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HD 92206

HD 92206
Location of HD 92206 (circled)
Observation data
Epoch J2000[1]      Equinox J2000[1]
Constellation Carina
HD 92206A
Right ascension 10h 37m 22.28065s
Declination −58° 37′ 22.8526″
Apparent magnitude (V) +8.219[2]
HD 92206B
Right ascension 10h 37m 22.96508s[3]
Declination −58° 37′ 22.9596″[3]
HD 92206C
Right ascension 06h 13m 47.17685s[4]
Declination −58° 37′ 22.9596″[4]
Apparent magnitude (V) 8.966[2]
Characteristics
HD 92206A
Spectral type O6.5V + O6.5V,[5] O6V((f))z (combined)[6]
B−V color index 0.096[2]
J−H color index −0.025[7]
J−K color index 0.084[7]
HD 92206B
Spectral type O6.5V[8] or O6V((f))z[6]
J−H color index 0.163[7]
J−K color index −0.047[7]
HD 92206C
Spectral type O8V + O9.7V + B2:[9]
B−V color index 0.119[2]
J−H color index 0.064[7]
J−K color index 0.084[7]
Astrometry
HD 92206A
Proper motion (μ) RA: -7.290[1] mas/yr
Dec.: 2.814[1] mas/yr
Parallax (π)0.3881±0.0217 mas[1]
Distance8,400 ± 500 ly
(2,600 ± 100 pc)
HD 92206B
Proper motion (μ) RA: -7.176[3] mas/yr
Dec.: 2.844[3] mas/yr
Parallax (π)0.4395 ± 0.015 mas[3]
Distance7,400 ± 300 ly
(2,280 ± 80 pc)
HD 92206C
Proper motion (μ) RA: -7.538[4] mas/yr
Dec.: 2.206[4] mas/yr
Parallax (π)0.6476±0.0866 mas[4]
Distanceapprox. 5,000 ly
(approx. 1,500 pc)
Orbit[9]
PrimaryHD 92206C O8V
CompanionHD 92206C O9.7V
Period (P)2.022504(12) d
Semi-major axis (a)21.8±0.4 R☉
Eccentricity (e)0
Semi-amplitude (K1)
(primary)		209.3±4.6 km/s
Semi-amplitude (K2)
(secondary)		289.1±7.8 km/s
Details
HD 92206A
Luminosity170,000 (bolometric)[8] L☉
Age≲1[10] Myr
HD 92206A2
Mass0.5-1[8] M☉
Age~1[8] Myr
HD 92206B
Luminosity170,000 (bolometric)[8] L☉
HD 92206C O8V
Luminosity112,000 (bolometric)[8] L☉
Rotational velocity (v sin i)146±30[9] km/s
HD 92206C O9.7V
Rotational velocity (v sin i)120±5[9] km/s
HD 92206C B2
Rotational velocity (v sin i)67±8[9] km/s
Other designations
CD−57° 3380, CPD−57° 3584, GC 14621, HD 92206, SAO 238269, PPM 339253, WDS J10374-5837AB, GSC 08613-01825, NGC 3324 2, ALS 1697[11]
HD 92206A: CD−57° 3380A, Gaia DR3 5350671494307479808, HD 92206A, CCDM J10374-5837A, WDS J10374-5837A, TIC 458230570, TYC 8613-1825-1, 2MASS J10372226-5837229[12]
HD 92206B: CD−57° 3380B, CPD−57° 3584B, Gaia DR3 5350671498620168448, HD 92206B, WDS J10374-5837B, TIC 458230572, 2MASS J10372295-5837230, NGC 3324 5, ALS 17532[13]
HD 92206C: CD−57° 3378, CPD−57° 3580, Gaia DR3 5350671459947742336, GC 14618, HD 92206C, SAO 238266, PPM 339247, TIC 458230632, TYC 8613-780-1, GSC 08613-00780, 2MASS J10371860-5837419, NGC 3324 4, LS 1695[14][9]
Database references
SIMBADA
B
C

HD 92206 is a Henry Draper Catalogue designation given to a collection of stars in the southern constellation of Carina. It consists of two systems; HD 92206AB, where component A is itself a spectroscopic binary;[5] and the trinary HD 92206C.[9] They are the brightest stars in NGC 3324 and the ionizing stars of the associated emission nebula Gum 31 (IC 2599).[5] The relationship between AB and C is disputed: some state that they are all part of a singular multiple star system,[15] whereas others treat AB and C as neighboring star systems that together "form a compact group."[16] All of their components are young (age ≲1 Myr[10]), massive OB stars near the zero-age main sequence.[5] Two other objects, HD 92206A2 and C2, have been discovered in the immediate vicinity, which are both likely less massive late-type stars based on their X-ray profile.[8]

  1. ^ a b c d Cite error: The named reference EDR3_A was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference TYC2000 was invoked but never defined (see the help page).
  3. ^ a b c d e Cite error: The named reference EDR3_B was invoked but never defined (see the help page).
  4. ^ a b c d e Cite error: The named reference EDR3_C was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference Cappa2008 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference Sota2014 was invoked but never defined (see the help page).
  7. ^ a b c d e f Cite error: The named reference 2MASS was invoked but never defined (see the help page).
  8. ^ a b c d e f g Cite error: The named reference Preibisch2014 was invoked but never defined (see the help page).
  9. ^ a b c d e f g Cite error: The named reference Mayer2017 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference Fujita2021 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference SIMBAD_A was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference SIMBAD_B was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference SIMBAD_C was invoked but never defined (see the help page).
  15. ^ Cite error: The named reference Hubrig2013 was invoked but never defined (see the help page).
  16. ^ Cite error: The named reference Campillay2007 was invoked but never defined (see the help page).
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