| Designation(s) | Arp 233, UGC 5720, HARO 2 |
| Object Type(s) | Galaxy |
| Relevant Catalog(s) | All (Chron), Arp |
| Arp Category | Galaxies with the appearance of fission |
| Obs. Lat/Long | 42° 17', 073° 57' |
| Constellation | Ursa Major |
| Date and Time Observed | 2024-02-21 00:00:35 |
| Instrument | 8" EdgeHD SCT |
| Camera | ASI294mc-Pro |
| Image Details | Up is 275.1 degrees E of N. Total integration time was 18m. Exposure 30s@305g, UV/IR Cut Filter. Darks subtracted, no flats. Dithered and recentered in SharpCap. No guiding. |
| Description | This is a tiny object which stresses the limits of my 8" SCT with 294 sensor. The featured image reproduced here is only 158 pixels in the original capture where it appears as an elongated blob. Given that Arp described this as a galaxy "with the appearance of fission", I processed the SharpCap .png in Affinity Photo to emphasize the asymmetry within the capture. After processing, a slight elongation at approximately 190 degrees relative-rotation is more evident. Nevertheless, of the 23 Arp Galaxies so categorized (Arp 233-256), this is the most "normal" looking and least obvious fissioning galaxy in the series, even with the benefit of the 200" Hale Telescope's resolution. |
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