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View Full Version here: : New discovery: the M31 OIII emission arc


Stephane
10-01-2023, 05:47 PM
I was amazed that this oxygen emission arc has gone unnoticed up until this point despite M31 being the most photographed galaxy and despite the arc becoming noticeable at just 10+ hours of oxygen data.

I found both these videos just fascinating.

Team Strottner-Drechsler: https://m.youtube.com/watch?v=TEMXss1Qo4E

Bray Falls: https://m.youtube.com/watch?v=H9sqPHiCypE

I wonder what other incredible discoveries await, even near common targets that we shoot.

Crater101
11-01-2023, 07:51 PM
Hadn't heard this, thanks for the links. It's discoveries like this that help make this hobby what it is. :thumbsup:

AdamJL
11-01-2023, 08:54 PM
Quite a few discoveries lately by amateurs who just seem to be doing super long exposures to pull out unseen details. I love it!

The Goblet one was another, a couple of years back.

https://www.astrobin.com/s9vmx1/0/

Stephane
13-01-2023, 02:44 PM
“Cuiv the lazy geek” also posted a video on this discovery: https://m.youtube.com/watch?v=gDaQwS2Dm8Y