#NGC 7318b

[quiltofstars]

Stephan's Quintet, HCG 92 // Alicia Rossiter & Gerould Kern

[spacetimewithstuartgary]

2 MILLION mph galaxy smash-up seen in unprecedented detail

A massive collision of galaxies sparked by one travelling at a scarcely-believable 2 million mph (3.2 million km/h) has been seen in unprecedented detail by one of Earth's most powerful telescopes.

The dramatic impact was observed in Stephan's Quintet, a nearby galaxy group made up of five galaxies first sighted almost 150 years ago.

It sparked an immensely powerful shock akin to a "sonic boom from a jet fighter" – the likes of which are among the most striking phenomena in the Universe.

Stephan's Quintet represents "a galactic crossroad where past collisions between galaxies have left behind a complex field of debris", which has now been reawakened by the passage of the galaxy, NGC 7318b.

The collision was spotted by a team of scientists using the first observations from the new 20-million Euro (£16.7million) William Herschel Telescope Enhanced Area Velocity Explorer (WEAVE) wide-field spectrograph in La Palma, Spain.

This cutting-edge, next generation science facility will not only reveal how our Milky Way galaxy was built up over billions of years, but also offer new insights into millions of other galaxies across the Universe.

The discovery of NGC 7318b smashing through Stephan's Quintet was observed by a team of more than 60 astronomers and has been published today in Monthly Notices of the Royal Astronomical Society.

The system is an ideal laboratory to understand the chaotic and often violent relationship between galaxies, which is why it was the focus of the first-light observation by the WEAVE Large Integral Field Unit (LIFU).

Lead researcher Dr Marina Arnaudova, of the University of Hertfordshire, said: "Since its discovery in 1877, Stephan's Quintet has captivated astronomers, because it represents a galactic crossroad where past collisions between galaxies have left behind a complex field of debris.

"Dynamical activity in this galaxy group has now been reawakened by a galaxy smashing through it at an incredible speed of over 2 million mph (3.2 million km/h), leading to an immensely powerful shock, much like a sonic boom from a jet fighter."

The international team has uncovered a dual nature behind the shock front, previously unknown to astronomers.

"As the shock moves through pockets of cold gas, it travels at hypersonic speeds – several times the speed of sound in the intergalactic medium of Stephan’s Quintet* – powerful enough to rip apart electrons from atoms, leaving behind a glowing trail of charged gas, as seen with WEAVE," Dr Arnaudova said.

However, when the shock passes through the surrounding hot gas, it becomes much weaker, according to PhD student Soumyadeep Das, of the University of Hertfordshire.

He added: "Instead of causing significant disruption, the weak shock compresses the hot gas, resulting in radio waves that are picked up by radio telescopes like the Low Frequency Array (LOFAR)."

The new insight and unprecedented detail came from WEAVE's LIFU, combining data with other cutting-edge instruments such as the LOFAR, the Very Large Array (VLA), and the James Webb Space Telescope (JWST).

WEAVE is a state-of-the-art super-fast mapping device that has been connected to the William Herschel Telescope to analyse the composition of stars and gas both in the Milky Way and in distant galaxies.

This is done with the help of a spectroscope, which reveals the elements that stars are made of by generating a bar code-style pattern within a prism of colours that make up a source of light.

It was designed and built following a multi-lateral agreement by France, Italy and the countries of the Isaac Newton Group of Telescopes partnership (the UK, Spain and the Netherlands).

Astronomers hope that WEAVE will help reveal how our galaxy formed in unprecedented detail and revolutionise our understanding of the Universe.

Dr Daniel Smith, of the University of Hertfordshire, said: "It's really neat work that Marina has put together with this large team, but this first WEAVE science paper also represents just a taste of what is to come over the next five years now that WEAVE is becoming fully operational."

Professor Gavin Dalton, WEAVE principal investigator at RAL Space and the University of Oxford, said: "It's fantastic to see the level of detail uncovered here by WEAVE.

"As well as the details of the shock and the unfolding collision that we see in Stephan's Quintet, these observations provide a remarkable perspective on what may be happening in the formation and evolution of the barely resolved faint galaxies that we see at the limits of our current capabilities."

