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Lingkaran Gould

Lingkaran Gould ialah sekumpulan bintang yang membentuk bulatan yang separuh. Lingkaran ini sangat luas dan dianggarkan mempunyai diameter kira-kira 3,000 tahun cahaya. Dalam kiraan bumi, anggarannya adalah lebih kurang 18,000,000,000,000,000 batu atau 28,000,000,000,000 km[1]. Ia condong kepada paksi galaksi dalam 16 ke 20 darjah. Lingkaran Gould mengandungi bintang jenis O dan B, dan mewakili lengan pilin tempatan di mana Matahari adalah ahlinya - kira-kira 325 tahun cahaya dari pusatnya. Ia adalah 30 ke 50 juta tahun, dan asalnya tidak diketahui. Ia yang dinamakan sempena Benjamin Gould, yang menjumpainya pada tahun 1879[2][3][4].

Lihat juga

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  1. ^ Gould's Belt
  2. ^ Sir Patrick Moore (penyunting). Astronomy Encyclopædia (dalam bahasa English) (ed. Revised). Great Britain: Philip's. m/s. pg. 164. Unknown parameter |month= ignored (bantuan); |pages= has extra text (bantuan)CS1 maint: unrecognized language (link)
  3. ^ "The Gould Belt" (HTML). The GAIA Study Report (dalam bahasa English). Dicapai pada 2006-07-18.CS1 maint: unrecognized language (link)
  4. ^ "Gould Belt" (HTML). The Encyclopedia of Astrobiology Astronomy and Spaceflight (dalam bahasa English). Dicapai pada 2006-07-18.CS1 maint: unrecognized language (link)

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Lingkaran Gould
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