b Chamaeleontis


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

  4. Combined General Catalogue of Variable Stars (suspected variables)


catalogues and names b Cha, NSV 05532, HR 4674, HD 106911, SAO 256924, FK5: 459
constellation Chamaeleon

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


position, motion, parallax:

position (J2000) RA: 12h 18min 20,7sec DEC: -79 18' 44''
position (J1900) RA: 12h 12min 28,6sec DEC: -78 45' 25''
proper motion (J2000) RA: -0,048 arcsec/a DEC: 0,017 arcsec/a
radial velocity 23 km/s
rotational velocity 255 km/s (uncertain) (variable)

magnitude

visual magnitude 4,26
(V on UBV Johnson system)

spectral / color information

spectral class B5Vn
B-V-magnitude -0,12
U-B-magnitude -0,51
R-I-magnitude -0,1

variability information

variable star identification 5532
note (category: variability): 4.2 - 4.24v.

miscellaneous information

note (category: group membership): Sco-Cen assoc.
note (category: miscellaneous): Old disk population runaway star.

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

position, motion, parallax:

position (J2000) RA: 12h 18min 20,709sec DEC: -79 18' 43,93'' 0,06 arcsec source: 15
proper motion (J2000) RA: -0,0172 arcsec/a DEC: 0,017 arcsec/a source: 25
radial velocity 23 km/s source: 25
galactic coord. (B1950) longitude: 301,34 latitude: -16,54
GCI unit vector (J2000) X: -0,184863 Y: -0,014829 Z: -0,982652

magnitude:

visual 4,26 (observed) source: 25
photovisual 4,4 source: 2
photographic 4,3 source: 2

spectral information:

spectral class B5 source: 96
Morgan-Keenan B5Vn source: 25
B-magnitude 4,14 0,05 B-V-magnitude -0,12
U-magnitude 3,63 0,05 U-B-magnitude -0,51

variability information:

source of data: 28
variability type 9
var. amplitude 0,06

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: 12h 15min 22,132sec DEC: -79 2' 4,83'' 0,008 arcsec
position (J2000) RA: 12h 18min 20,641sec DEC: -79 18' 43,89''
proper motion J1950 (FK4) RA: -0,0152 arcsec/a DEC: 0,015 arcsec/a 0,002 arcsec/a in RA
0,002 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0178 arcsec/a DEC: 0,018 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 4,4 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class B5
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 459
Durchmusterung CP-78 741
Boss General Catalogue 16775
Henry Draper Catalogue 106911

data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)

position:

position (J1950) RA: 12h 15min 22,1sec DEC: -79 2' 5''

variability informations:

magnitute at max. brightness 4,24
magnitute at min. brightness 4,3
photometric system visual, photovisual or Johnson's V

spectral information

spectral class B6

references

to a study 630791D (designation: HR 4674)

miscanellous

There are notes in the published catalog (Kukarkin et al.(1982)).