Iota Orionis
Sign in to saveAlso known as Hatysa, HD 37043, 44 Orionis, 44 Ori, ι Orionis, ι Ori, Parenago 2037, WH 301
star in the constellation Orion
In the Vinony graph
Within Vinony's link graph, Iota Orionis is referenced by 163 other articles, and connects out to list of stars in Orion, Hipparcos and year.
It sits within the topics Bayer objects, Bright Star Catalogue objects and B-type giants.
Its subject is documented across 34 Wikipedia language editions.
Astronomical data · SIMBAD
- Object type
- SB*
- Spectral type
- O9IIIvar
- Distance
- 1,633 light-years
- Redshift
- z = 0.00009206792852634038
- Coordinates
- RA 83.8583° · Dec -5.9099°
via SIMBAD · CDS Strasbourg
Key facts
- Constellation
- Orion
- Right ascension
- 05 35 25.98191
- Declination
- −05 ° 54 ′ 35.6435 ″
- Spectral type
- O9 III + B0.8 III/IV + B2:IV:
- U b color index
- −1.08
- B v color index
- −0.24
- Variable type
- Orion
via Wikipedia infobox
Wikidata facts
- Instance of
- binary star
- Constellation
- Orion
- Mass
- 1.236
- Variable-star type
- Orion variable
- Image
- The Orion Nebula M42.jpg
Show 15 more facts
- spectral class
- O8.5.SB
- catalog code
- ALS 14790
- stellar rotational velocity
- 99
- apparent magnitude
- 3.46
- parallax
- 2.46
- right ascension
- 83.85825794708
- declination
- -5.90990098250
- effective temperature
- 18000
- radial velocity
- 30.1
- epoch
- J2000.0
- metallicity
- 0.10
- absolute magnitude
- 3.65
- right ascension component of proper motion
- 0
- declination component of proper motion
- 5
- surface gravity
- 10000
Sources (2)
via Wikidata · CC0
~5 min read
Encyclopedic overview
Iota Orionis (ι Orionis, abbreviated ι Ori) is a multiple star system in the equatorial constellation of Orion the hunter. It is the eighth-brightest member of Orion with an apparent visual magnitude of 2.77 and also the brightest member of the asterism known as Orion's Sword. It is a member of the NGC 1980 open cluster. From parallax measurements, it is located at a distance of roughly 1,340 light-years (412 parsecs) from the Sun.
The system has three visible components designated Iota Orionis A, B and C. Iota Orionis A has also been resolved using speckle interferometry and is also a massive spectroscopic binary, with components Iota Orionis Aa1 (officially named Hatysa /hɑːˈtiːsə/), Aa2, and Ab.
Excerpted from Wikipedia’s “Iota Orionis” article, available under the CC BY-SA 4.0 licence.