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Sirius is a binary star system consisting of two white stars orbiting each other with a separation of about 20 AU [e] (roughly the distance between the Sun and Uranus) and a period of 50.1 years. The brighter component, termed Sirius A, is a main-sequence star of spectral type early A , with an estimated surface temperature of 9,940 K . [ 14 ]
Star of David, or Jewish Star, a hexagram symbolizing Israel, Judeans, and/or Jews; properly speaking, this "star" is called the "Shield of David," (Magen David), while the pentagram is the "Star of David." Note that this is a cultural, rather than religious symbol. Star of Lakshmi, a Hindu symbol associated with the goddess Lakshmi
In Chinese astrology, the symbolic stars, also translated as star spirits or calendar spirits, (Chinese: 神 煞; pinyin: shén shā) represent beneficial and baleful influences believed to be present during particular times (including the year, month, and hour), [1] typically in relation to the specific positions and interactions of the heavenly stems and earthly branches used in traditional ...
Aldebaran is a red giant, meaning that it is cooler than the Sun with a surface temperature of 3,900 K, but its radius is about 45 times the Sun's, so it is over 400 times as luminous. As a giant star , it has moved off the main sequence on the Hertzsprung–Russell diagram after depleting its supply of hydrogen in the core .
NGC 2264 is the designation number of the New General Catalogue that identifies two astronomical objects as a single object: the Cone Nebula, and the Christmas Tree Cluster. Two other objects are within this designation but not officially included, the Snowflake Cluster , [ 3 ] [ 4 ] and the Fox Fur Nebula . [ 5 ]
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These stars are broadly similar to the Sun. They are main-sequence stars with a B−V color between 0.48 and 0.80, the Sun having a B−V color of 0.65. Alternatively, a definition based on spectral type can be used, such as F8V through K2V, which would correspond to B−V color of 0.50 to 1.00. [1]
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