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Robert Chozick | all galleries >> Galleries >> Deep Sky Images > M81 and Holmberg IX Galaxies in Ursa Major
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January 28-29, 2022

M81 and Holmberg IX Galaxies in Ursa Major

Paducah Skies Observatory

Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a spiral galaxy about 12 million light-years away in the constellation Ursa Major. M81 is one of the most striking examples of a grand design spiral galaxy, with near perfect arms spiraling into the very center. Because of its proximity to Earth, its large size, and its active galactic nucleus (which harbors a supermassive black hole) Messier 81 is a popular galaxy to study in professional astronomy research.

Above M81 is Holmberg IX, a dwarf irregular galaxy and a satellite galaxy of M81, located in the constellation of Ursa Major. The galaxy is named after Erik Holmberg who first described it. Based on the observed age distribution of stars it contains it is thought to have formed within the last 200 million years making it the youngest nearby galaxy. It is also home to one of two yellow supergiant eclipsing binary systems. (Wikipedia)

Paducah Skies Observatory is a private observatory SW of Paducah, TX. It sits on 45 acres of native Texas grasslands and mesquite trees. The skies are 21.99 on the light pollution scale (almost Bortle 1).

Astro-Tech AT8RC Carbon Fiber Ritchey-Chretien
Astro Tech Field Flattener
ZWO ASI2600MC Pro CMOS One Shot Color Camera
Baader Vario Finder mounted as Guidescope
ZWO ASI178MM Guide Camara
Astro Physics 900 GTO mount

52 exp 5 min each (100 gain/20 offset)

Guided with PHD-2
Captured with The Sky X
Pre-processed and Stacked in Nebulosity 4
Post Processed in Pixinsight and Photoshop full exif


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