Dr Marc Balcells, director of the Isaac Newton Group of Telescopes, said: "I'm excited to see that the data gathered at the WEAVE first light already provide a high-impact result, and I'm sure this is just an early example of the types of discoveries that will be made possible with WEAVE on the William Herschel Telescope in the coming years."

TOP IMAGE: WEAVE data overlaid on a James Webb Space Telescope image of Stephan's Quintet, with green contours showing radio data from the Low Frequency Array (LOFAR) radio telescope. The orange and blue colours follow the brightness of Hydrogen-alpha obtained with the WEAVE LIFU, which trace where the intergalactic gas is ionised. The hexagon denotes the approximate coverage of the new WEAVE observations of the system, which is 36 kpc wide (similar in size to our own galaxy, the Milky Way). Credit University of Hertfordshire

CENTRE IMAGE: Radio observations of Stephan's Quintet at different frequencies, taken by the Low Frequency Array (LOFAR) and the Very Large Array (VLA). The red colours indicate strong radio emission coming from the shock front, as well as from some of the galaxies in the group and beyond. Credit University of Hertfordshire

LOWER IMAGE: WEAVE decomposition of gas in Stephan's Quintet, overlaid on a JWST image. The red highlights gas shocked by the collision, while green and blue shows star-forming regions. The purple areas represent bubbles with an unknown origin. The black contours show neutral Hydrogen, and its location relative to the shocked gas (in red) suggests that is where it comes from. Credit University of Hertfordshire

BOTTOM IMAGE: An image revealing the age of high-energy plasma in Stephan's Quintet, as captured by radio observations with the VLA and LOFAR. The blue colours indicate older, low-energy plasma, while the orange and yellow areas mark regions that are being actively energised. The thin, dashed lines outline the location of the galaxies in the group, while the black solid lines trace the shock region identified with WEAVE data, which perfectly matches the areas where this plasma is being re-accelerated by the collision between NGC 7318b and the group. Credit University of Hertfordshire

[blasteffect]

Stephan's Quintet (NGC 7319, 7318A, 7318B, and 7317)

Credit: NASA, ESA and the Hubble SM4 ERO Team

[just--space]

Stephan s Quintet : The first identified compact galaxy group, Stephan's Quintet is featured in this eye-catching image constructed with data drawn from the extensive Hubble Legacy Archive. About 300 million light-years away, only four of these five galaxies are actually locked in a cosmic dance of repeated close encounters. The odd man out is easy to spot, though. The interacting galaxies, NGC 7319, 7318A, 7318B, and 7317 have an overall yellowish cast. They also tend to have distorted loops and tails, grown under the influence of disruptive gravitational tides. But the predominantly bluish galaxy, NGC 7320, is closer, just 40 million light-years distant, and isn't part of the interacting group. Stephan's Quintet lies within the boundaries of the high flying constellation Pegasus. At the estimated distance of the quartet of interacting galaxies, this field of view spans about 500,000 light-years. But moving just beyond this field, up and to the right, astronomers can identify another galaxy, NGC 7320C, that is also 300 million light-years distant. Including it would bring the interacting quartet back up to quintet status. via NASA

[apod]

2021 December 18

Stephan's Quintet Image Credit: NASA, ESA, Hubble Legacy Archive; Processing & Copyright: Bernard Miller

Explanation: The first identified compact galaxy group, Stephan's Quintet is featured in this eye-catching image constructed with data drawn from the extensive Hubble Legacy Archive. About 300 million light-years away, only four of these five galaxies are actually locked in a cosmic dance of repeated close encounters. The odd man out is easy to spot, though. The interacting galaxies, NGC 7319, 7318A, 7318B, and 7317 have an overall yellowish cast. They also tend to have distorted loops and tails, grown under the influence of disruptive gravitational tides. But the predominantly bluish galaxy, NGC 7320, is closer, just 40 million light-years distant, and isn't part of the interacting group. Stephan's Quintet lies within the boundaries of the high flying constellation Pegasus. At the estimated distance of the quartet of interacting galaxies, this field of view spans about 500,000 light-years. But moving just beyond this field, up and to the right, astronomers can identify another galaxy, NGC 7320C, that is also 300 million light-years distant. Including it would bring the interacting quartet back up to quintet status.

