The open cluster M 18
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 10 arcminutes across.
Finder chart
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From Cambridge , M 18 is visible in the dawn sky, rising at 02:09 (EST) and reaching an altitude of 23° above the south-eastern horizon before fading from view as dawn breaks around 05:05.
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|
Name
M 18
|
Object Type
Open Cluster
|
Position
| Constellation: | Sagittarius |
| Magnitude: | 6.90 (V) [3] 7.24 (B) [2] |
| B-V Color (mag): | 0.34 |
| Right ascension: | 18h19m [2] |
| Declination: | -17°06' [2] |
| Distance: | 1.3 kpc 4.2 klyr [1] |
Derived Quantities
| Absolute mag (V): | -3.66 |
Visibility from Cambridge
All times shown in Cambridge local time.