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NGC 6752 (Globular Cluster)


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NGC 6752
Globular Cluster (球状星団)
Gb VI


別名 (Other names)
GCL 108, ESO 141-SC30, Caldwell 93

明るさ (Brightness)
5.3等級

星座 (Constellation)
くじゃく座 (Pav) (Pavo)

距離 (Distance)
13,000光年 (13,000 light-years)

NGC 6752(Caldwell 93)は、くじゃく座の球状星団。
球状星団としては、オメガ星団、きょしちょう座47に次いで全天で3番目に明るい。

NGC 6752 is a globular cluster located 13,000 light years from the Earth in the constellation Pavo.

NGC 6752 (Globular Cluster) : Picture

At the Core of NGC 6752
At the Core of NGC 6752
(C) NASA
This sharp Hubble Space Telescope view looks deep into NGC 6752. Some 13,000 light-years away toward the southern constellation Pavo, the globular star cluster roams the halo of our Milky Way galaxy. Over 10 billion years old, NGC 6752 holds over 100 thousand stars in a sphere about 100 light-years in diameter, but the Hubble image frame spans the central 10 or so light-years and resolves stars near the dense cluster core. In fact the frame includes some of the cluster's blue straggler stars, stars which appear to be too young and massive to exist in a cluster whose stars are all expected to be at least twice as old as the Sun. Explorations of the NGC 6752 have also indicated that a remarkable fraction of the stars near the cluster's core, are multiple star systems, supporting arguments that star mergers and collisions in the dense stellar environment can create the cluster's blue straggler stars.

Globular Star Cluster NGC 6752
Globular Star Cluster NGC 6752
(C) Damian Peach
Some 13,000 light-years away toward the southern constellation Pavo, the globular star cluster NGC 6752 roams the halo of our Milky Way galaxy. Over 10 billion years old, NGC 6752 follows clusters Omega Centauri and 47 Tucanae as the third brightest globular in planet Earth's night sky. It holds over 100 thousand stars in a sphere about 100 light-years in diameter. Telescopic explorations of the NGC 6752 have found that a remarkable fraction of the stars near the cluster's core, are multiple star systems. They also reveal the presence of blue straggle stars, stars which appear to be too young and massive to exist in a cluster whose stars are all expected to be at least twice as old as the Sun. The blue stragglers are thought to be formed by star mergers and collisions in the dense stellar environment at the cluster's core. This sharp color composite also features the cluster's ancient red giant stars in yellowish hues.

Globular Star Cluster NGC 6752
Globular Star Cluster NGC 6752
(C) ESO
This image from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile shows the globular star cluster NGC 6752 in the southern constellation of Pavo. Studies of this cluster using ESO’s Very Large Telescope have unexpectedly revealed that many of the stars do not undergo mass-loss at the end of their lives.
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NGC 6752 (Globular Cluster) : Movie

Zooming in on the globular star cluster NGC 6752
The zoom video starts with a wide view of the central parts of the Milky Way and slowly closes in on the globular star cluster NGC 6752 in the southern constellation of Pavo. The final detailed image of the cluster is from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at La Silla Observatory in Chile. Studies of this cluster using ESO's Very Large Telescope have unexpectedly revealed that many of the stars do not undergo mass-loss at the end of their lives.

A close look at the globular star cluster NGC 6752
This video provides a close look at a new image from the Wide Field Imager on the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile. It shows the globular star cluster NGC 6752 in the southern constellation of Pavo. Studies of this cluster using ESO's Very Large Telescope have unexpectedly revealed that many of the stars do not undergo mass-loss at the end of their lives.
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「ウィキペディア(wikipedia):フリー百科事典」より文章引用。
NGC 6752. (2012, October 27). In Wikipedia.
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