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C68

NGC 6729

C68 DiffuseNebula Corona Australis 관측 가능 난이도 5 Expert level - Consider nebula filters
Credit: ESO. License: CC BY 3.0. (Wikimedia Commons)
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특성

등급 10.0
각크기 25.0′ × 20.0′
거리 400 ly
Diffuse Nebula [Distance: 400 ly]

위치 & 식별자

RA 19h 08m 01.4s
Dec -36° 57' 07.2"
별자리 Corona Australis
카탈로그 C68

가시성

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서베이 이미지

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C68 소개

설명

NGC 6729 is a reflection and emission nebula in Corona Australis, about 424 light-years away. It is associated with the variable star R Coronae Australis and is part of a small but active star-forming complex that includes the Coronet cluster.

관측 팁

A small, fan-shaped nebula visible in a 6-inch telescope. It varies in brightness along with R CrA. Located near the globular cluster NGC 6723 and the dark nebula complex. Best from southern locations in summer.

역사

Discovered by Johann Friedrich Julius Schmidt in 1861. Like Hubble's Variable Nebula (C46), NGC 6729 changes in brightness and shape as the illuminating star R CrA varies.

재미있는 사실

The Corona Australis star-forming region containing NGC 6729 is one of the nearest active star-formation areas to Earth, at only 424 light-years. Several T Tauri protostars are embedded in the associated molecular cloud.

커뮤니티 사진 (1)

Credit: ESO. License: CC BY 3.0. (Wikimedia Commons)

Credit: ESO. License: CC BY 3.0. (Wikimedia Commons)

Skybred Mar 2, 2026