Abell cluster 2140 (Galaxy cluster)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
From Cambridge , Abell cluster 2140 is visible in both the dusk and dawn skies. In the evening, it will become visible at around 17:26 (EST), 30° above your north-western horizon, as dusk fades to darkness. It will then sink towards the horizon, becoming tricky to observe after 18:30 when it dips 21° above your north-western horizon. At 04:26, it will return to an altitude of 21° above your north-eastern horizon, and reach an altitude of 30° before fading from view as dawn breaks at around 05:31.
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Name
Abell cluster 2140
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Object type
Galaxy cluster
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Position
| Right ascension: | 15h56m [1] |
| Declination: | +48°39' [1] |
| Constellation: | Hercules |
| Magnitude: | 17.50 (R) [1] |