| Object: ARP 157 (NGC 520) | Date: 2016 December 4 |
| Peculiarity: Disturbed with interior absorption. | |
| Constellation: Pisces | Time & altitude: 21.20 UT 41º |
| Catalogue data: | Seeing (5 high): 4/5 |
| R.A: 1h 25m | Transparency (5 high): 3/5 |
| Dec: +3º 50 | Telescope: 0.5m f4.1 Dob. |
| Magnitude: 11.5 | Eyepiece: 8mm Ethos x260 |
| Galaxy size (mins): 4.5 x 1.8 | Filters: Lumicon Deep Sky |
|
Notes: The appearance of Arp 157 reminded me of Arp 158. It is fan shaped, aligned NW-SE with the tip pointing NW. The tip and N edge are well defined and brighter than the S edge. There is a companion galaxy in the field but it is 18th magnitude so well beyond my equipment. |
|