Astronomy and Space

Eta Draconis

Eta Draconis (η Draconis, abbreviated Eta Dra, η Dra) is a binary star in the northern circumpolar constellation of Draco. Despite having an apparent visual magnitude of only +2.73, it is the second-brightest star in this generally faint constellation. Based upon parallax measurements collected during the Hipparcos mission, this star is located at a distance of about 92.1 light-years (28.2 parsecs) from the Sun. The two components are designated Eta Draconis A (also named Athebyne ) and B.

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See also

• ▸Lambda-CDM model
• ▸Greek Muslims
• ▸ARIEL

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