Upsilon Lupi

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Upsilon Lupi
The location of Upsilon Lupi (υ) in the constellation of Lupus (shown as a red target's bullseye).
Observation data
ICRS
)
Constellation Lupus
Right ascension 15h 24m 45.00855s[1]
Declination −39° 42′ 36.9524″[1]
Apparent magnitude (V) 5.37[2] (5.37 + 10.90)[3]
Characteristics
Spectral type A0p Si[4]
B−V color index −0.11[2]
Distance
410 ± 30 ly
(125 ± 10 pc)
Absolute magnitude (MV)−0.10[6]
Details
υ Lup A
Rotational velocity (v sin i)
0[8] km/s
HR 5719, SAO 206597.[9]
Database references
SIMBADdata

Upsilon Lupi,

arc seconds along a position angle of 40°.[3]

The brighter member, component A, is a

quadratic field strength of (764.7±311.3)×10−4 T.[11] The star is radiating 113 times the solar luminosity from its outer atmosphere at an effective temperature of 10,049 K.[7]

The magnitude 10.9 companion star, component B, has a visual magnitude of 10.90.[3] It may be the source of the X-ray emission detected coming from these coordinates.[12]

References

  1. ^
    S2CID 18759600
    .
  2. ^
    Bibcode:1968MNSSA..27...11C
    .
  3. ^
    doi:10.1086/323920
    .
  4. ^
    Bibcode:1982mcts.book.....H
    .
  5. S2CID 59451347
    , A61.
  6. S2CID 119257644
    .
  7. ^
    S2CID 118665352
    .
  8. Bibcode:1970crvs.book.....U
    .
  9. ^ "ups Lup". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-03-10.
  10. S2CID 14878976
    .
  11. S2CID 120268049
    .
  12. doi:10.1051/0004-6361:20077429
    .
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