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PKS 2000-330 : ウィキペディア英語版 | PKS 2000-330
PKS 2000-330 (also known as QSO B2000-330) is a quasar〔 located in the constellation Sagittarius. When identified in 1982, it was the most distant and most luminous object known. ==Distance measurements== The "distance" of a far away galaxy depends on what distance measurement you use. With a redshift of 3.77,〔 light from this active galaxy is estimated to have taken around 11.7 billion years to reach us.〔 But since this galaxy is receding from Earth at an estimated rate of 274,681 km/s〔 (the speed of light is 299,792 km/s), the present (co-moving) distance to this galaxy is estimated to be around 22.7 billion light-years (6947 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「PKS 2000-330」の詳細全文を読む
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