C47
NGC 6934
Dados do Objeto
- Designação do Catálogo
- C47
- Tipo
- GlobularCluster
- Constelação
- Delphinus
- Magnitude
- 8.9
- Ascensão Reta
- 20h 34m 11.3s
- Declinação
- +07° 24' 14.4"
- Distância
- 52,000 anos-luz
- Tamanho Angular
- 6
Imagem de Levantamento
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Sobre C47
Descrição
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.
Dicas de Observação
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.
História
Discovered by William Herschel on September 24, 1785. It is one of two Caldwell globular clusters in the small constellation Delphinus (along with C42).
Curiosidades
NGC 6934 contains a relatively high number of RR Lyrae variable stars, which are used as standard candles for measuring distances in astronomy.
Fotos da Comunidade (1)
Credit: en:NASA, en:STScI, en:WikiSky. License: Public domain. (Wikimedia Commons)
Skybred Mar 2, 2026