Gamma Cygni

Starbox begin
name=Gamma Cygni Starbox image


caption = Gamma Cygni Starbox observe
epoch=J2000
ra=20^h 22^m 13.7^s
dec=+40° 15′ 24″
appmag_v=2.23
constell=Cygnus Starbox character
class=F8 Ib
b-v=0.673
u-b=0.53
variable=Pulsating Starbox astrometry
radial_v=-7.5
prop_mo_ra=2.43
prop_mo_dec=-0.93
parallax=2.43
p_error=0.51
absmag_v=-6.12 Starbox detail
mass=12
radius=225
luminosity=65,000 | temperature=6,500
metal=?
rotation=20 km/s.
age=? Starbox catalog
names=Sadr, Sadir, Sador, 37 Cyg, HR 7796, BD +39°4159, HD 194093, SAO 49528, FK5 765, HIP 100453. Starbox reference
Simbad=Gamma+Cygni

Gamma Cygni (γ Cyg / γ Cygni) is a star in the constellation Cygnus. It also has the traditional name Sadr (also spelled Sadir or Sador).

The traditional name comes from the Arabic word صدر "şadr", "chest", the same word which gave rise to the star Schedar (Alpha Cassiopeiae).

This star is surrounded by a diffuse nebula called
IC1318, or the "Gamma Cygni region".

External links

* [http://www.astro.uiuc.edu/~kaler/sow/sadr.html Sadr] by Jim Kaler.
* http://www.atlasoftheuniverse.com/nebulae/ic1318.html