Arp 99 (Galaxy cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From South El Monte , Arp 99 is visible in the evening sky, becoming accessible around 19:53 (PDT), 30° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 00:17, 74° above your southern horizon. It will continue to be observable until around 05:20, when it sinks below 21° above your western horizon.
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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