b Lupi

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 b Lup, HR 5571, HD 132058, SAO 225335, FK5: 552
constellation Lupus

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

position, motion, parallax:

position (J2000) RA: 14h 58min 31,9sec DEC: -43 8' 2''
position (J1900) RA: 14h 51min 58,8sec DEC: -42 43' 52''
proper motion (J2000) RA: -0,035 arcsec/a DEC: -0,039 arcsec/a
radial velocity 0 km/s
note: spectroscopic binaries
rotational velocity 127 km/s (uncertain) (variable)


visual magnitude 2,68
(V on UBV Johnson system)

spectral / color information

spectral class B2III/IV
B-V-magnitude -0,22
U-B-magnitude -0,87
R-I-magnitude -0,17

miscellaneous information

note (category: group membership): Sco-Cen stream; Sco-Cen assoc.; probable member of Sco-Cen cluster; upper Cen group of Sco-Cen assoc.

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

position, motion, parallax:

position (J2000) RA: 14h 58min 31,929sec DEC: -43 8' 2,4'' 0,06 arcsec source: 15
proper motion (J2000) RA: -0,0032 arcsec/a DEC: -0,039 arcsec/a source: 25
radial velocity 0 km/s source: 25
galactic coord. (B1950) longitude: 326,26 latitude: 13,91
GCI unit vector (J2000) X: -0,51931 Y: -0,5127 Z: -0,683707


visual 2,68 (observed) source: 25
photovisual 2,8 source: 2
photographic 2,6 source: 2

spectral information:

spectral class B2 source: 96
Morgan-Keenan B2III/IV source: 25
B-magnitude 2,46 0,05 B-V-magnitude -0,22
U-magnitude 1,59 0,05 U-B-magnitude -0,87


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: 14h 55min 14,787sec DEC: -42 56' 2,06'' 0,01 arcsec
position (J2000) RA: 14h 58min 31,91sec DEC: -43 8' 2,46''
proper motion J1950 (FK4) RA: -0,0034 arcsec/a DEC: -0,043 arcsec/a 0,002 arcsec/a in RA
0,002 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0033 arcsec/a DEC: -0,04 arcsec/a
source of proper motion data Determined by source catalog


visual 2,8 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class B2p
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.


source catalogue FK4, catalogue number: 552
Durchmusterung CD-42 9853
Boss General Catalogue 20128
Henry Draper Catalogue 132058