M81 Bode's Galaxy - a photo on Flickriver

M81 Bode's Galaxy

            This is an image I took on 13 April 2022 of M81 (known as NGC 3031 or Bode's Galaxy).  I have taken pictures of this galaxy before but this is the best result I have had.

NASA reports that M81 is one of the brightest galaxies in the night sky. It is located about 12 million light-years from Earth in the constellation Ursa Major and has a diameter of 90,000 light years (slightly smaller than our Milky Way).

The galaxy’s spiral arms, which wind all the way down into its nucleus, are made up of young, bluish, hot stars formed in the past few million years. They also host a population of stars formed in an episode of star formation that started about 600 million years ago. Ultraviolet light from hot, young stars is fluorescing the surrounding clouds of hydrogen gas. A number of sinuous dust lanes also wind all the way into the nucleus of M81.

The galaxy’s central bulge contains much older, redder stars. It is significantly larger than the Milky Way’s bulge. A black hole of 70 million solar masses resides at the centre of M81 and is about 15 times the mass of the Milky Way’s central black hole.

Telescope: Celestron C11A-XLT Schmidt Cassegrain OTA with 0.63x flattener/reducer. 
Mount: SkyWatcher EQ6-R Pro 

Controller: ZWO ASIAIR Pro
Main Camera: ZWO ASI533MC Pro at -10C
Filter: ZWO UV/IR filter
Focuser: ZWO EAF
Guide Camera: ZWO ASI174MM Mini guidecam
Guide via:  ZWO OAG

Stacked from:
Lights 75 at 180 seconds, gain 101, temp -10C
Darks 30 at 180 seconds, gain 101, temp -10C
Flats 30 at 20.0ms, gain 101, temp -10C
Dark Flats 30 at 20.0ms, gain 101, temp -10C

Bortle 4 sky. 
Integrated the saved frames in Astro Pixel Processor and adjusted in Photoshop CS4.

   

Taken on: April 14, 2022

Tags:

M81

NGC3031

galaxy

zwo

asiair

pro

asi533mc

uvir

eaf

oag

asi174mm

celestron

c11

c11a-xlt

skywatcher

eq6r

astrophotography

deep

sky

messier

astronomy

night « less

Sets appears in: • Astronomy • Messier Objects more » • Galaxies « less

Groups appears in: • Astrophotography - Astronomy - Astrophysics • astrometry more » • Astronomers Talk • BBC Sky at Night and Stargazing Live • Astrophoto with Schmidt-Cassegrain telescopes « less

Camera: notAvailable, 13500 sec (more info) (hide info)

Camera:	notAvailable
Exposure Time:	13500
Color Space:	Uncalibrated
Software:	Adobe Photoshop CS4 Windows
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