V380 Ori embedded in NGC 1999 Credit: NASA and the Hubble Heritage Team (STScI)
Observation data Epoch J2000 Equinox J2000
Constellation
Orion
Right ascension
05h 36m 25.43205s[1]
Declination
–06° 42′ 57.6847″[1]
Apparent magnitude (V)
10.2–10.7[2]
Characteristics
Spectral type
A1e[3]
Variable type
Orion variable[4]
Astrometry
Radial velocity (Rv)
15.40[5] km/s
Proper motion (μ)
RA: –0.667[1] mas/yr Dec.: –2.408[1] mas/yr
Parallax (π)
2.6425 ± 0.1117 mas[1]
Distance
1,230 ± 50 ly (380 ± 20 pc)
Orbit[6]
Period (P)
104 ± 5 days
Semi-amplitude (K1) (primary)
< 1.4 km/s
Semi-amplitude (K2) (secondary)
18 ± 14 km/s
Details[6]
Primary
Mass
2.87 M☉
Radius
3 R☉
Luminosity
100 L☉
Temperature
10,500 ± 500 K
Metallicity [Fe/H]
0.5 dex
Rotation
4.31276 days
Rotational velocity (v sin i)
6.7 ± 1.1 km/s
Secondary
Mass
1.6 M☉
Radius
2 R☉
Luminosity
3.16 L☉
Temperature
5,500 ± 500 K
Rotational velocity (v sin i)
18.7 ± 3.2 km/s
Age
2 ± 1 million Myr
Other designations
V380 Ori, BD−06°1253, HIP 26327, WDS J05365-0643
Database references
SIMBAD
data
V380 Ori is a young multiple star system located near the Orion Nebula in the constellation Orion, thought to be somewhere between 1 and 3 million years old. It lies at the centre of NGC 1999 and is the primary source lighting up this and other nebulae in the region.
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the primary source lighting up this and other nebulae in the region. V380Orionis is a multiple star system containing at least three stars. A very faint...
Michelson, A. A.; Pease, F. G. (1921). "Measurement of the diameter of Alpha Orionis with the interferometer". Astrophysical Journal. 53 (5): 249–259. Bibcode:1921ApJ...
a reflection nebula, and shines from the light of the variable star V380Orionis. It was previously believed that the black patch was a dense cloud of...
Nu Orionis (ν Orionis) is a binary star system in the northeastern part of the constellation Orion. It should not be confused with the variable star NU...
a result of its rapid rotation, Omega Orionis is a Be class star. Among the stars of this class, Omega Orionis was the first where the magnetic field...
Tau Orionis (τ Ori, τ Orionis) is a solitary star in the constellation Orion. If an imaginary line is drawn north-west between the stars Rigel and Mintaka...
Pi6 Orionis (π6 Ori, π6 Orionis) is a solitary star in the eastern part of the constellation Orion. It is visible to the naked eye with an apparent visual...
Xi Orionis (ξ Orionis) is a binary star system in the northeastern part of the constellation of Orion, well above the red giant star Betelgeuse in the...
Omicron1 Orionis (ο1 Ori) is a binary star in the northeastern corner of the constellation Orion. It is visible to the naked eye with an apparent visual...
Pi1 Orionis (π1 Ori, π1 Orionis) is a star in the equatorial constellation of Orion. It is faintly visible to the naked eye with an apparent visual magnitude...
Pi2 Orionis (π2 Ori, π2 Orionis) is the Bayer designation for a solitary star in the equatorial constellation of Orion. Although the Bright Star Catalogue...
Omicron2 Orionis (ο2 Ori) is a solitary star in the constellation Orion. It has an apparent visual magnitude of 4.06, which is bright enough to be seen...
Phi2 Orionis is a star in the constellation Orion, where it forms a small triangle on the celestial sphere with the nearby Meissa and Phi1 Orionis. This...
Pi4 Orionis (π4 Ori, π4 Orionis) is a binary star system in the western part of the Orion constellation. It is visible to the naked eye with an apparent...
Phi1 Orionis is a binary star system in the constellation Orion, positioned less than a degree to the south of Meissa. It is visible to the naked eye...
study of mass loss from the mid-ultraviolet spectrum of α Cygni (A2 Ia), β Orionis (B8 Ia), and η Leonis (A0 Ib)". The Astrophysical Journal. 223: 207. Bibcode:1978ApJ...
Pi5 Orionis (π5 Ori, π5 Orionis) is a binary star system in the constellation Orion. It has an apparent visual magnitude of 3.69, which is bright enough...
Psi2 Orionis a binary star system in the equatorial constellation of Orion. It has an apparent visual magnitude of 4.6, indicating that it is visible...
constellation of Cygnus. It is a variable star of the FU Orionis-type, and was the second FU Orionis-type variable to be discovered. The system is located...
Cygni was classified as a Herbig Ae/Be star in 1999 in a catalog of UX Orionis stars. However, this proved incorrect because of the star's its fast rotation...
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