NGC4725
This group of galaxies in Coma Berenices includes an interacting pair, NGC4725 (near center) and NGC4747 (lower left). At an approximate 45 Mly distance, this pair has experienced tidal interaction that produced a tail on NGC4747 and a burst of star formation in NGC4725. This interaction is also potentially responsible for the active galactic nucleus (AGN) of NGC4725 (a Seyfert galaxy) and its diffuse and dramatic single spiral arm. The small galaxy near the top of the field is NGC4712, a background galaxy approximately 200 Mly distant.
Imaging telescope or lens:Stellarvue SV105 APO
Imaging camera:QSI 683 wsg-8
Mount:Orion Atlas EQ-G (belt mod) + EQDIR
Guiding camera:Starlight Xpress Loadestar 2
Focal reducer:Stellarvue 0.8X Reducer/Flattener
Software:Main Sequence Software Seqence Generator Pro, PixInsight , Photoshop CC, PhD Guiding 2
Resolution: 3364x2691
Dates: March 18, 2018, March 19, 2018, March 25, 2018, March 26, 2018
Frames:
Baader Planetarium B 1.25": 31x300" -20C bin 1x1
Baader Planetarium G 1.25": 25x300" -20C bin 1x1
Baader Planetarium L 1.25": 78x300" -20C bin 1x1
Baader Planetarium R 1.25": 36x300" -20C bin 1x1
Integration: 14.2 hours
Darks: ~50
Flats: ~50
Bias: ~50
Sky Map
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