Iota1 Scorpii

Starbox begin
name=Iota¹ Scorpii Starbox observe
epoch=J2000
ra=17^h 47^m 35.1^s
dec=−40° 07′ 37″
appmag_v=3.02
constell=Scorpius Starbox character
class=F2 Iae
b-v=0.51
u-b=0.27
variable=? Starbox astrometry
radial_v=−27.6
prop_mo_ra=0.44
prop_mo_dec=−6.40
parallax=1.82
p_error=0.73
absmag_v=-5.68 Starbox detail
mass=12
radius=125
luminosity=29,000
temperature=6,700
metal=?
rotation=36 km/s
age=? Starbox catalog
names=HR 6615, CD -40°11838, HD 161471, SAO 228420, CCDM 17476-4008, CPD P-40 8088, FK5 666, HIP 87073.

Iota-1 Scorpii is a yellow-white F-type supergiant with an apparent magnitude of +3.02. (Different sources give apparent magnitudes in the range 2.99–3.03.) It is approximately 1800 light years from Earth. It has a 13th magnitude companion 37.5 arcseconds, or at least 20,000 astronomical units (AU), away from it.

External links

* [http://www.astro.uiuc.edu/~kaler/sow/iota1sco.html Iota-1 Scorpii] by Dr. Jim Kaler.