k Velorum

The object was found in the following catalogues:
  1. The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version)

  2. SKY2000 - Master Star Catalog

  3. Smithsonian Astrophysical Observatory Star Catalog

catalogues and names k Vel, HR 3734, HD 81188, SAO 236891, FK5: 353
constellation Vela

data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)


position, motion, parallax:

position (J2000) RA: 9h 22min 6,8sec DEC: -55° 0' 39''
position (J1900) RA: 9h 19min 1sec DEC: -54° 35' 1''
proper motion (J2000) RA: -0,008 arcsec/a DEC: 0,009 arcsec/a
radial velocity 22 km/s
note: spectroscopic binaries
note: orbital data avaible
rotational velocity 49 km/s (uncertain) (variable)
trigonometric parallax 0,013 arcsec

magnitude

visual magnitude 2,5
(V on UBV Johnson system)

spectral / color information

spectral class B2IV-V
B-V-magnitude -0,18
U-B-magnitude -0,75
R-I-magnitude -0,19

double/multiple star system information

note (category: spectroscopic binaries): 116.65d, K 46.5k/s, V0 +21.9k/s, asini 73.2.

miscellaneous information

note (category: group membership): Sco-Cen assoc.
note (category: miscellaneous): Third UHURU Catalogue suggests Kappa Vel as optical counterpart of 3U0918-55, but HR 3717 is much closer.

data from SKY2000 - Master Star Catalog (Myers+ 1997)

position, motion, parallax:

position (J2000) RA: 9h 22min 6,828sec DEC: -55° 0' 38,6'' ±0,06 arcsec source: 15
proper motion (J2000) RA: -0,001 arcsec/a DEC: 0,009 arcsec/a source: 25
radial velocity 22 km/s source: 25
trigonometric parallax 0,013 ±0,001 arcsec source: 25
galactic coord. (B1950) longitude: 275,89° latitude: -3,54°
GCI unit vector (J2000) X: -0,442648 Y: 0,364522 Z: -0,819259

magnitude:

visual 2,5 (observed) source: 25
photovisual 2,6 source: 2
photographic 2,5 source: 2

spectral information:

spectral class B3 source: 96
Morgan-Keenan B2IV-V source: 25
B-magnitude 2,32 ±0,05 B-V-magnitude -0,18
U-magnitude 1,57 ±0,05 U-B-magnitude -0,75

sources:

2 HD and HDE Catalogs
Cannon, A.J., and E.C. Pickering, Harvard Annals, Vols 91-99, 1918-24, Cambridge, Massachusetts: Harvard University; Cannon, A.J., Harvard Annals, Vol. 100, 1925-36, Cambridge, Massachusetts: Harvard University; and Cannon, A.J., and M. Walton Mayall, Harvard Annals, Vol. 112, 1949, Cambridge, Massachusetts: Harvard University
15 FK5, FK5 Extension and FK5 Supplement
Fricke, W., H. Schwan and T. Lederle, "Fifth Fundamental Catalogue (FK5), Part I. The Basic Fundamental Stars," Veroff. Astronomisches Recheninstitut, No. 32, Heidelberg, Germany, 1988, and Fricke, W., H. Schwan, and T.E. Corbin, "Fifth Fundamental Catalogue (FK5), Part II. The FK5 Extension," Veröff. Astronomisches Recheninstitut, No. 33, Heidelberg, Germany, 1991
25 Bright Star Catalogue, 5th edition
Hoffleit, D. and Warren, W.H. Jr., The Bright Star Catalogue, 5th Revised Edition, Version 2, 1994
96 SAO or HD/HDE Catalog
Reference from Value 1 or Reference from Value 2

data from Smithsonian Astrophysical Observatory Star Catalog (SAO Staff 1966; USNO, ADC 1990)

position and proper motion:

position (J1950) RA: 9h 20min 33,853sec DEC: -54° 47' 47,3'' ±0,011 arcsec
position (J2000) RA: 9h 22min 6,848sec DEC: -55° 0' 38,52''
proper motion J1950 (FK4) RA: -0,0009 arcsec/a DEC: 0,008 arcsec/a ±0,002 arcsec/a in RA
±0,002 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0007 arcsec/a DEC: 0,009 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 2,6 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class B3
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 353
Durchmusterung CP-54 2219
Boss General Catalogue 12938
Henry Draper Catalogue 81188