Sigma Orionis
Sign in to saveAlso known as 18 Ori, σ Ori, σ Orionis, 18 Orionis, HGAM 463, HR 1931, HD 37468, NSV 16610
five-star system in the constellation Orion
In the Vinony graph
Vinony's link graph records 168 inbound references to Sigma Orionis, and connects out to list of stars in Orion, stellar classification and year.
It is catalogued under topics including A-type main-sequence stars, Bayer objects and Bright Star Catalogue objects.
Vinony links it to 22 Wikipedia language editions.
Wikidata facts
- Constellation
- Orion
- Image
- Sigma orionis cluster.jpg
Show 12 more facts
- spectral class
- O9.5V+B0.5V
- catalog code
- UBV M 11305
- apparent magnitude
- 3.790166
- effective temperature
- 31270
- parallax
- 3.04
- radial velocity
- 22.3
- right ascension component of proper motion
- 1
- epoch
- J2000.0
- declination component of proper motion
- 4
- age estimated by a dating method
- 0.3
- right ascension
- 84.68652242855
- declination
- -2.60007866108
Sources (2)
via Wikidata · CC0
Connections
list of stars in Orion
Entity
stellar classification
Entity
year
Entity
Orion
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retrograde motion
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spectral line
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Henry Draper Catalogue
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Hipparcos
Entity
stellar rotation
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Bright Star Catalogue
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minute and second of arc
Entity
Orion OB1 Association
Entity
star
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galaxy
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radio
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International Standard Book Number
Entity
light-year
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constellation
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Ptolemy
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kelvin
Entity
Categories
A-type main-sequence starsBayer objectsBright Star Catalogue objectsB-type main-sequence starsDurchmusterung objectsEmission-line starsFlamsteed objectsHenry Draper Catalogue objectsHipparcos objectsMultiple star systemsObjects with variable star designationsOpen clustersOrion (constellation)Orion molecular cloud complexO-type main-sequence starsSX Arietis variables