∞ Source: apod.nasa.gov/apod/ap211218.html

[baptaincarnacles]

Space

Has anyone else seen the latest pictures taken by NASA? The ones from the new James Webb Space Telescope? If not, I thoroughly recommend checking them out! It is essentially an open opportunity of building into the future! The things that are being discovered are going to push for more exploration!

Okay, enough with the corny behavior; let me show the images.

This, my friends, is the Carina Nebula. For those of you who aren't %100 percent certain about the definition, a nebula, in simplest terms, is a cloud of gas and dust in outer space. While this has been captured on camera before, this is the highest resolution that humans have, so far, been able to see it in!

But, this beautiful, mountainous formation (with dipping valleys and extreme heights) is an edge of a nearby, young, star-forming location! It's called NGC 3324 within the Catina Nebula. It's so wonderful with the number of stars that speckle across it, granting it such a breathtaking view!

Dubbed the Cosmic Cliffs, Webb's seemingly three-dimensional photograph looks like scaling mountains on a moonlit night! The reality of it is fascinating as well. It's the edge of a gaseous cavity within NGC 3324. The tallest of the so-called "peaks" can be SEVEN light-years high! The sunken, cavernous area (towards the right) has been carved by intense ultraviolet radiation and stellar winds from extremely extensive, hot, young stars located within the center of the location, above the area shown in this image!

(To learn more about this image in particular: https://www.nasa.gov/image-feature/goddard/2022/nasa-s-webb-reveals-cosmic-cliffs-glittering-landscape-of-star-birth )

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This is the Stephan's Quintet! A Quintet is a group of five things! In this case, a group of five galaxies near one another, two in a collision!

This spectacular visual grouping of five galaxies is best known for its prominent feature in the Holiday classic "It's a Wonderful Life." The James Webb space camera even revealed this formation in a new light (and believe me, the spectacular development of this image is just as outstanding)! According to the official Nasa website, "This enormous mosaic is Webb’s largest image to date, covering about one-fifth of the Moon’s diameter. It contains over 150 million pixels and is constructed from almost 1,000 separate image files. The information from Webb provides new insights into how galactic interactions may have driven galaxy evolution in the early universe." That is enormous! Immense amounts of data were placed into this image, and viewing the full extent must be breathtaking! And even in the visuals, you can see an ample amount of stars and galaxies much farther in the distance!

But Webb's robust infrared vision and exceptionally high spatial resolution show never-before-seen details in this galaxy group! Shining clusters of millions of stars and starburst regions of recent star birth! Absolute wonders of gas sweeping the sky like a tail; dust and stars being pulled from each galaxy due to gravitational interaction! And, most spectacular, Webb captured the shockwave of the universe NGC 7318B as it collided through the cluster! (To learn more about this image in particular: https://www.nasa.gov/image-feature/goddard/2022/nasa-s-webb-sheds-light-on-galaxy-evolution-black-holes )

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The Southern Ring Nebula! This is a planetary Nebula, which means that it emits expanding, glowing shells of ionized gas! More specifically, from red giant stars in their late-life! (The name is misleading because a planetary nebula relates nothing to a planet.) The planetary nebula captured in the images above has been emitting rings of gas and dust for thousands of years in all directions! The Webb telescope revealed for the first time that this star is cloaked in the dust!

Cataloged as NGC 3132, this planetary nebula is known as the Southern Ring Nebula. It is approximately two thousand and five hundred light-years away!

With new visualization provided by the telescope, scientists can begin to explore more specifics about planetary nebulae. As explained, " Understanding which molecules are present, and where they lie throughout the shells of gas and dust will help researchers refine their knowledge of these objects."

