HD 73882

HD 73882

A light curve for NX Velorum, plotted from Hipparcos data[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Vela
Right ascension 08h 39m 09.5341s
Declination −40° 25′ 09.2608″
Apparent magnitude (V) 7.19 - 7.29[2]
Characteristics
Evolutionary stage subgiant
Spectral type O8.5IV[3]
Apparent magnitude (g) 7.356[4]
Variable type eclipsing[5]
Astrometry
Radial velocity (Rv)3.56±0.13[6] km/s
Proper motion (μ) RA: -4.71±0.05 mas/yr[4]
Dec.: 3.44±0.06 mas/yr[4]
Parallax (π)1.34 ± 0.06 mas[4]
Distance2,400 ± 100 ly
(750 ± 30 pc)
Absolute magnitude (MV)2.46±0.17[7]
Details
Metallicity [Fe/H]−0.60±0.10[6] dex
Other designations
2MASS J08390953-4025092, CD-39 4631, HIP 42433, GSC 07666-01830, PPM 313370, NX Vel
HD 73882A: TYC 7666-1830-1, Gaia DR2 5528383187882877312
HD 73882B: TYC 7666-1830-2, Gaia DR2 5528383192183392768
Database references
SIMBADdata

HD 73882 is a visual binary system with the components separated by 0.6″ and a combined spectral class of O8.[8] One of stars is an eclipsing binary system. The period of variability is listed as both 2.9199 days and 20.6 days, possibly due to the secondary being a spectroscopic binary star.[9][10]

The system lies in the constellation of Vela about 2,400 light years away from the Sun and is a member of the open cluster Ruprecht 64.[11]

  1. ^ Cite error: The named reference HIPCurve was invoked but never defined (see the help page).
  2. ^ "NX Velorum", International Variable Star Index, retrieved 2022-01-03
  3. ^ Cite error: The named reference Zhao2015 was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference EDR3 was invoked but never defined (see the help page).
  5. ^ Samus, N. N.; et al. (2017), "General Catalogue of Variable Stars", Astronomy Reports, 5.1, 61 (1): 80–88, Bibcode:2017ARep...61...80S, doi:10.1134/S1063772917010085, S2CID 125853869, retrieved 2021-11-27
  6. ^ a b De Cia, Annalisa; Jenkins, Edward B.; Fox, Andrew J.; Ledoux, Cédric; Ramburuth-Hurt, Tanita; Konstantopoulou, Christina; Petitjean, Patrick; Krogager, Jens-Kristian (2021), "Large metallicity variations in the Galactic interstellar medium", Nature, 597 (7875): 206–208, arXiv:2109.03249, Bibcode:2021Natur.597..206D, doi:10.1038/s41586-021-03780-0, PMID 34497395, S2CID 237439613
  7. ^ Bagnulo, Stefano; Cox, Nick L. J.; Cikota, Aleksandar; Siebenmorgen, Ralf; Voshchinnikov, Nikolai V.; Patat, Ferdinando; Smith, Keith T.; Smoker, Jonathan V.; Taubenberger, Stefan; Kaper, Lex; Cami, Jan; the LIPS collaboration (2017), "Large Interstellar Polarisation Survey (LIPS)", Astronomy & Astrophysics, 608: A146, arXiv:1710.02439, doi:10.1051/0004-6361/201731459, S2CID 119431016
  8. ^ Shull, J. Michael; Danforth, Charles W. (2019), "Distances to Galactic OB Stars: Photometry versus Parallax", The Astrophysical Journal, 882 (2): 180, arXiv:1907.13148, Bibcode:2019ApJ...882..180S, doi:10.3847/1538-4357/ab357d, S2CID 199000762
  9. ^ Sota, A.; Apellániz, J. Maíz; Morrell, N. I.; Barbá, R. H.; Walborn, N. R.; Gamen, R. C.; Arias, J. I.; Alfaro, E. J. (2013), "The Galactic O-Star Spectroscopic Survey (Gosss). Ii. Bright Southern Stars", The Astrophysical Journal Supplement Series, 211 (1): 10, arXiv:1312.6222, Bibcode:2014ApJS..211...10S, doi:10.1088/0067-0049/211/1/10, S2CID 118847528
  10. ^ Sana, H.; Le Bouquin, J.-B.; Lacour, S.; Berger, J.-P.; Duvert, G.; Gauchet, L.; Norris, B.; Olofsson, J.; Pickel, D.; Zins, G.; Absil, O.; De Koter, A.; Kratter, K.; Schnurr, O.; Zinnecker, H. (2014), "Southern Massive Stars at High Angular Resolution: Observational Campaign and Companion Detection", The Astrophysical Journal Supplement Series, 215 (1): 15, arXiv:1409.6304, Bibcode:2014ApJS..215...15S, doi:10.1088/0067-0049/215/1/15, S2CID 53500788
  11. ^ Kharchenko, N. V.; Piskunov, A. E.; Röser, S.; Schilbach, E.; Scholz, R.-D. (2005), "Astrophysical parameters of Galactic open clusters", Astronomy and Astrophysics, 438 (3): 1163–1173, arXiv:astro-ph/0501674, Bibcode:2005A&A...438.1163K, doi:10.1051/0004-6361:20042523, S2CID 9079873