# M 107 (NGC 6171)

M 107 (NGC 6171) is a globular cluster in the constellation Ophiuchus, magnitude 7.9, 10′ across.

A loose globular cluster in Ophiuchus, easy to resolve in medium apertures; Helen Sawyer Hogg added it to the Messier list in 1947.

## When and where to see it

It is best placed in the evening sky around June, when it crosses the meridian at about 10 pm local time (around midnight in May). It can be seen from everywhere south of 77°N and never sets south of 77°S.

At its highest it stands 27° up from 50°N, 42° up from 35°N, 77° up from the equator, 68° up from 35°S.

## Facts

- Type: Globular cluster
- Constellation: Ophiuchus
- Designations: NGC 6171, Crucifix Cluster
- Magnitude: 7.9
- Apparent size: 10′
- Position: RA 16h 32.5m, Dec −13° 3′ (J2000)

Open AstroPilot to see when M 107 (NGC 6171) is highest tonight from your location, how easy it is with your telescope or binoculars, and an eyepiece view. https://astropilot.space/object/M107