(To learn more about this image in particular: https://www.nasa.gov/image-feature/goddard/2022/nasa-s-webb-captures-dying-star-s-final-performance-in-fine-detail )

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WASP-96 b! WASP-96 b is a gas giant that orbits a distant sun-like star! What's so significant about a hot, puffy gas giant? The James Webb Space Telescope has captured the distinct signature of water, along with evidence for clouds and haze, within the atmosphere of the gas giant! "The observation, which reveals the presence of specific gas molecules based on tiny decreases in the brightness of precise coloration of light, is the most detailed of its kind to date, demonstrating Webb’s unprecedented ability to analyze atmospheres hundreds of light-years away," according to the official NASA site.

That is an extreme leap! The Hubble Space telescope, for the last two decades, has analyzed various exoplanets' atmospheres, but never in such detail! Webb's immediate and highly detailed observation marks a monumental step forward in the quest to characterize potentially habitable planets beyond our own!

(To learn more about this image in particular: https://www.nasa.gov/image-feature/goddard/2022/nasa-s-webb-reveals-steamy-atmosphere-of-distant-planet-in-detail )

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SMACS 0723

The James Webb Telescope has produced the most profound and sharpest infrared image of the distant universe to date! This image is known as Webb's First Deep Field! It's a photograph of a cluster of galaxies (SMACS 0723), and the image is overflowing with details!

NASA's observation states, "Thousands of galaxies – including the faintest objects ever observed in the infrared – have appeared in Webb’s view for the first time. This slice of the vast universe covers a patch of sky approximately the size of a grain of sand held at arm’s length by someone on the ground." That is astounding! Knowing the universe is infinitely expanding and incredibly vast! Just a spectacular piece of knowledge!

(To learn more about this image in particular: https://www.nasa.gov/image-feature/goddard/2022/nasa-s-webb-delivers-deepest-infrared-image-of-universe-yet )

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That's all for now, but it is incredible seeing how far technology has advanced.

[stefany]

Stephan s Quintet The first identified compact galaxy group, Stephan's Quintet is featured in this eye-catching image constructed with data drawn from the extensive Hubble Legacy Archive. About 300 million light-years away, only four of these five galaxies are actually locked in a cosmic dance of repeated close encounters. The odd man out is easy to spot, though. The interacting galaxies, NGC 7319, 7318A, 7318B, and 7317 have an overall yellowish cast. They also tend to have distorted loops and tails, grown under the influence of disruptive gravitational tides. But the predominantly bluish galaxy, NGC 7320, is closer, just 40 million light-years distant, and isn't part of the interacting group. Stephan's Quintet lies within the boundaries of the high flying constellation Pegasus. At the estimated distance of the quartet of interacting galaxies, this field of view spans about 500,000 light-years. But moving just beyond this field, up and to the right, astronomers can identify another galaxy, NGC 7320C, that is also 300 million light-years distant. Including it would bring the interacting quartet back up to quintet status. December 18, 2021 via Space https://ift.tt/3ISEvvE

[poetarebel]

El telescopio espacial James Webb de la NASA revela el quinteto de Stephan bajo una nueva luz. Este enorme mosaico es la imagen más grande de Webb hasta la fecha, y cubre aproximadamente una quinta parte del diámetro de la Luna. Contiene más de 150 millones de píxeles y está construida con casi 1.000 archivos de imágenes individuales. La información de Webb proporciona nuevos conocimientos sobre cómo las interacciones galácticas pueden haber impulsado la evolución de las galaxias en el universo primitivo. Con su poderosa visión infrarroja y una resolución espacial extremadamente alta, Webb muestra detalles nunca antes vistos en este grupo de galaxias. Cúmulos brillantes de millones de estrellas jóvenes y regiones de brotes estelares donde nacen estrellas frescas adornan la imagen. Amplias colas de gas, polvo y estrellas son atraídas desde varias de las galaxias debido a las interacciones gravitacionales. De manera más dramática, Webb captura enormes ondas de choque cuando una de las galaxias, NGC 7318B, atraviesa el cúmulo.

