クエーサー

also: クェーサー

ク

エ

ー

サ

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Common wordFreq.FrequencyTop 100,000

Meanings

1

noun

astronomy

Astronomical term for an extremely luminous active galactic nucleus. Used in scientific and educational contexts.

クエーサーUsage4%
Standard katakana spelling; the most common form in modern Japanese.
クェーサーUsage96%
Alternate katakana spelling; less common but still encountered.

ブラックホール
A black hole is a region of spacetime, while a quasar is the luminous phenomenon powered by a supermassive black hole.
活かつ動どう銀ぎん河が核かく
Active galactic nucleus (AGN) is the broader category; a quasar is a particularly luminous type of AGN.

Borrowed from English 'quasar', a contraction of 'quasi-stellar radio source'.