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Stars of Pleiades with color and 10,000-year backward proper motion shown. Ages for star clusters may be estimated by comparing the Hertzsprung–Russell diagram for the cluster with theoretical models of stellar evolution. Using this technique, ages for the Pleiades of between 75 and 150 million years have been estimated.
• Notes = Common name(s) or alternate name(s); comments; notable properties [for example: multiple star status, range of variability if it is a variable star, exoplanets, etc.] See also [ edit ]
In astronomy, star names, in contrast to star designations, are proper names of stars that have emerged from usage in pre-modern astronomical traditions. Lists of these names appear in the following articles: List of Arabic star names; List of Chinese star names; List of proper names of stars: traditional proper names in modern usage around ...
Use: National flag : Proportion: 2:3: Adopted: March 4, 1865: Design: A white rectangle, one-and-a-half times as wide as it is tall, a red vertical stripe on the far right of the rectangle, a red quadrilateral in the canton, inside the canton is a blue saltire with white outlining, with thirteen white five-pointed stars of equal size inside the saltire.
The main cast of Sailor Moon as seen in the 1990s anime adaptation. The Sailor Moon manga series features a cast of characters created by Naoko Takeuchi.The series takes place in Tokyo, Japan, where the Sailor Guardians (セーラー戦士, Sērā Senshi), a group of ten magical girls, are formed to fight against antagonists who aim to take over the Earth, the Solar System, and the Milky Way.
Size (left) and distance (right) of a few well-known galaxies put to scale. The following is a list of notable galaxies.. There are about 51 galaxies in the Local Group (see list of nearest galaxies for a complete list), on the order of 100,000 in the Local Supercluster, and an estimated 100 billion in all of the observable universe.
• Notes = Common name(s) or alternate name(s); comments; notable properties [for example: multiple star status, range of variability if it is a variable star, exoplanets, etc.] See also [ edit ]
It is an orange giant star of magnitude 2.2, 148 light-years from Earth. The aberration of starlight was discovered in 1728 when James Bradley observed Gamma Draconis. Nearby Beta Draconis, traditionally called Rastaban, is a yellow giant star of magnitude 2.8, 362 light-years from Earth. Its name shares a meaning with Thuban, "head of the ...