Créditos: NASA, ESA, CSA y STScI

[captainpotassium]

Stephan s Quintet via NASA https://ift.tt/3ISEvvE

The first identified compact galaxy group, Stephan's Quintet is featured in this eye-catching image constructed with data drawn from the extensive Hubble Legacy Archive. About 300 million light-years away, only four of these five galaxies are actually locked in a cosmic dance of repeated close encounters. The odd man out is easy to spot, though. The interacting galaxies, NGC 7319, 7318A, 7318B, and 7317 have an overall yellowish cast. They also tend to have distorted loops and tails, grown under the influence of disruptive gravitational tides. But the predominantly bluish galaxy, NGC 7320, is closer, just 40 million light-years distant, and isn't part of the interacting group. Stephan's Quintet lies within the boundaries of the high flying constellation Pegasus. At the estimated distance of the quartet of interacting galaxies, this field of view spans about 500,000 light-years. But moving just beyond this field, up and to the right, astronomers can identify another galaxy, NGC 7320C, that is also 300 million light-years distant. Including it would bring the interacting quartet back up to quintet status.

(Published December 18, 2021)

[astronomyforastrologers]

Webb SMACS 0723

Webb Telescope Reveals a Spectacular Universe ~ 14 Jul 2022, Philip Sedgwick

Monday last, President Joe Biden held a press conference in which NASA afforded him the opportunity to release the first official photograph of an image captured by the powerful Webb telescope, previewing Tuesday’s official release of a handful of pictures. The image he revealed was of SMACS 0723, an image of grand galactic goulash with clarity and conciseness never before seen by human eyes.

Known as SMACS J0723.3-7327 by its more official, coordinate-infused name, one might expect this object revealed by the President to have connections with his natal chart. Well, this galactic grouping appears on the zodiac at 23 Scorpio 35 - a degree which virtually bisects the Sun and Venus in Biden’s natal chart and trines his Jupiter in Cancer. There’s an astrological eyebrow raiser for you!

This galactic cluster image reveals the effects of gravitational lensing such as is organically conducted by gigantic galactic goodies like the Great Attractor and the Shapley Attractor. This is the property of being so gravitationally significant the object bends light such that what lies behind the object can be seen.

Webb First Public Image, SMACS 0723

These images come from an infrared camera developed by a team at the University of Arizona. Why infrared? It is easier for this spectrum of “light,” albeit invisible to see through the dust clouds of space.

While taking in these images, the question that seemed to echo through the galactic dust clouds was: “Cool. Where are they?” So, with a few notes provided by NASA, following are the zodiacal degrees for the initial collection of objects. These coordinates are for epoch 2000.0. To factor in the precession that occurred in the past twenty-two years and get you halfway through 2022, add approximately 19 minutes of zodiacal arc.

Here are a few thoughts and the coordinates for the other images:**

Stephan's Quintet, NGC 7318B, at 26 Pisces 16

Look familiar? In a far more primitive image this collection of five galaxies was once used in the movie It’s a Wonderful Life.

Stephan's Quintet: Ready for its close-up, Mr. DeMille

The Carina Nebula, NGC 3324 at 19 Libra 20

The illusion of a landscape created by viewing the edge of an immense gaseous cavity within the nebula.

Carina Nebula

For the remaining two images of the initial handful, visit: The Webb Telescope

Southern Ring Nebula, NGC 3132 at 23 Virgo 50

Wasp 96-b at 7 Pisces 27

The corresponding image is actually a diagram of the light wavelength of a hot, giant, gaseous exoplanet. An exoplanet is a planet orbiting a star that is not our Sun. According to _The Exosolar Planets Encyclopedi_a there are 5,113 suspected planets around other stars. As well there are 2,638 planet candidates yet to be confirmed and within this combing of planets more than 820 multiple planets systems - as in more than one planet orbiting a star system outside of our own.

Here’s to these images stirring you to maintain a “keep looking up” to arouse awe, inspire creativity and seek solace in the Heavens.

With these images ping ponging between the retina and the brain, no doubt this would be a great time for ordering up a Galactic Report if you don’t yet have one. Maybe it’s time to check out the Galactic Trilogy and include more of the whole sky in your astrological perspectives... maybe it’s time to have a consultation or consultations that include elements from beyond the confines of our solar system. The links below assist in navigating through the obscuring dust clouds of the mundane and right to the ordering page.

And don't forget the few remaining days of the Inflation Busters where you can order a Galactic Report at a reduced price!

