- Kappa Orionis
Starbox begin
name=Kappa Orionis Starbox observe
epoch=J2000
ra=05h 47m 45.4s
dec=-09° 40′ 11″
appmag_v=2.06
constell=Orion Starbox character
class=B0.5 Iavar
b-v=-0.17
u-b=-1.03
variable=Slightly Starbox astrometry
radial_v=21
prop_mo_ra=1.55
prop_mo_dec=-1.20
parallax=4.52
p_error=0.77
absmag_v=-4.66 Starbox detail
mass=15-17
radius=11
luminosity=57,500 | temperature=26,000
metal=?
rotation=~82 km/s.
age=? Starbox catalog
names=Saiph, 53 Orionis, HR 2004, BD -09°1235, HD 38771, SAO 132542, FK5 220, HIP 27366.Kappa Orionis (κ Ori / κ Orionis / 53 Orionis) is the sixth-brightest
star in theconstellation of Orion. It also has the traditional name Saiph. To an observer in the northern hemisphere facing south, it is the lower left of the four bright stars that compose Orion's main quadrangle. The name is from the Arabic "saif al jabbar", literally "sword of the giant".Kappa Orionis is the sixth brightest star in Orion. At 720 light years away and 15-17 solar masses, it is about the same distance away from the Sun, and about the same size, as Rigel. It has a much higher magnitude (2.06) than Rigel because it is a much hotter star, with a surface temperature of 26,000,000 degrees Fahrenheit. Such stars mostly radiate ultraviolet light. Large stars such as Saiph (and many other stars in Orion) are destined to collapse on themselves and explode as supernovae.
External links
* [http://www.daviddarling.info/encyclopedia/S/Saiph.html Saiph (Kappa Orionis)]
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