| Designation(s) | Arp 169, NGC 7236, NGC 7237 |
| Object Type(s) | Galaxy |
| Relevant Catalog(s) | All (Chron), Arp, NGC |
| Arp Category | Galaxies with diffuse counter-tails |
| Obs. Lat/Long | 42° 17', 073° 57' |
| Constellation | Pegasus |
| Date and Time Observed | 2024-10-27 21:24:00 |
| Instrument | EdgeHD 8" w/f7 reducer-1,422mm FL |
| Camera | Player One Apollo Mini |
| Image Details | Up is 99.1 degrees E of N in positive views. Approximately 270 degrees east of N in comparison, inverted view. Total integration time was 23m 15s. Exposures 15s@300g, UV/IR Cut Filter. Darks subtracted, no flats. Dithered and recentered in SharpCap. No guiding. |
| Description | Arp's remarks describe "Faint diffuse plumes coming away from two galaxies". Arp 169 consists of three relatively bright galaxies, lined up, all sharing a diffuse plume and presumably merging: lenticular galaxy NGC 7236, an eliptical galaxy NGC 7237, and a small elliptical: NGC 7237C. 7236's plume is extended to the Northeast, terminating at what appears to be a tiny dwarf galaxy. while 7237's even fainter plume appears extend to another tiny galaxy to the SW. |
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