In film world news, I am recently aware of my film ZAP!’s scheduled screening in the “The Future Awaits” block at the San Antonio Film Festival on 5 August 2022, 3 PM to 5 PM, Screen 2, in the Radius Center in San Antonio, TX. This is the last festival screening. More details on where the film can be streamed coming soon!

METEORIC, another film with the message of keep an eye on the sky, awaits its first festival selection. Next month a series of fests announce Official Selections! Fingers crossed. However, I have received one tip-off and a wink and a nod from another festival director that favorable outcomes are on the next event horizon for the film. Stay tuned!

One Stop Shopping Order Form Astrological Textso

Meteoric the Movie on Vimeo ZAP! on Vimeo

[quiltofstars]

Stephan's Quintet (HCG 92, upper right) and the Deer Lick Group (lower left) // Francis Moreau

[uzaydanhaberler]

Stephan’ın Beşlisi

Günün Astronomi Görseli 18 Aralık 2021

Görsel & Telif: NASA, ESA, Hubble Legacy Archive; Görüntü İşleme & Telif: Bernard Miller

Belirlenmiş ilk kompakt galaksi grubu, Stephan’ın Beşlisi, geniş Hubble Mirası Arşivi‘nden alınan verilerle oluşturulan bu göz alıcı görselde gösteriliyor. Yaklaşık 300 milyon ışık yılı mesafede, bu galaksilerden yalnızca dört tanesi gerçekte tekrarlayan yakın temasların bir kozmik dansında hapsolmuş durumdalar. Burada dışlanmış olansa kolayca seçilebiliyor. Etkileşen galaksiler NGC 7319, 7318A, 7318B ve 7317, genel olarak sarımsı bir tona sahipler. Aynı zamanda, bozucu kütle çekim akımlarının etkisi altında oluşmuş, bozulmuş düğümler ve kuyruklara sahip olma eğilimi gösteriyorlar. Ama baskın olarak mavimsi galaksi NGC 7320 daha yakında, sadece 40 milyon ışık yılı mesafede ve etkileşen grubun bir parçası değil. Stephan’ın Beşlisi takım yıldız Kanatlı At‘ın (Pegasus) sınırları içinde yer alıyor. Etkileşen galaksiler beşlisinin tahmini mesafesinde, bu görüş alanı 500 bin ışık yılı boyunca uzanıyor. Ama bu alanın hemen dışına çıkıldığında, sağ üste doğru, astronomlar bir başka galaksiyi, yine 300 milyon ışık yılı uzaklıktaki NGC 7320C’yi belirleyebiliyorlar. Bu da dahil edilirse, etkileşen beşli artık altılı durumuna gelmeli.

Görsel & Telif: NASA, ESA, Hubble Legacy Archive; Görüntü İşleme & Telif: Bernard Miller

Yazarlar & Editörler: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) NASA yetkilisi: Phillip Newman Özel haklara tabidir. NASA Web Gizlilik Politikası ve Önemli Bildirimler Bir ASD at NASA / GSFC & Michigan Tech. U. hizmetidir.

Stephan’ın Beşlisi yazısı ilk olarak Uzaydan Haberler sayfasında göründü.

[therealuniverse]

STEPHAN'S QUINTET Stephan's Quintet is the first compact galaxy group ever discovered. Three hundred million light years away in the Pegasus constellation, four of the five galaxies interact in a violent cosmic collision. The outlier is easy to spot--at 40 million light years away, NGC 7320's bluish tint indicates a lower redshift, and thus a smaller distance.

