Chi Lupi

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Template:Short description

χ Lupi
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Lupus
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 3.957[1]
Characteristics
Spectral type B9.5V + A2Vm[2]
U−B Template:Engvar −0.13[3]
B−V Template:Engvar −0.04[3]
R−I Template:Engvar −0.07[3]
Astrometry
Radial velocity (Rv)5 ± 20[1] km/s
Proper motion (μ) RA: −5.92[1] mas/yr
Dec.: −24.91[1] mas/yr
Parallax (π)15.86±0.84 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Details[4]
χ Lup A
MassScript error: No such module "val". Template:Solar mass
RadiusScript error: No such module "val". Template:Solar radius
Luminosity63[5] Template:Solar luminosity
Surface gravity (log g)4.08[5] cgs
Temperature10,200[5] K
Rotational velocity (v sin i)0[3] km/s
AgeScript error: No such module "val". Myr
χ Lup B
MassScript error: No such module "val". Template:Solar mass
RadiusScript error: No such module "val". Template:Solar radius
Surface gravity (log g)4.2 cgs
Temperature9,200 K
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
χ Lup, Chi Lupi, Chi Lup, 5 Lupi, 5 Lup, CD−33 10754, CPD−33 3933, FK5 586, GC 21281, HD 141556, HIP 77634, HR 5883, PPM 294334, SAO 207040[1]
Database references
SIMBADdata

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Chi Lupi (Chi Lup, χ Lupi, χ Lup) is a spectroscopic binary star in the constellation of Lupus.[1] It has an apparent visual magnitude of approximately 3.957.[1] The primary star in the binary is a mercury-manganese star of spectral type B9.5V; the secondary is a metallic-lined star of type A2Vm.[2]

This system is a proper motion member of the Upper Scorpius sub-group in the Scorpius–Centaurus OB association, the nearest such co-moving association of massive stars to the Sun.[5] The Upper Scorpius subgroup contains thousands of stars with an average age of 11 million years old at mean distances of 145 parsecs (470 light years).[6]

References

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  1. ↑ a b c d e f g h i j Template:Cite simbad
  2. ↑ a b On the Ga II and Ga III Resonance Lines and the Implication for Chemical Stratification in HgMn Stars, K. E. Nielsen et al., Astronomical Journal 130, #5 (November 2005), pp. 2312–2317, Bibcode:2005AJ....130.2312NScript error: No such module "check bibcode"., Script error: No such module "CS1 identifiers"..
  3. ↑ a b c d HR 5883, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line August 14, 2008.
  4. ↑ Script error: No such module "citation/CS1".
  5. ↑ a b c d Script error: No such module "citation/CS1".
  6. ↑ Script error: No such module "Citation/CS1".

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Template:Stars of Lupus

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