Ursa Major cluster

An open cluster containing over 100 stars that are scattered over an area of sky more than 1000 minutes of arc in diameter; its wide angular diameter is due to its proximity to Earth. It includes the stars Beta (β), Gamma (γ), Delta (δ), Epsilon (Ɛ), and Zeta (ζ) Ursae Majoris in the Plough, and also Sirius.

Ursa Major cluster

[′ər·sə ′mā·jər ‚kləs·tər] (astronomy) An open cluster of stars, including 5 bright stars of the constellation Ursa Major, centered about 75 light-years from the sun and spread over a volume of 30 light-years length and 18-light-years width. A cluster of galaxies in the constellation Ursa Major having a redshift of about 0.051.

单词	ursa major cluster
释义	Ursa Major cluster Ursa Major cluster An open cluster containing over 100 stars that are scattered over an area of sky more than 1000 minutes of arc in diameter; its wide angular diameter is due to its proximity to Earth. It includes the stars Beta (β), Gamma (γ), Delta (δ), Epsilon (Ɛ), and Zeta (ζ) Ursae Majoris in the Plough, and also Sirius. Ursa Major cluster [′ər·sə ′mā·jər ‚kləs·tər] (astronomy) An open cluster of stars, including 5 bright stars of the constellation Ursa Major, centered about 75 light-years from the sun and spread over a volume of 30 light-years length and 18-light-years width. A cluster of galaxies in the constellation Ursa Major having a redshift of about 0.051.
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