| Object Type(s) | Galaxy |
| Relevant Catalog(s) | All (Chron), Arp, NGC |
| Arp Category | Galaxies with concentric rings |
| Obs. Lat/Long | 42° 17', 073° 57' |
| Constellation | Andromeda |
| Date and Time Observed | 2024-12-26 19:39:00 |
| Instrument | EdgeHD 8" w/f7 reducer-1,422mm FL |
| Camera | Player One Apollo-M Mini |
| Image Details | Up is 277.2 degrees E of N. Total integration time was 30m. Exposures 15s@300g, UV/IR Cut Filter. Darks subtracted, no flats. Dithered and recentered in SharpCap. No guiding. |
| Description | NGC 507 is a large and relatively bright galaxy where the galactic disc forms discrete rings of diminishing brightness as you move away from the core. Arp remarks: "Circular or near circular rings of small density difference." This is categorized as a lenticular galaxy: more structure than a typical elliptical galaxy, but lacking the arm structure for a spiral. If you examine all of the galaxies so categorized in the Atlas (227-231), the first three (227-229) all depict a pair of galaxies, with a large, central lenticular galaxy. Confusingly, the other two (230-31) depict polar ring structures within a single, lenticular framework. |
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