| Designation(s) | Arp 290, IC 195, IC 196 |
| Object Type(s) | Galaxy |
| Relevant Catalog(s) | All (Chron), Arp, NGC |
| Arp Category | Unclassified double galaxies |
| Obs. Lat/Long | 42° 17', 073° 57' |
| Constellation | Eridanus |
| Date and Time Observed | 2025-11-22 22:28:00 |
| Instrument | EdgeHD 8" w/f7 reducer-1,422mm FL |
| Camera | Player One Apollo-M Mini |
| Image Details | Up is 268.3 degrees E of N. Transparency: Good. Seeing: Fair. Total integration time was 30m 15s. Exposures 15s@225g, No Filter. Dithered and recentered in SharpCap. No guiding. |
| Description | Arp 304 consists of two galaxies NGC 1241 and NGC 1242, left to right and a double star to the southeast, NGC 1243. The two galaxies were first seen by William Herschel. John Herschel, unable to see 1242 recorded the double star NGC 1243. Dreyer saw all three but recorded the double star as a nebula. Arp didn't seem too fussed as he left no remarks. The only peculiar structure seems to be a slightly enlarged arm on NGC 1241 pulled away in the direction of NGC 1242. |
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