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・ NGC 3059
・ NGC 3077
・ NGC 3079
・ NGC 31
・ NGC 3109
・ NGC 3114
・ NGC 3115
・ NGC 3132
・ NGC 3169
・ NGC 3184
・ NGC 3185
・ NGC 3190
・ NGC 3195
・ NGC 3198
・ NGC 32
NGC 3201
・ NGC 321
・ NGC 3223
・ NGC 3226
・ NGC 3227
・ NGC 3242
・ NGC 3244
・ NGC 3258
・ NGC 3259
・ NGC 3260
・ NGC 3267
・ NGC 3268
・ NGC 3269
・ NGC 3271
・ NGC 3281


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NGC 3201 : ウィキペディア英語版
NGC 3201

NGC 3201 is a low galactic latitude globular cluster in the southern constellation of Vela. It has a very low central concentration of stars.〔 This cluster was discovered by James Dunlop on May 28, 1826 and listed it in his 1827 catalogue. He described it as "a pretty large pretty bright round nebula, 4′ or 5′ diameter, very gradually condensed towards the centre, easily resolved into stars; the figure is rather irregular, and the stars are considerably scattered on the south".〔
The radial velocity of this cluster is unusually high at 490 km/s, larger than any other cluster known. This corresponds to a peculiar velocity of 240 km/s. While high, this is lower than the escape velocity of the Milky Way galaxy.〔 It is located at a distance of 16,300 light years from the Sun and has an estimated 254,000 times the mass of the Sun.〔 This cluster is about 10.24 billion years old.〔
The stellar population of this cluster is inhomogeneous, varying with distance from the core. The effective temperature of the stars shows an increase with greater distance, with the redder and cooler stars tending to be located closer to the core. As of 2010, is one of only two clusters (including Messier 4) that shows a definite inhomogeneous population.〔
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「NGC 3201」の詳細全文を読む



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