The yellowish interacting galaxies, (left-right) NGC 7319, 7318B, 7318A, and 7317, possess warped tails and elongated arms that are a result of the gravitational tides. As NGC 731B moves toward the center of the group at 1000 km/second, it collides with gas that lies in the intergalactic space. Much like a massive-scale sonic boom, this collision produces a shock wave that is bigger than our own Milky Way. This shock wave produces a turbulent emission of molecular hydrogen that was detected by the Spitzer Space Telescope using infrared spectral analysis. (The emission can be seen here as a glowing green arc between the galaxies: http://bit.ly/TYRV8z) The fragility of the hydrogen molecule made this discovery unexpected--normally it would be destroyed in this type of shock wave. One hypothesis that a series of smaller shock waves travel in the larger one's wake, allowing the molecular hydrogen to survive. Studying this powerful emission may provide clues about the beginning of the Universe, since it is believed that shocked molecular hydrogen existed in its early formation when galactic mergers were very common. -RLO Image credit: Hubble Legacy Archive, ESA, NASA; Processing: Al Kelly Sources: http://www.spitzer.caltech.edu/images/1605-ssc2006-08a-A-Shocking-Surprise-in-Stephan-s-Quintet http://phys.org/news11392.html

[thetimeandspaceblog]

Stephan's Quintet from Hubble

When did these big galaxies first begin to dance? Really only four of the five ofStephan's Quintet are locked in a cosmic tango of repeated close encounters taking place some 300 million light-years away. The odd galaxy out is easy to spot in this recently reprocessed image by the Hubble Space Telescope -- the interacting galaxies, NGC 7319, 7318B, 7318A, and 7317 (left to right), have a more dominant yellowish cast. They also tend to have distorted loops and tails, grown under the influence of disruptive gravitational tides. The mostly bluish galaxy, large NGC 7320 on the lower left, is in the foreground at about 40 million light-years distant, and so is not part of theinteracting group. Data and modeling indicate that NGC 7318B is a relatively new intruder. A recently-discovered haloof old red stars surrounding Stephan's Quintet indicate that at least some of these galaxies started tangling over a billion years. Stephan's Quintet is visible with a moderate sized-telescope toward the constellation of Winged Horse (Pegasus).

Image Copyright: Image Credit: NASA,ESA, Hubble; Processing: Daniel Nobre

Hubble Space Telescope

Time And Space

[starwalkapp]

Stephan's Quintet from Hubble⠀ ⠀ Image Credit: NASA, ESA, Hubble; Processing: Daniel Nobre⠀ ⠀ Explanation: When did these big galaxies first begin to dance? Really only four of the five of Stephan's Quintet are locked in a cosmic tango of repeated close encounters taking place some 300 million light-years away. The odd galaxy out is easy to spot in this recently reprocessed image by the Hubble Space Telescope -- the interacting galaxies, NGC 7319, 7318B, 7318A, and 7317 (left to right), have a more dominant yellowish cast. They also tend to have distorted loops and tails, grown under the influence of disruptive gravitational tides. The mostly bluish galaxy, large NGC 7320 on the lower left, is in the foreground at about 40 million light-years distant, and so is not part of the interacting group. Data and modeling indicate that NGC 7318B is a relatively new intruder. A recently-discovered halo of old red stars surrounding Stephan's Quintet indicate that at least some of these galaxies started tangling over a billion years. Stephan's Quintet is visible with a moderate sized-telescope toward the constellation of Winged Horse (Pegasus).⠀ ⠀ NASA APOD (https://go.nasa.gov/2WbVVK4) via Instagram http://bit.ly/2XofOz5

[apod]

2019 June 3

Stephan's Quintet from Hubble Image Credit: NASA, ESA, Hubble; Processing: Daniel Nobre

Explanation: When did these big galaxies first begin to dance? Really only four of the five of Stephan's Quintet are locked in a cosmic tango of repeated close encounters taking place some 300 million light-years away. The odd galaxy out is easy to spot in this recently reprocessed image by the Hubble Space Telescope -- the interacting galaxies, NGC 7319, 7318B, 7318A, and 7317 (left to right), have a more dominant yellowish cast. They also tend to have distorted loops and tails, grown under the influence of disruptive gravitational tides. The mostly bluish galaxy, large NGC 7320 on the lower left, is in the foreground at about 40 million light-years distant, and so is not part of the interacting group. Data and modeling indicate that NGC 7318B is a relatively new intruder. A recently-discovered halo of old red stars surrounding Stephan's Quintet indicate that at least some of these galaxies started tangling over a billion years. Stephan's Quintet is visible with a moderate sized-telescope toward the constellation of Winged Horse (Pegasus).

∞ Source: apod.nasa.gov/apod/ap190603.html