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Object: ARP 99 (NGC 7550 group, Hickson 93) |
Date: 2015 September 9
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| Peculiarity: Spiral with elliptical galaxy companion on arms. | |
| Constellation: Pegasus | Time & altitude: 21.05 UT 44º |
| Catalogue data: | Seeing (5 high): 3/5 |
| R.A: 23h 15m | Transparency (5 high): 2/5 |
| Dec: +19º 01 | Telescope: 0.5m f4.1 Dob. |
| Magnitude: 12.2 | Eyepiece: 8mm Ethos x260 |
| Galaxy size (mins): 1.4×1.2 | Filters: Lumicon Deep Sky. |
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Notes: Strong E winds drawing polluted air in from France/Germany. The dirty air is aggravating light pollution. Milky Way only just visible in the zenith. Three galaxies in this Arp object. NGC 7550 is round with a non-stellar core. NGC 7549 (13.7m) is an inconspicuous oval. NGC 7547 (14.7m) is a tiny haze, maybe round, maybe oval. |
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