WR 120

WR 120

A near-infrared (2.033 micron) light curve for V462 Scuti, adapted from Chené and St-Louis (2007).[1] The left-most point shows the 3 sigma error bar.
Observation data
Epoch J2000      Equinox J2000
Constellation Scutum
Right ascension 18h 41m 00.86698s[2]
Declination −4° 26′ 14.47345″[2]
Apparent magnitude (V) 11.93[3]
Characteristics
Evolutionary stage Wolf-Rayet
Spectral type WN7w[4] + WN3/4[5]
U−B color index 0.13[6]
B−V color index 1.04[6]
Astrometry
Proper motion (μ) RA: −0.489[7] mas/yr
Dec.: −2.524[7] mas/yr
Parallax (π)0.3246 ± 0.0541 mas[7]
Distanceapprox. 10,000 ly
(approx. 3,100 pc)
Absolute magnitude (MV)−3.81[4]
Details
Mass7[4] M☉
Radius3.78[4] R☉
Luminosity83,200[4] L☉
Temperature50,100[4] K
Other designations
MR 89, V462 Scuti, 2MASS J18410086-0426145
Database references
SIMBADdata

WR 120 is a binary containing two Wolf-Rayet stars in the constellation of Scutum, around 10,000 light years away. The primary is a hydrogen-free weak-lined WN7 star, the secondary is a hydrogen-free WN3 or 4 star, and the system is a possible member of the cluster Dolidze 33.[8] From our point of view, WR 120 is reddened by 4.82 magnitudes, and it has the variable designation of V462 Scuti.[9]

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  2. ^ a b Cite error: The named reference gaia was invoked but never defined (see the help page).
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  4. ^ a b c d e f Cite error: The named reference hamann was invoked but never defined (see the help page).
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  6. ^ a b Cite error: The named reference ducati was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference edr3 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference :0 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference gemma was invoked but never defined (see the help page).