Contains:NGC 3949, NGC 3928, NGC 3906, NGC 3896, NGC 3893, The star χUMa
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The Miniature Spiral Galaxy NGC 3982 and Friends, 




    

        Randal Healey
The Miniature Spiral Galaxy NGC 3982 and Friends

The Miniature Spiral Galaxy NGC 3982 and Friends

Technical card

Resolution: 3068x2205

Dates: April 13, 2018

Frames:
Astrodon BLUE 36mm - Gen2 E-Series Tru-Balance: 10x300" -20C bin 1x1
Astrodon GREEN 36mm - Gen2 E-Series Tru-Balance: 9x300" -20C bin 1x1
Astrodon LUM 36mm - Gen2 E -Series Tru-Balance: 16x600" -20C bin 1x1
Astrodon RED 36mm - Gen2 E-Series Tru-Balance: 10x300" -20C bin 1x1

Integration: 5.1 hours

Darks: ~50

Flats: ~30

Bias: ~75

Avg. Moon age: 26.91 days

Avg. Moon phase: 7.55%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 2012403

RA center: 177.627 degrees

DEC center: 48.340 degrees

Pixel scale: 2.224 arcsec/pixel

Orientation: 198.608 degrees

Field radius: 1.167 degrees

Locations: Healey "Utahpia" Observatory, Kaysville, Utah, United States

Description

NGC 3982 is a galaxy that spans about 30,000 light-years, about one-third of the size of our Milky Way galaxy. The galaxy is receding from us at about 1109 km/s. The galaxy is a typical spiral galaxy, similar to our Milky Way. It harbors a supermassive black hole at its core and has massive regions of star formation in the bright blue knots in the spiral arms. Supernovae are likely to be found within these regions.

NGC 3982 has a high rate of star birth within its arms, which are lined by pink star-forming regions of glowing hydrogen and newborn blue star clusters. Its bright nucleus is home to older populations of stars, which grow more densely packed toward the center. The galaxy also has active star formation in the circumnuclear region.

NGC 3982 is a member of the M109 Group, a group of galaxies located in the constellation Ursa Major that may contain over 50 galaxies. The group was named after the brightest galaxy in the group, the spiral galaxy M109.

Astronomers are interested in studying this galaxy as it can help in measuring extragalactic distances. It is helpful because it possesses two tools used to estimate astronomical distances: a stellar explosion, or supernova; and Cepheid variable stars.

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RandalHealey
Randal Healey
License: None (All rights reserved)
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The Miniature Spiral Galaxy NGC 3982 and Friends, 




    

        Randal Healey