The Omega Nebula (M17)
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 12 arcminutes across.
From Cambridge , the Omega Nebula is visible in the morning sky, becoming accessible around 01:44, when it reaches an altitude of 21° above your south-eastern horizon. It will then reach its highest point in the sky at 04:14, 31° above your southern horizon. It will be lost to dawn twilight around 04:16, 31° above your southern horizon.
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Name
The Omega Nebula (M17)
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Object type
Open cluster
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Other names
Position
| Right ascension: | 18h20m [3] |
| Declination: | -16°10' [3] |
| Constellation: | Sagittarius |
| Magnitude: | 6.00 (V) [4] 6.00 (B) [3] |
| Distance: | 1.3 kpc 4.2 klyr [2] |
| B-V Color (mag): | -1.00 |
Derived quantities
| Absolute mag (V): | -4.57 |
Sources