| Designation(s) | Arp 285, NGC 7714, NGC 7715 |
| Object Type(s) | Galaxy |
| Relevant Catalog(s) | All (Chron), Arp, NGC |
| Arp Category | Galaxies with infall and attraction |
| Obs. Lat/Long | 42° 17', 073° 57' |
| Constellation | Pegasus |
| Date and Time Observed | 2023-10-10 22:30:32 |
| Instrument | 8" EdgeHD SCT |
| Camera | ASI294mc-Pro |
| Image Details | Up is 271.6 degrees E of N. Total integration time was 17m. Exposure 30s@305g, darks subtracted, UV/IR Cut Filter, dithered and recentered in SharpCap. Darks subtracted, no flats. Dithered and recentered in SharpCap. No guiding.. |
| Description | There are two obvious galaxies in the frame: NGC 7714 is a distorted, more or less round, spiral galaxy in the center of the image that appears to be attracting stellar material from above and below. Below, the new material deformed a large spiral arm, out- and downwards. 7714 has a very bright galactic nucleus and the rest of the spiral disk is bright and well formed. NGC 7715 is much less bright, with a dim center. We appear to be viewing it edge-on, distorted into an integral sign shape that runs right to the edge (and behind?) 7714. The fact that 7714 is brighter and more intact suggests it is the dominant galaxy of the two. I'm wondering if the bright spot just below 7714 is a dwarf companion also in the process of "infall". Arp doesn't mention it in his notes, so may not be likely. Still it does have a suspiciously companion-like structure. |
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