Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  NGC 2841
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NGC 2841  Tigers Eye A Bright Flocculent Spiral Galaxy, Jerry Yesavage
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NGC 2841 Tigers Eye A Bright Flocculent Spiral Galaxy

Getting plate-solving status, please wait...
NGC 2841  Tigers Eye A Bright Flocculent Spiral Galaxy, Jerry Yesavage
Powered byPixInsight

NGC 2841 Tigers Eye A Bright Flocculent Spiral Galaxy

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Description

Given my weather very few exposures, but interesting bright galaxy I believe suggested by Gary Imm for my humid cloudy site. 

Rotation is 90 DEG off but I think it looks better than the original. 

From Wikipedia:

NGC 2841
is an unbarred spiral galaxy in the northern circumpolar constellation of Ursa Major. It was discovered on 9 March 1788 by German-born astronomer William Herschel. J. L. E. Dreyer, the author of the New General Catalogue, described it as, "very bright, large, very much extended 151°, very suddenly much brighter middle equal to 10th magnitude star".[7] Initially thought to be about 30 million light-years distant, a 2001 Hubble Space Telescope survey of the galaxy's Cepheid variables determined its distance to be approximately 14.1 megaparsecs or 46 million light-years.[4]

The optical size of the galaxy is 8.1′ × 3.5′.[6] This is the prototype for the flocculent spiral galaxy,[5] a type of spiral galaxy whose arms are patchy and discontinuous.[8] The morphological class is SAa, indicating a spiral galaxy with no central bar and very tightly-wound arms. There is no grand design structure visible in the optical band, although some inner spiral arms can be seen in the near infrared.[5] It is inclined by an angle of 68° to the line of sight from the Earth, with the major axis aligned along a position angle of 148°.[5]

The properties of NGC 2841 are similar to those of the Andromeda Galaxy.[4] It is home to a large population of young blue stars, and a few H II regions.[9] The luminosity of the galaxy is =nowrap2×1010 L and it has a combined mass of 1010 M.[6] Its disk of stars can be traced out to a radius of around 228 kly (70 kpc). This disk begins to warp at a radius of around 98 kly (30 kpc), suggesting the perturbing effect of in-falling matter from the surrounding medium.[5] The rotational behavior of the galaxy suggests there is a massive nuclear bulge,[6] with a low-ionization nuclear emission-line region (LINER) at the core; a type of region that is characterized by spectral line emission from weakly ionized atoms.[10] A prominent molecular ring is orbiting at a radius of 7–20 kly (2–6 kpc), which is providing a star-forming region of gas and dust.[6]

The nucleus appears decoupled and there is a counter-rotating element of stars and gas in the outer parts of the nucleus, suggesting a recent interaction with a smaller galaxy.[6] Four supernovae have been observed in NGC 2841: SN 1912A (type Ia, mag. 13),[11] SN 1957A (type Ia, mag. 14),[12] SN 1972R (mag. 16),[13] and SN 1999by (type Ia, mag. 15).[14] =MsoNormal

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