| Designation(s) | Arp 262, UGC 12856 |
| Object Type(s) | Galaxy |
| Relevant Catalog(s) | All (Chron), Arp |
| Arp Category | Galaxies with irregular clumps |
| Obs. Lat/Long | 42° 17', 073° 57' |
| Constellation | Pegasus |
| Date and Time Observed | 2024-10-28 22:53:00 |
| Instrument | EdgeHD 8" w/f7 reducer-1,422mm FL |
| Camera | Player One Apollo-M Mini |
| Image Details | Up is 358.1 degrees E of N. Total integration time was 22m 45s. Exposures 15s@300g, UV/IR Cut Filter. Darks subtracted, no flats. Dithered and recentered in SharpCap. No guiding. |
| Description | Arp classified this object into "Galaxies with Irregular Clumps". His remarks add, "Some resolution into knots." Both statements are true enough: on the N (top) end it does resolve into knots. It's all a bit surrealistic, like Salvador Dali's clock in The Persistence of Time. While I don't understand the details, Arp was personally invested in the idea that galaxies didn't merge in order to explain interactions he perceived between galaxies of different red shifts. From the little I've read, the argument swung on the "probabilities" of distant galaxies aligning visually by chance. This strikes me as deeply flawed, since there's a selection bias working in the other direction: it's particularly odd in cases like this observation where the visual evidence of merger seems so compelling. In the middle, there's a nearly intact spiral. At the S end, a high-brightness spiral dwarf appears to be in the process of merging, moving in at a more extreme NE to SE tilt. The bend in the middle is a reaction to the relative motion.
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