#Coma Cluster

[ton-618-ton-618]

2024 March 27

A picture filled with fuzzy yellow spots is presented. All of the yellow spots are galaxies, and most of the galaxies are members of the Coma Cluster of Galaxies. The two bright blue dots are foreground stars in our own Milky Way Galaxy.

The Coma Cluster of Galaxies

Image Credit & Copyright: Joe Hua

Explanation: Almost every object in the featured photograph is a galaxy. The Coma Cluster of Galaxies pictured here is one of the densest clusters known - it contains thousands of galaxies. Each of these galaxies houses billions of stars - just as our own Milky Way Galaxy does. Although nearby when compared to most other clusters, light from the Coma Cluster still takes hundreds of millions of years to reach us. In fact, the Coma Cluster is so big it takes light millions of years just to go from one side to the other. Most galaxies in Coma and other clusters are ellipticals, while most galaxies outside of clusters are spirals. The nature of Coma's X-ray emission is still being investigated.

[livingforstars]

Thousands of Coma Cluster Galaxies - September 17th, 1995.

"Almost every object in the above photograph is a galaxy. The Coma Cluster of galaxies pictured is a dense cluster containing many thousands of galaxies. Many of these galaxies contain as many stars as our own Milky Way galaxy. Although nearby when compared to most other clusters, light from the Coma Cluster still takes hundreds of millions of years to reach us. In fact, the Coma Cluster is so big it takes light millions of years just to go from one side to the other! This picture was created at the WWW site Skyview, a "virtual observatory" where it is possible to view any part of the sky in wavelengths from radio to gamma-ray."

[whats-in-a-sentence]

During the early 1930s, Fritz Zwicky, a professor of astronomy at the California Institute of Technology (a famously caustic scientist whose appreciation for symmetry led him to call his colleagues spherical bastards because, he explained, they were bastards any way you looked at them), realized that the outlying galaxies in the Coma cluster, a collection of thousands of galaxies some 370 million light-years from earth, were moving too quickly for their visible matter to muster an adequate gravitational force to keep them tethered to the group.

"The Fabric of the Cosmos" - Brian Greene

[netmassimo]

An image captured by the Dark Energy Camera (DECam) depicts the Coma Cluster, also known as Abell 1656, so named because it's part of the constellation Coma Berenices. DECam was designed to conduct a long-term investigation of dark energy but is also useful for other types of astronomical studies. The Coma Cluster is linked to the study of dark matter since the inconsistency between the estimate of its overall mass and the measurement of its gravitational effects stimulated the research that led to today's dark matter models.

[dcxdpdabbles]

Could we get a continuation of a cluster of cores? Teen parent Danny is gonna be run ragged with so many little ones and it will only be a matter of time before Dani and Lian shows them the Puppy Eyes, good thing there gonna have plenty of aunts and uncles to also bully.

Roy's newfound hero is still locked in a coma. It's been nearly three months now, and they had managed to keep him alive with tubes feeding him food and water, but it worried everyone they could not figure out the reason for his slumber.

Dani, the young alien girl, assured everyone it was fine, as she could naturally sense her father's core healing. Despite their humanoid appearance, a quick scan showed that the Fentons (as Dani had identified them) were indeed aliens.

Then there were their documents. They were all legal... in Daxam, where these travelers were from. He had contacted the Justice League, and the Green Lanterns had easily authenticated their identities.

Daxam was a plant with a red sun, one that had life forms similar to those of Kryptonians. However, the natives of the plant, before Krypton colonized it, were different in how their young were born and the origin of their powers.

Roy has learned through the Oa headquarters records that Indigenous Daxamites were formed within cores. These egg-like parts held the entity of their souls but at too different times to fully hatch, so a sibling of a cluster could hatch five years before the rest. When they formed, their powers came from an "Obsession" or a part of their environment instead of just the sun.

Their culture and species revolved heavily around the child clusters, as Indigenous Daxamite could only lay them once in their lifetime. This was disastrous when their kind was slowly hunted into extinction, as Daxam was conquered nearly a hundred thousand years ago and became a colony by Krypton.

The Kryptonians had always targeted the clusters before they could hatch, drastically declining the numbers of Daxamites.

The Indigenous Daxamites had nearly been wiped out in a horrific genocide during the colonization days, and the remaining ones had been mixed with Kryptonians to the point their species had evolved.

The cluster of core births was nothing more than history to the planet, even when outliving Krypton. That did not mean that the generational racism died with the Kryptonians.

