NGC 925 is a barred spiral galaxy located about 30 million light-years away in the constellation Triangulum. German-British astronomer William Herschel discovered this galaxy on 13 September 1784.
The morphological classification of this galaxy is SB(s)d, indicating that it has a bar structure and loosely wound spiral arms with no ring. The spiral arm to the south is stronger than the northern arm, with the latter appearing flocculent and less coherent. The bar is offset from the center of the galaxy and is the site of star formation all along its length. Both of these morphological traits—a dominant spiral arm and the offset bar—are typically characteristics of a Magellanic spiral galaxy. The galaxy is inclined at an angle of 55° to the line of sight along a position angle of 102°.
Object Designations: NGC 925
Also known as:
Constellation: Triangulum
Object Type: barred spiral galaxy
Distance: 30 million light-years away
Magnitude: 10.7
Discovery: William Herschel in 1784
This final image is:
75 – 5 minute subs at 100 gain – no filter – Over 6 hours of integration (2 nights)
I processed the images using Pixinsight using:
Blink to clear out low quality images
Weighted Batch Balance
SpectroPhotometricCalibration
AutomaticBackgroundExtractor
BlurExterminator
NoiseExterminator
GeneralizedHyperbolicStrectch
ColorCalibration on both versions
StarXTerminator
Curves on both versions using other version as mask
Pixmath to put stars back with both images.
