Arp 99 (Galaxy cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , Arp 99 is visible in the dawn sky, rising at 01:39 (EDT) – 3 hours and 50 minutes before the Sun – and reaching an altitude of 26° above the eastern horizon before fading from view as dawn breaks at around 04:12.
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Name
Arp 99
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Object type
Galaxy cluster
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Position
| Right ascension: | 23h15m [1] |
| Declination: | +18°59' [1] |
| Constellation: | Pegasus |
| Magnitude: | 12.20 (V) [1] 10.90 (R) [2] |
Sources