Daxamites had become hostile to the original Daxam dwellers (Roy found records of Kryptonians demonizing the species, often referring to their god Rao commanding them to cleanse the planet for daring to gain power from pagan gods. He is pretty sure that was just an excuse for the holy war, as Clark had never mentioned anything in.), and a sort of witch hunt for any pure Indigenous Daxamite sprung to life a thousand years ago.

The Green Lanterns corps had to step in when word reached them, but by that point, many innocent Daxamites had been executed on accusations alone of being Indigenous Daxamites. To the heavy heart of the reporting Green Lantersn, the Indigenous Daxamites have been wiped from existence because of the witch trials a good nine hundred years ago.

Oh, so they thought.

Danny Fenton and his children may as well be the very last of their kind. Roy figured that Danny and his people had hidden themselves from their government.

He likely had spent his life attempting to keep his kind a secret, as his planet had been under the thumb of an oppressive dictatorship since Krypton had perished. Daxam was notorious for its complicated border control, which made leaving the planet near impossible.

He is still determining what led to Danny's discovery, but based on what they managed to salvage from the bomb site of his once house, Danny fled his planet after his secret was outed.

There was an active warrant for his capture on Daxam and an open order to neutralize his "demonic unholy offspring." Roy felt sick when he heard from a grim-faced John Stewart, the Green Lanter working as their intermediary between the two planets, that the populace on Daxam had been campaigning for Danny's death to be slow and public, as the hatred for his kind was that deep.

Dani refused to explain how her father smuggled them all out. She mentioned a few times that they had help from a mysterious "Clockwork" but had to keep a tight lid on anything else.

All they knew for sure was that Danny was severely damaged from the escape, and his constant feedings to his young (even in his sleep, his body naturally sent over ectoplasm to the cluster that never left this side) had put him in grave danger when he saved Lian. Roy still held his daughter only because this man risked everything for a child of a planet he had no ties to.

He was willing to take on all Daxam if they dared to come for Danny for that alone.

Thankfully, Justice Leauge felt the same way, and with the support of the Green Lanterns Corp, they were debating with the galactic high court to make Danny a citizen of Earth using asylum. Things were looking good for their cause, given that Danny was with a child (children??) and that his small family was an endangered species.

The Justice League was also a recognized police force by the galactic association, no matter how new, so their word carried a lot in the court.

Roy was letting the big names handle everything political. Bruce, especially, was working overtime since the big bad bat had a giant soft spot for children. He focused more on his living situation and Danny himself.

Not only because they were best friends but because Gotham seemed to be one of the only cities with "ectoplasm" (High-density levels of death?? It was naturally, according to Daxam) that the Fentons needed. Danny was resting in the Drake Hospital of Gotham, while Dani had been housed with Jason.

Jason had been more than willing to open his home to Roy and Lian until they could return to their city. They were among the many houses destroyed, so it would be a while before their home was fixed. Oliver extended the same offer, wanting his son and granddaughter back home with him.

He would have taken Oliver's offer had Jason not asked first. Things were better between the arrows now that Roy had cleaned his addiction, but he felt more at ease with Jason.

She was still young enough to need slight feedings from her father but was also able to process food from the environment. Roy tried his best to make Dani feel at home, but he could tell by her somber eyes and weak smile that she was struggling with her displacement.

Jason was better at helping her. He made time to read her a bedtime story, have her help cook, and even take her on rides around Gotham on his bike, but somehow, he did it in a way that she didn't have to speak.

Dani seemed relaxed with him.

Roy has always known Jason was better with kids, but seeing it in person makes his heart melt.

"Is my dad awake yet?" Dani asks Lian one morning. The two girls were playing with dolls, though Dani seemed confused by them the first time. She apparently never had a doll before, and Roy is curious if it was due to her being on the constant run or if dolls were not toys on her home planet.

"I don't think so. But don't worry, my Daddy is a hero. He'll save him!"

Roy's heart leaps in joy at her words, but it breaks only half a second when Dani replies in a small voice. "My Dad is a hero too. But he can still die."

Gosh, is that something a child should say?

Roy puts down the pan he used to make pancakes, wiping his hands on his apron to tell the girls breakfast is ready when Jason comes stumbling out of his room. He had a late night as Red Hood, having taken out an uprising in one of his territories.

Usually, this means Jason sleeps until two or three in the afternoon so to see him up and about at nine was a shock. He has his phone pressed to his ear, with a frantic look in his eye causing Roy to tense.

"Thanks, Tim. I'll get Roy and the girls ready. We'll be there as soon as I can," Jason said, twisting to grab hold of Roy's shoulder. We need to get to Drake Hospital."

