Globular Cluster · Aquarius

M72 NGC 6981

Magnitude
9.3
Season
Summer
Difficulty
Moderate
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M720.0° field0° rotation
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Imaging reference
NGC 6981 (M72) Globular Cluster

Observer's guide

About NGC 6981

NGC 6981 (M72) is catalogued as a globular cluster in Aquarius. Its J2000 position is RA 20:53:27.91, Dec -12:32:13.4, corresponding to 313.3654 degrees RA and -12.5373 degrees Dec. The local catalogue places it about 52,800 light-years away. Its referenced angular extent is approximately 5.9 by 5.9 arcminutes.

Observing tips

StarWatchr rates this as a moderate target at magnitude 9.3. It is associated with summer observing, with midnight placement typically strongest around July. From 52 degrees north its theoretical meridian altitude is about 25.5 degrees; local horizons and the live altitude chart determine the practical window.

Because it is faint, use a larger aperture where possible, avoid bright Moon conditions, and use averted vision.

What to expect

The SIMBAD classification for the matched source is GlC. A published radial velocity value is -331.4 km/s. The SIMBAD record currently connects it to 475 bibliographic references.

At roughly 5.9 arcminutes across, it benefits from a narrower field and adequate image scale. Use the listed 5.9 by 5.9 arcminute extent to check framing, and treat catalogue magnitude as integrated brightness rather than a direct measure of visual contrast.

Sourced catalogue data

Scientific record

Measurements for M72 are kept separate from practical observing guidance.

Coordinates (J2000/ICRS)
RA 313.365417° · Dec -12.537306°
SIMBAD classification
GlC
Angular extent
5.9′ × 5.9′
Position angle
90°
Radial velocity
-331.39 km/s
Redshift
-0.00110479
Linked bibliography
475 references
Best midnight placement
July
Observable latitude range
-90° to 77.5°

Source: SIMBAD astronomical database (CDS, Strasbourg) (ODbL; checked 2026-08-09). Catalogue values may change when new measurements are published.

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