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・ NGC 1427A
・ NGC 1433
・ NGC 1435
・ NGC 145
・ NGC 147
・ NGC 1483
・ NGC 15
・ NGC 1501
・ NGC 1502
・ NGC 151
・ NGC 1512
・ NGC 1514
・ NGC 1528
・ NGC 1531
・ NGC 1532
NGC 1533
・ NGC 1535
・ NGC 1545
・ NGC 1553
・ NGC 1554
・ NGC 1555
・ NGC 1559
・ NGC 1560
・ NGC 1566
・ NGC 1569
・ NGC 157
・ NGC 1579
・ NGC 1592
・ NGC 16
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NGC 1533 : ウィキペディア英語版
NGC 1533

NGC 1533 is a barred lenticular galaxy with faint spiral structure in the constellation Dorado and the seventh brightest member of the Dorado Group and 1°〔 off the group's center. It is surrounded by a vast arc or ring of H I which is connected to IC 2038 and IC 2039.〔 The ring orbits around 32 kpc from the center. It is typical of lenticular galaxies in that star formation is weak in NGC 1533.〔 Using both the surface brightness fluctuation (SBF) and globular cluster luminosity function (GCLF) methods, its distance was estimated in 2007 to be 19.4 ± 1.1 Mpc and 18.6 ± 2.0 Mpc respectively.〔 Averaging these together gives a distance of around 19 million parsecs or 62 million light-years from earth. In 1970, a supernova was detected in NGC 1533.
NGC 1533 was discovered by John Herschel on December 5, 1834.
==Notes==


  1. average(19.4 ± 1.1, 18.6 ± 2.0) = ((19.4 + 18.6) / 2) ± ((1.12 + 2.02)0.5 / 2) = 19.0 ± 1.1

  2. 35 kpc calculated assuming a distance of 21 Mpc〔 converts to a distance of 32 (35 ÷ 21 × 19) kpc for the current distance estimate of 19 Mpc



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 1533」の詳細全文を読む



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