Gamma Cygni
Sign in to saveAlso known as Sadr, 37 Cygni, γ Cygni, HIP 100453, HIC 100453, 37 Cyg, γ Cyg, HD 194093
star in the northern constellation Cygnus
In the Vinony graph
Vinony's link graph records 330 inbound references to Gamma Cygni, and connects out to year, apparent magnitude and star system.
It is catalogued under topics including Bayer objects, Brightest stars and Bright Star Catalogue objects.
Vinony links it to 32 Wikipedia language editions.
Key facts
- Constellation
- Cygnus
- Right ascension
- 20 22 13.70184
- Declination
- +40 ° 15 ′ 24.0450 ″
- Spectral type
- F8 Iab
- U b color index
- +0.54
- B v color index
- +0.67
- Variable type
- suspected
via Wikipedia infobox
Wikidata facts
- Instance of
- yellow supergiant
- Part of
- Northern Cross
- Constellation
- Cygnus
- Distance from Earth
- 560
- Variable-star type
- Cepheid variable
Show 17 more facts
- catalog code
- UBV M 24788
- spectral class
- F8p
- stellar rotational velocity
- 20
- apparent magnitude
- 2.113725
- right ascension
- 305.55710787667
- declination
- 40.25667361143
- effective temperature
- 6000
- parallax
- 1.78
- radial velocity
- -5.906
- epoch
- J2000.0
- metallicity
- -0.04
- surface gravity
- 3.55
- luminosity
- 33023
- absolute magnitude
- -4.54
- right ascension component of proper motion
- -2
- declination component of proper motion
- 1
- age estimated by a dating method
- 12
Sources (3)
via Wikidata · CC0
~4 min read
Encyclopedic overview
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 /ˈsædər/; Gamma Cygni is its Bayer designation, which that is Latinized from γ Cygni, and abbreviated Gamma Cyg or γ Cyg. 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).
Excerpted from Wikipedia’s “Gamma Cygni” article, available under the CC BY-SA 4.0 licence.