- Eta Orionis
Starbox begin
name=Eta Orionis Starbox observe
epoch=J2000
constell=Orion
ra=05h 24m 28.6s (may be inaccurate)
dec=−02° 23' 49.7" (May be inaccurate)
appmag_v=3.38 Starbox character
class=B0.5V
b-v=−0.17
u-b=1.22
variable=Beta Lyrae variable Starbox astrometry experimental asymmetric
radial_v=19.8
prop_mo_ra=−0.54
prop_mo_dec=−3.21
parallax=3.62
p_error=0.88
absmag_v=−3.8Starbox catalog
names=η Ori, 28 Ori, HD 35411, HR 1788, BD−02°1235, HIP 25281, and SAO 132071Starbox reference
Simbad=HR+1788Eta Orionis (η Ori / η Orionis) is a
star in theconstellation Orion. It is also known as one of "Saiph" [Allen, R. H. (1899) ', G. E. Stechert, New York, p.316.
"Saiph" was also used to indicateKappa Orionis in the same constellation.] , "Algjebbah" [Moore, P. (1983) "The Guinness Book of Astronomy: Facts and Feats", (2nd ed.), Guiness Superlatives Limited, Middlesex, p.230.] , or "Ensis""' (Latin for "sword", since the star is taken to represent Orion's sheathed weapon).It is a
star system at a distance of 900light year s fromEarth and part of theOrion Arm . Eta Orionis lies a little to the west ofOrion's belt betweenDelta Orionis andRigel , being closer to Delta Orionis than to Rigel.It is an eclipsing binary system consisting of twoblue star s orbiting one another in a regular pattern.See also
*
Orion's Sword Notes
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