astromana

[astromana]

Northern Lights

Edmonton, AB, Canada

11th August, 2024

Photography by astromana

[astromana]

Northern Lights, "phoenix"

Edmonton, AB, Canada

11th August, 2024

Photography by astromana

[astromana]

Northern Lights

Edmonton, AB, Canada

11th August, 2024

Photography by astromana

[astromana]

Northern Lights

Edmonton, AB, Canada

11th August, 2024

Photography by astromana

[astromana]

Northern Lights

Edmonton, AB, Canada

11th August, 2024

Photography by astromana

[astromana]

Stunning image of ESA rocket, Ariane 6, captured by talented photographers S. Corvaja and M. Pédoussaut

[astromana]

Stunning image of ESA rocket, Ariane 6, captured by talented photographers S. Corvaja and M. Pédoussaut

[astromana]

Stunning image of ESA rocket, Ariane 6, captured by talented photographers S. Corvaja and M. Pédoussaut

[astromana]

Stunning image of ESA rocket, Ariane 6, captured by talented photographers S. Corvaja and M. Pédoussaut

[astromana]

Stunning images of Ariane 6 captured by talented photographers S. Corvaja and M. Pédoussaut

[astromana]

"Ghosts in the Sky" // Francesco Meschia

The nebula at the bottom is the Ghost Nebula, Sh2-136.

[astromana]

Neat! Thanks for answering this!

Can you show me how you calculated that? Would love to learn!

Question:

Hello! I rarely do this on here, but a friend and I have been struggling with finding any good research on the topic now that we've graduated and no longer have access to science journals through university, so thought I'd ask here!

Common sense dictates that at sunset the eastern horizon will get dark before the western horizon. But do we know exactly, standing in any one position on earth, what the time difference is? How much faster does the eastern horizon get completely dark before the western horizon? Assume latitude: 24° N

P.s.: we know the sun doesn't rise or set true east or west, which is why I use the terms eastern and western horizon very loosely.

[astromana]

Thanks for such a detailed response.

I'm actually asking about the eastern horizon (opposite to where the sun sets in the west). And I'm only asking about the time difference between the darkness observed in the east compared to the darkness in the west.

How much sooner does the eastern horizon experience the 3 stages of twilight as compared to the western horizon?

Question:

Hello! I rarely do this on here, but a friend and I have been struggling with finding any good research on the topic now that we've graduated and no longer have access to science journals through university, so thought I'd ask here!

Common sense dictates that at sunset the eastern horizon will get dark before the western horizon. But do we know exactly, standing in any one position on earth, what the time difference is? How much faster does the eastern horizon get completely dark before the western horizon? Assume latitude: 24° N

P.s.: we know the sun doesn't rise or set true east or west, which is why I use the terms eastern and western horizon very loosely.

[astromana]

The sky near the Crescent Nebula (NGC 6888, upper right) // ArvitZ

[astromana]

The Great Pegasus Cluster, M15 // Jim Raskett

[astromana]

Question:

Hello! I rarely do this on here, but a friend and I have been struggling with finding any good research on the topic now that we've graduated and no longer have access to science journals through university, so thought I'd ask here!

Common sense dictates that at sunset the eastern horizon will get dark before the western horizon. But do we know exactly, standing in any one position on earth, what the time difference is? How much faster does the eastern horizon get completely dark before the western horizon? Assume latitude: 24° N

P.s.: we know the sun doesn't rise or set true east or west, which is why I use the terms eastern and western horizon very loosely.

[astromana]