Astronomy and Space

Gamma Cygni

Gamma Cygni is a star in the northern constellation of Cygnus, forming the intersection of an asterism of five stars called the Northern Cross. It is officially named Sadr ; Gamma Cygni is its Bayer designation. Based upon parallax measurements obtained during the Hipparcos mission, it is approximately 1,800 light-years (560 parsecs) from the Sun. It forms the primary or 'A' component of a multiple star system designated WDS J20222+4015 (the secondary or 'BCD' component is WDS J20222+4015BCD, a close triplet of stars 41" away from γ Cygni).

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See also

• ▸Explorer 8
• ▸2021 North Kivu Ebola outbreak
• ▸5 Persei

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