DL Crucis

DL Crucis
Location of DL Crucis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Crux
Right ascension 12h 14m 16.9255s[1]
Declination −64° 24′ 30.662″[1]
Apparent magnitude (V) 6.18[2]
Characteristics
Spectral type B1.5Ia[3]
U−B color index −0.73[2]
B−V color index 0.12[2]
Variable type α Cygni[4]
Astrometry
Radial velocity (Rv)-10.50[5] km/s
Proper motion (μ) RA: -5.62[1] mas/yr
Dec.: 0.15[1] mas/yr
Parallax (π)0.80 ± 0.30 mas[6]
Distanceapprox. 4,000 ly
(approx. 1,300 pc)
Absolute magnitude (MV)−6.9[7]
Details
Mass30[3] M☉
Radius42[7] R☉
Luminosity251,000[7] L☉
Surface gravity (log g)2.50[3] cgs
Temperature20,100[3] K
Rotational velocity (v sin i)43[3] km/s
Other designations
DL Cru, HIP 59678, HD 106343, CD-63° 732, HR 4653, GSC 08982-04743, CPD-63° 2203, GC 16707, SAO 251803
Database references
SIMBADdata

DL Crucis is a variable star in the constellation Crux.

  1. ^ a b c d Cite error: The named reference hipparcos was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference schild1983 was invoked but never defined (see the help page).
  3. ^ a b c d e Cite error: The named reference fraser2010 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference gcvs was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  6. ^ Gaia Collaboration (2016). "VizieR Online Data Catalog: Gaia DR1 (Gaia Collaboration, 2016)". VizieR On-line Data Catalog. 1337. Bibcode:2016yCat.1337....0G. doi:10.26093/cds/vizier.1337.
  7. ^ a b c Cite error: The named reference lefever2007 was invoked but never defined (see the help page).