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Contains:  NGC 7241
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NGC 7241, 





    
        

            Gary Imm
NGC 7241

NGC 7241

Technical card

Resolution: 2923x2032

Dates:Aug. 29, 2019Aug. 30, 2019

Frames:
Astrodon Blue 31mm Gen2 I-Series: 30x120" (gain: 111.00) -12C bin 1x1
Astrodon Green 31mm Gen2 I-Series: 30x120" (gain: 111.00) -12C bin 1x1
Astrodon Lum 31mm Gen2 I-Series: 60x120" (gain: 111.00) -12C bin 1x1
Astrodon Red 31mm Gen2 I-Series: 30x120" (gain: 111.00) -12C bin 1x1

Integration: 5.0 hours

Avg. Moon age: 14.26 days

Avg. Moon phase: 0.68%

Astrometry.net job: 2922391

RA center: 333.955 degrees

DEC center: 19.232 degrees

Pixel scale: 0.494 arcsec/pixel

Orientation: 275.523 degrees

Field radius: 0.244 degrees

Data source: Backyard

Description

This is a wonderful pair of rarely imaged galaxies located 50 million light years away in the constellation of Pegasus at a declination of +19 degrees. Both galaxies span about 4 arc-minutes in our apparent view, which corresponds to a diameter of 60,000 light years.

The top galaxy, NGC 7241, is fascinating because of the bright blue star clusters which appear in slightly odd locations above or in front of the core. Many sources talk about these being star clusters of the galaxy, as one would normally expect, although the positioning of the clusters is unusual. However, a recent 2015 study used kinematic data to confirm that these blue clusters do not belong to NGC 7241, at least not yet. These clusters belong to a faint dwarf companion to NGC 7241. This companion galaxy is in the process of merging with the larger galaxy and appears directly along our line of sight to the core of NGC 7241.

The bottom galaxy, UGC 11964, is a flat galaxy that doesn't appear to be interacting with NGC 7241 despite the fact that they are similar distances away.

Comments

Author

GaryI
Gary Imm
License: None (All rights reserved)
1512
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NGC 7241, 





    
        

            Gary Imm