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・ NGC 4517
・ NGC 305
・ NGC 3054
・ 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


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NGC 3195 : ウィキペディア英語版
NGC 3195

NGC 3195 is a planetary nebula located in the constellation Chamaeleon. It is the most southern of all the bright sizable planetary nebula in the sky, and remains invisible to all northern observers. Discovered by Sir John Herschel in 1835, this 11.6 apparent magnitude planetary nebula is slightly oval in shape, with dimensions of 40×35 arc seconds, and can be seen visually in telescopic apertures of at low magnifications.
Spectroscopy reveals that NGC 3195 is approaching Earth at , while the nebulosity is expanding at around . The central star is listed as >15.3V or 16.1B magnitude. Stephen James O'Meara has seen it visually with a 20-inch telescope, but he is unaware of anyone else doing so. Distance is estimated at about 1.7 kpc.
==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 3195」の詳細全文を読む



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