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APOD: Seagull to Sirius (2016 Dec 15)
Posted: Thu Dec 15, 2016 5:07 am
by APOD Robot
Seagull to Sirius
Explanation: This broad, beautiful mosaic spans almost 20 degrees across planet Earth's sky. The
nebula-rich region lies near the edge of the Orion-Eridanus supperbubble, filled with looping, expanding shells of gas and dust embedded in molecular clouds near the plane of the Milky Way Galaxy. Recognizable at the left is the expansive
Seagull Nebula, composed of emission nebula NGC 2327, seen as the seagull's head, with the more
diffuse IC 2177 as the wings and body. Some 3,800 light-years away, the wings of the Seagull Nebula spread about 240 light-years, still within our
local spiral arm. The bluish light of
Sirius, alpha star of Canis Major and brightest star in the night, easily dominates the scene at right but shines from a distance of only 8.6 light-years. Study the
big picture and you should also be rewarded with star cluster
Messier 41, also known as NGC 2287, not to mention the mighty
Thor's Helmet.
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Re: APOD: Seagull to Sirius (2016 Dec 15)
Posted: Thu Dec 15, 2016 12:31 pm
by Jimbo Jones
Supperbubble? What's for Dinner?
Re: APOD: Seagull to Sirius (2016 Dec 15)
Posted: Thu Dec 15, 2016 1:30 pm
by ignacio_db
Bravo, Rogelio! Beautiful composition!
Re: APOD: Seagull to Sirius (2016 Dec 15)
Posted: Thu Dec 15, 2016 2:13 pm
by Ann
This is a fantastic image! Thanks, Rogelio!
Ann
Re: APOD: Seagull to Sirius (2016 Dec 15)
Posted: Thu Dec 15, 2016 3:05 pm
by neufer
http://www.reuters.com/article/us-usa-albatross-idUSKBN14308P wrote:
<<Wisdom, a Laysan albatross, at least 66 years old and the world's oldest known breeding wild bird incubates her egg in Midway Atoll National Wildlife Refuge and Battle of Midway National Memorial, Hawaii, U.S. on December 3, 2016. Courtesy Kristina McOmber/Kupu... REUTERS>>
Re: APOD: Seagull to Sirius (2016 Dec 15)
Posted: Thu Dec 15, 2016 4:34 pm
by RJN
Jimbo Jones wrote:Supperbubble?
Thanks! Fixed it. - RJN
Re: APOD: Seagull to Sirius (2016 Dec 15)
Posted: Thu Dec 15, 2016 5:07 pm
by Visual_Astronomer
Visually, Thor's Helmet is the most interesting object in this beautiful panorama. With narrow-band filters, one can see quite a lot of detail contained within its eponymous shape. It is one of my favourite winter targets.