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C47

NGC 6934

Globular Cluster Good (57/100)
C47 GlobularCluster Delphinus Visible Level 2 Small telescope (4") - Higher magnification helpful
Credit: en:NASA, en:STScI, en:WikiSky. License: Public domain. (Wikimedia Commons)
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Properties

Magnitude 8.9
Angular Size 5.4′
Distance 52000 ly
Globular Cluster [Distance: 52000 ly]

Position & Identifiers

RA 20h 34m 11.3s
Dec +07° 24' 14.4"
Constellation Delphinus
Catalog C47

Visibility

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About C47

Description

NGC 6934 is a globular cluster in Delphinus, about 50,000 light-years away. It is a moderately concentrated cluster spanning about 5.9 arcminutes with an integrated magnitude of 8.9.

Observing Tips

Visible as a small, fuzzy ball in a 4-inch telescope. An 8-inch scope begins to resolve the outer edges into individual stars at 150x+. Located in Delphinus, best observed in summer and autumn evenings.

History

Discovered by William Herschel on September 24, 1785. It is one of two Caldwell globular clusters in the small constellation Delphinus (along with C42).

Fun Facts

NGC 6934 contains a relatively high number of RR Lyrae variable stars, which are used as standard candles for measuring distances in astronomy.

Community Photos (1)

Credit: en:NASA, en:STScI, en:WikiSky. License: Public domain. (Wikimedia Commons)

Credit: en:NASA, en:STScI, en:WikiSky. License: Public domain. (Wikimedia Commons)

Skybred Mar 2, 2026