Hope rose in his chest as Roy pressed a hand over Jason's "Is he awake?"

Jason's mouth tightens. "No. One of the cores hatched."

Oh no.

[joelscruff]

save me nerds gummy clusters save me

[astronerdscorner]

Deep look into the past

This picture of the constellation of Coma Berenices isnt very spectacular on first glance. But within this constellation lays the Coma galaxy cluster, a group of 1000 Galaxies each with millions .... billions of own stars.

Most of those galaxies are roughly 300 Million lightyears away ... a distance hard to process for the human mind.

In the second picture each galaxy visible is marked in red or blue depending on the catalog it registered in. Who wanna count them? Who wanna guess on how many civilization we are looking at?

Bilddaten:

- RGB 63 x 300s / Gain 100

- 25 Flat Dark

- 25 Flat Darks

- 25 Darks

Setup:

- Skywatcher 150/750 PDS

- Omegon 571C

- Skywatcher EQ6R Pro

- Zwo Asi 178mm

[stuffmikeclicked]

It occurred to me that since I was last on Tumblr, I got a new astrophotography setup. I've only used it a few times, but most nights I'd rather haul out Lyra the Dob for a quick and easy setup.

The scope part of the new rig arrived the day before I left for a week-long trip to dark skies as a mentor at an astronomy camp. I got the go-ahead to bring it; the seeing was bad all week so the stars were bloated, but I still had a great time.

From that week:

At top left is Messier 109; the bright star is the bottom-left corner of the Big Dipper's cup. I'd chosen it for first light because I'd never imaged it before and it has a beautiful barred spiral structure. In this cropped version you can see the structure and three faint satellite galaxies to the right, running in a row from above the galaxy to just below and right of it.

The one at bottom right is the Coma Galaxy Cluster. The seeing made it hard to tell, but *most* of the points of light in that image are individual galaxies and not stars. I could see a few dozen through my visual scope one night. It was glorious.

[chibinotan]

Lensed Seahorse

[silverstellatus]

Yayyy space friends :)

[cosmicfocus]

M53

A globular cluster orbiting the Milky Way galaxy and a short article about the Messier Catalogue.

A Distant Globular Cluster NGC 5024 in Coma Berenices Image exposure:36 minutesImage Size:Size: 57.5 x 38.3 arcminImage date:2024-06-27 M53 is a globular cluster orbiting the Milky Way galaxy at a distance of about 58,000 light-years from the Solar System and it brings my image count of the 110 Messier listed objects to 58. I recently posted a short article about the Messier Catalogue on the…

[silvereyedowl]

[source]

The Coma Cluster of Galaxies - November 5th, 1996.

"Almost every object in the above photograph is a galaxy. The Coma Cluster of galaxies pictured is one of the densest clusters known - it contains thousands of galaxies. Each of these galaxies house billions of stars - just like our own Milky Way galaxy. Although nearby when compared to most other clusters, light from the Coma Cluster still takes hundreds of millions of years to reach us. In fact, the Coma Cluster is so big it takes light millions of years just to go from one side to the other! Most galaxies in Coma and other clusters are ellipticals, while most galaxies outside of clusters are spirals."

[whats-in-a-sentence]

All of this assumes that both we and the Coma cluster astronomer are moving only with the cosmic flow from spatial expansion, since this ensures that her slicing of the spacetime loaf coincides with ours – it ensures that her now-lists agree with ours. However, should she break ranks and move through space substantially in excess of the cosmic flow, her slices will tilt relative to ours, as in Figure 8.9.

Notice, though, that her slices will no longer be spatially homogeneous. Each angled slice in Figure 8.9 intersects the universe in a range of different epochs and so the slices are far from uniform.

"The Fabric of the Cosmos" - Brian Greene

[jcmarchi]

January’s Night Sky Notes: Connecting the ‘Dots’ with Asterisms - Technology Org

New Post has been published on https://thedigitalinsider.com/januarys-night-sky-notes-connecting-the-dots-with-asterisms-technology-org/

January’s Night Sky Notes: Connecting the ‘Dots’ with Asterisms - Technology Org

In NASA’s December Night Sky Notes, authors mentioned that the Orion constellation has a distinct hourglass shape that makes it easy to spot in the night sky. But what if we told you that this is not the complete constellation, but rather, an asterism?

Stars that make up the Winter Circle, as seen on January 1, 2024, Sky Safari

An asterism is a pattern of stars in the night sky, forming shapes that make picking out constellations easy. Throughout history, cultures have created these patterns as part of storytelling, honoring ancestors, and timekeeping.

