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C105

NGC 4833

구상성단 우수 (74/100)
C105 GlobularCluster Musca 관측 가능 난이도 2 Small telescope (4") - Higher magnification helpful
Credit: ESA/Hubble and NASA. License: CC BY 4.0. (Wikimedia Commons)
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특성

등급 7.4
각크기 8.4′
거리 21200 ly
Globular Cluster [Distance: 21200 ly]

위치 & 식별자

RA 12h 59m 35.5s
Dec -70° 52' 33.6"
별자리 Musca
카탈로그 C105

가시성

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C105 소개

설명

NGC 4833 is a globular cluster in Musca, about 21,200 light-years away. It spans about 14 arcminutes and shines at magnitude 7.4. The cluster lies behind significant foreground dust, which reddens and dims it somewhat.

관측 팁

Visible as a moderately bright, round glow in a 4-inch telescope. An 8-inch scope resolves the outer stars. The foreground dust gives the cluster a slightly reddened appearance. Best from southern latitudes in autumn and winter.

역사

Discovered by Nicolas Louis de Lacaille in 1751 from South Africa. It is one of the more obscured globular clusters in this part of the sky due to intervening Milky Way dust.

재미있는 사실

NGC 4833 is one of the more metal-poor globular clusters in the Milky Way, suggesting it is among the oldest. Its position behind moderate interstellar extinction has historically made precise measurements challenging.

커뮤니티 사진 (1)

Credit: ESA/Hubble and NASA. License: CC BY 4.0. (Wikimedia Commons)

Credit: ESA/Hubble and NASA. License: CC BY 4.0. (Wikimedia Commons)

Skybred Mar 2, 2026