M 10 (NGC 6254)
M 10 (NGC 6254) is a globular cluster in the constellation Ophiuchus, magnitude 6.6, 15′ across.
A bright globular cluster in Ophiuchus, about 14,000 light-years away. Binoculars show it in the same sweep as its near-twin M12, 3° away, and a 6-inch telescope resolves its outskirts.
When and where to see it
It is best placed in the evening sky around July, when it crosses the meridian at about 10 pm local time (around midnight in June). It can be seen from everywhere south of 86°N and never sets south of 86°S.
At its highest it stands 36° up from 50°N, 51° up from 35°N, 86° up from the equator, 59° up from 35°S.
Facts
- Type
- Globular cluster
- Constellation
- Ophiuchus
- Designations
- NGC 6254
- Magnitude
- 6.6
- Apparent size
- 15′
- Position
- RA 16h 57.2m, Dec −4° 6′ (J2000)
Open AstroPilot to see when M 10 (NGC 6254) is highest tonight from your location, how easy it is with your telescope or binoculars, and an eyepiece view.