Arp 82 / NGC 2535 / NGC 2536
| Designation(s) | Arp 82, NGC 2535, NGC 2536 |
| Object Type(s) | Galaxy |
| Relevant Catalog(s) | All (Chron), Arp, NGC |
| Arp Category | Spiral galaxies with large high surface brightness companions on arms |
| Obs. Lat/Long | 42° 17', 073° 57' |
| Constellation | Cancer |
| Date and Time Observed | 2026-03-04 20:35:00 |
| Instrument | EdgeHD 8" w/f7 reducer-1,422mm FL |
| Camera | Player One Apollo-M Mini |
| Image Details | Up is 180.1 degrees E of N. Transparency: Good. Seeing: Fair. Total integration time was 30m. Exposures 20s@225g, No Filter. Dithered and recentered in SharpCap. No guiding. |
| Description | On the surface this seems like an M51 clone; then you look closer and see a long tidal tail emanating from NGC 2535. Arp remarks: "Arm opposite comp. extremely long." Recent studies have suggested that the "long arm" was caused by a close fly-by, and that the two galaxies are in the middle of a second pass. The interactions stimulated new star formation. Cut short because the full moon was getting higher, and I didn't think additional integration time would help much. |
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