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・ NGC 4262
・ NGC 428
・ NGC 4293
・ NGC 43
・ NGC 4308
・ NGC 4309
・ NGC 4314
・ NGC 4319
・ NGC 4323
・ NGC 4349-127
・ NGC 4361
・ NGC 4372
・ NGC 4395
・ NGC 44
・ NGC 4402
NGC 4414
・ NGC 4420
・ NGC 4444
・ NGC 4448
・ NGC 4449
・ NGC 4450
・ NGC 4451
・ NGC 4452
・ NGC 4463
・ NGC 4485
・ NGC 45
・ NGC 4517
・ NGC 4526
・ NGC 4527
・ NGC 4534


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NGC 4414 : ウィキペディア英語版
NGC 4414

NGC 4414 is an unbarred spiral galaxy about 62 million light-years away in the constellation Coma Berenices. It is a flocculent spiral galaxy, with short segments of spiral structure but without the dramatic well-defined spiral arms of a grand design spiral. In 1974 a supernova, SN 1974G, was observed and was the only supernova in this galaxy to be recorded until June 7, 2013 when SN 2013df was discovered at Magnitude 14.
It was imaged by the Hubble Space Telescope in 1995, as part of the HST's main mission to determine the distance to galaxies, and again in 1999 as part of the Hubble Heritage project. It has been part of an ongoing effort to study its Cepheid variable stars. The outer arms appear blue due to the continuing formation of young stars and include a possible Luminous Blue Variable with an absolute magnitude of −10
NGC 4414 is also a very isolated galaxy without signs of past interactions with other galaxies and despite not being a starburst galaxy shows a high density and richness of gas -both atomic and molecular, with the former extending far beyond its optical disk-
==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 4414」の詳細全文を読む



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