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・ NGC 6302
・ NGC 6304
・ NGC 6309
・ NGC 6316
・ NGC 6325
・ NGC 6326
・ NGC 6328
・ NGC 6334
・ NGC 634
・ NGC 6340
・ NGC 6342
・ NGC 6352
・ NGC 6355
・ NGC 6356
・ NGC 5334
NGC 5364
・ NGC 5371
・ NGC 5398
・ NGC 54
・ NGC 5408
・ NGC 5466
・ NGC 5474
・ NGC 5477
・ NGC 5490
・ NGC 55
・ NGC 5544
・ NGC 5545
・ NGC 5548
・ NGC 5562
・ NGC 5566


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NGC 5364 : ウィキペディア英語版
NGC 5364

NGC 5364 is a grand design spiral galaxy located 54.5〔 million light years away in the constellation Virgo. It is inclined to the line of sight from the Earth at an angle of 47° along a position angle of 25°.〔
==Structure==

The morphological classification of NGC 4698 in the De Vaucouleurs system is SA(rs)bc pec,〔 which indicates it has an incomplete ring structure (rs) in the inner part of the galaxy with moderate to loosely wound arms (bc) and has a peculiar aspect (pec).〔 In particular, the appearance of the spiral arms is amorphous and asymmetrical compared to other galaxies with a similar classification.〔 A companion galaxy, NGC 5363, is located to the north of NGC 5364 and their gravitational interaction may be influencing the peculiar morphology of the latter.〔
The mid-infrared emission in the nucleus appears weak compared to the spiral arms, suggesting a low rate of star formation in the core region.〔 The inner ring of this galaxy spans a diameter of and is located slightly off center with the northern side showing a stronger emission in the hydrogen alpha band compared to the southern half. Multiple H II regions lie along the spiral arms, tracing out their extent.〔 Each of the two main arms wrap all the way around the galaxy, although they display patchiness along much of their length.〔

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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