Orion’s hourglass is just one of many examples of this, but did you know Orion’s brightest knee is part of another asterism that spans six constellations, weaving together the Winter night sky? Many asterisms feature bright stars that are easily visible to the naked eye. Identify these key stars, and then connect the dots to reveal the shape.

This image shows the region around the Hyades star cluster, the nearest open cluster to us. The Hyades cluster is very well-studied due to its location, but previous searches for planets have produced only one. A new study led by Jay Farihi of the University of Cambridge, UK, has now found the atmospheres of two burnt-out stars in this cluster — known as white dwarfs — to be “polluted” by rocky debris circling the star. Inset, the locations of these white dwarf stars are indicated — stars known as WD 0421+162, and WD 0431+126. Image credit: NASA, ESA, STScI, and Z. Levay (STScI)

Try looking for these asterisms this season and beyond:

Winter Circle – this asterism, also known as the Winter Hexagon, makes up a large portion of the Winter sky using stars Rigel, Aldebaran, Capella, Pollux, Procyon, and Sirius as its points. Similarly, the Winter Triangle can be found using Procyon, Sirius, and Betelgeuse as points. Orion’s Belt is also considered an asterism.

Diamond of Virgo – this springtime asterism consists of the following stars: Arcturus, in the constellation Boötes; Cor Caroli, in Canes Venatici; Denebola in Leo, and Spica in Virgo. Sparkling at the center of this diamond is the bright cluster Coma Berenices, or Bernice’s Hair – an ancient asterism turned constellation!

Summer Triangle – as the nights warm up, the Summer Triangle dominates the heavens. Comprising the bright stars Vega in Lyra, Deneb in Cygnus, and Altair in Aquila, this prominent asterism is the inspiration behind the cultural festival Tanabata. Also found is Cygnus the Swan, which makes up the Northern Cross asterism.

Great Square of Pegasus – by Autumn, the Great Square of Pegasus can be seen. This square-shaped asterism takes up a large portion of the sky, and consists of the stars: Scheat, Alpheratz, Markab and Algenib.

Tracing these outlines can guide you to objects like galaxies and star clusters. The Hyades, for example, is an open star cluster in the Taurus constellation with evidence of rocky planetary debris. In 2013, Hubble Space Telescope’s Cosmic Origins Spectrograph broke down light into individual components. This observation detected low levels of carbon and silicon – a major chemical for planetary bodies. The Hyades can be found just outside the Winter Circle and is a favorite of both amateur and professional astronomers alike.

Use Star Maps and Star Apps – Using star maps or stargazing apps can help familiarize yourself with the constellations and asterisms of the night sky.

Get Familiar with Constellations – Learning the major constellations and their broader shapes visible each season will make spotting asterisms easier.

Use Celestial Landmarks –Orient yourself by using bright stars, or recognizable constellations. This will help you navigate the night sky and pinpoint specific asterisms. Vega in the Lyra constellation is a great example of this.

Source: National Aeronautics and Space Administration

[spicebiter]

Son of a bitch goddamn idiot brain won't produce the sleepy. It only makes the tired but I need the sleepy. I can't stop the tired without the sleepy. You see what I'm fuckin gettin at?

[moonlight-stalker]

# Dcu x Dp 209

Inspired by cluster of cores by @dcxdpdabbles

After running from Danny's home dimension he ends up saving a heros kid, he ends up in a comma afterwards. The Hero's see him transform into a being with poined ears and white floating hair hidden in his hair are a pair of small horns that looked to be made of ice. He has glowing like freckles all over his body he has a slim furry tail with ice like spikes. The heros assume that he is an alien next to him is what appears to be a human little girl clutching a bag and yelling at them to stay away from her father.

The Hero's learned from the child named Ellie that they had to run away from there home to keep her and her baby siblings safe the bag that Ellie is holding has 7 orbs called cores that are her unborn siblings. Her father had used up the last of his spare energy to save the heroes kid and keep them all safe and can't wake up because he has no spare energy left.

The Hero's did not want to risk moving him to the space station in case the teleporal can cuse him or the cores harm. And they can only get so much information from Ellie in what they need to survive how to care for the cores and what is safe and not safe for them, they do learn that even though he is in a coma he is still feeding the cores and is proble the reason he dose not have enough energy to wake up.

For the time being they moved him to a human hospital with medical personnel from the space station, until they can finish remodeling a safe house to house him and his children in.

Sadly someone hears about a new alien that has baby's and is in a coma in an hospital and was able to sneak in and steal the cores now the Hero's are trying to track the cores down and being them back to their father before something bad happens to them, they hatch, or there father wakes.