HD 110432

Source: Wikipedia, the free encyclopedia.
HD 110432
Location of BZ Crucis (circled). The other star shown overlapping/underlying the dark nebula is HD 109000 (HR 4771) which is a red/brown star about half the distance to the nebula, having parallax of 12.8 ± 0.05 thus about 250 light years away[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Crux
Right ascension 12h 42m 50.2656s[1]
Declination −63° 03′ 31.048″[1]
Apparent magnitude (V) 5.24 - 5.45[2]
Characteristics
Spectral type B1IVe[3]
U−B color index −0.82[4]
B−V color index +0.27[4]
Variable type γ Cas[2]
Distance
1,370 ± 70 ly
(420 ± 20 pc)
Absolute magnitude (MV)−2.56[6]
Details
Rotational velocity (v sin i)
300–400[3] km/s
HIP 62027.[8]
Database references
SIMBADdata
BZ Crucis is the bright star between the open clusters NGC 4609 and Hogg 15

HD 110432 is a Be star in the south-east of Crux, behind the center of the southern hemisphere's dark

variable star designation BZ Crucis. It is not known to be a member of a binary system, although it is probably a member of the open cluster NGC 4609. This star is moderately luminous in the X-ray band, with a variable energy emission of 1032–33 erg s−1 in the range 0.2−12 keV. The X-ray emission may be caused by magnetic activity, or possibly by accretion onto a white dwarf companion.[3]

A visual band light curve for BZ Crucis, adapted from Sarty et al. (2011)[9]

Distance

The distance of 388 

Gaia Data Release 2 is even further at 420 pc.[1]

References

  1. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  2. ^
    Bibcode:2009yCat....102025S
    .
  3. ^
    S2CID 14593244
    .
  4. ^
    Bibcode:1973MNSSA..32...11C
    .
  5. Bibcode:1967IAUS...30...57E
    .
  6. S2CID 119257644
    .
  7. S2CID 11256230
    .
  8. Centre de Données astronomiques de Strasbourg
    . Retrieved 2010-12-09.
  9. S2CID 250669202
    . Retrieved 17 December 2021.
  10. S2CID 18759600
    .
Retrieved from "https://en.wikipedia.org/w/index.php?title=HD_110432&oldid=1156344816"