NGC6661
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
From Cambridge , NGC6661 is visible in the morning sky, becoming accessible around 22:15, when it reaches an altitude of 21° above your eastern horizon. It will then reach its highest point in the sky at 03:37, 70° above your southern horizon. It will be lost to dawn twilight around 03:57, 70° above your southern horizon.
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Name
NGC6661
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Object type
Duplicate catalogue entry for NGC6660
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Position
| Right ascension: | 18h34m [3] |
| Declination: | +22°54' [3] |
| Constellation: | Hercules |
| Magnitude: | 11.90 (V) [2] |
| Distance: | 42.1 Mpc 137.2 Mlyr [1] |
Derived quantities
| Absolute mag (V): | -21.22 |
Sources