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Contains:  NGC 7479
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NGC 7479 Spiral Galaxy, 





    
        

            Jerry Macon
NGC 7479 Spiral Galaxy

NGC 7479 Spiral Galaxy

Technical card

Resolution: 2200x1600

Dates:Nov. 7, 2019Nov. 8, 2019

Frames:
Astrodon Gen 2 L 36mm: 168x120" (gain: 99.00) -12C bin 1x1
Astrodon Gen 2 RGB 36mm: 166x120" (gain: 99.00) -16C bin 1x1

Integration: 11.1 hours

Avg. Moon age: 10.56 days

Avg. Moon phase: 81.17%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 3057288

RA center: 23h 4' 57"

DEC center: +12° 19' 8"

Pixel scale: 0.701 arcsec/pixel

Orientation: 177.939 degrees

Field radius: 0.265

Locations: Dark Star Observatory, Taos, New Mexico, United States

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

Images from the following two scopes (piggybacked) contributed to this image:
AG12+ASI1600MM at .70 asec/pix (RGB)
TV127is+ASI183MM at .75 asec/pix. (L)
They were all registered to the best R image taken on the AG12.
Using L from the TV NP127is refractor effectively eliminates the spikes from the AG12.
This image was unguided.

NGC7479 (also known as Caldwell 44) is a barred spiral galaxy about 105 million light-years away in the constellation Pegasus. It was discovered by William Herschel in 1784. Supernovae SN 1990U and SN2009jf occurred in NGC 7479. NGC 7479 is also recognized as a Seyfert galaxy and a Liner undergoing starburst activity not only on the nucleus and the outer arms, but also across the bar of the galaxy, where most of the stars were formed in the last 100 million years. Polarization studies of this galaxy indicate that it recently underwent a minor merger and that it is unique in the radio continuum, with arms opening in a direction opposite to the optical arms. This feature, along with the asymmetrical arms of the galaxy and the intense star formation activity are attributed to a merger with a smaller galaxy. This galaxy is similar in both size and morphology to the barred spiral NGC 1300.
(Wikipedia)

Comments

Author

jmacon
Jerry Macon
License: Attribution Creative Commons
3543
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Revisions

  • NGC 7479 Spiral Galaxy, 





    
        

            Jerry Macon
    Original
  • Final
    NGC 7479 Spiral Galaxy, 





    
        

            Jerry Macon
    B

Sky plot

Sky plot

Histogram

NGC 7479 Spiral Galaxy, 





    
        

            Jerry Macon