| Designation(s) | Arp 130, IC 5378 |
| Object Type(s) | Galaxy |
| Relevant Catalog(s) | All (Chron), Arp, IC |
| Arp Category | Elliptical galaxies close to and perturbing spiral galaxies |
| Obs. Lat/Long | 42° 17', 073° 57' |
| Constellation | Pegasus |
| Date and Time Observed | 2024-11-03 20:23:00 |
| Instrument | EdgeHD 8" w/f7 reducer-1,422mm FL |
| Camera | Player One Apollo-M Mini |
| Image Details | Up is 290.4 degrees E of N. Total integration time was 40m 15s. Exposures 15s@300g, UV/IR Cut Filter. Darks subtracted, no flats. Dithered and recentered in SharpCap. No guiding. |
| Description | Based on Arp's category description, it's clear that Arp felt IC 5738 is actually two galaxies: an elliptical galaxy (left/lower) perturbing a spiral galaxy (right/upper). It seems likely that when initially observed as an entry in the IC, the spiral component of the pair was not resolved. Even with the benefit of CMOS cameras and stacking, distinguishing an elliptical and spiral component is tough. Arp's image, benefiting from the resolution supported by a 200" aperture plus a photographic plate does support that distinction. Of course, it seems highly likely that we're observing a merger in mid-process. |
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