Bellatrix


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. The Washington Visual Double Star Catalog, 1996.0

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


catalogues and names Bellatrix, g Ori, NSV 01972, 24 Ori, HR 1790, HD 35468, SAO 112740, FK5: 201, WDS 05251+0621
other names Amazon Star, the
constellation Orion

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

note (category: star names): BELLATRIX; the Amazon Star.

object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978)

position, motion, parallax:

position (J2000) RA: 5h 25min 7,9sec DEC: +6 20' 59''
position (J1900) RA: 5h 19min 46sec DEC: +6 15' 33''
proper motion (J2000) RA: -0,009 arcsec/a DEC: -0,014 arcsec/a
radial velocity 18 km/s
note: spectroscopic binaries
rotational velocity 59 km/s (uncertain) (variable)
trigonometric parallax 0,029 arcsec
note (category: radial and/or rotational velocities): Expanding circumstellar shell. AEROBEE evidence for mass ejection up to 1600k/s.

magnitude

visual magnitude 1,64
(V on UBV Johnson system)

spectral / color information

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

variability information

variable star identification 1972

double/multiple star system information

separation 179 arcsec
mag difference (of double or brightest multiple) 10,5
note Worley (1978) update of the IDS

miscellaneous information

note (category: group membership): Ori OB1.
note (category: stellar radii or diameters): Diam. = 0.00070 - 0.00072".

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

position, motion, parallax:

position (J2000) RA: 5h 25min 7,857sec DEC: +6 20' 58,74'' 0,06 arcsec source: 15
proper motion (J2000) RA: -0,0006 arcsec/a DEC: -0,014 arcsec/a source: 25
radial velocity 18 km/s source: 25
trigonometric parallax 0,029 0,003 arcsec source: 25
galactic coord. (B1950) longitude: 196,93 latitude: -15,95
GCI unit vector (J2000) X: 0,150629 Y: 0,982385 Z: 0,110596

magnitude:

visual 1,64 (observed) source: 25
photovisual 1,7 source: 2

spectral information:

spectral class B2 source: 96
Morgan-Keenan B2III source: 25
B-magnitude 1,42 0,05 B-V-magnitude -0,22
U-magnitude 0,55 0,05 U-B-magnitude -0,87

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 179 arcsec
magnitude difference between brightest and second brightest component 10,6
position angle 144

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
19 WDS Catalog
Worley, C.E., and G.G. Douglass, Washington Catalog of Visual Double Stars 1996.0, United States Naval Observatory, 1996
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: 5h 22min 26,828sec DEC: +6 18' 21,71'' 0,004 arcsec
position (J2000) RA: 5h 25min 7,855sec DEC: +6 20' 58,66''
proper motion J1950 (FK4) RA: -0,0008 arcsec/a DEC: -0,014 arcsec/a 0,001 arcsec/a in RA
0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0006 arcsec/a DEC: -0,015 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 1,7 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class B2
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 201
Durchmusterung BD+06 919
Boss General Catalogue 6668
Henry Draper Catalogue 35468

data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)

position and proper motion:

position (J2000) RA: 5h 25,1min DEC: +6 21'
proper motion (J2000) RA: -0,009 arcsec/a DEC: -0,014 arcsec/a

double/multiple star system information:

component year number of measures position angle angular separation magnitude of 1st component magnitude of 2nd component spectral class(es) discoverer code
- 1879 2 144 179'' 1,64 12,2 B2III BUP 78

discoverer information:

discoverer code discoverer reference
BUP 78 - -

notes:

note Gamma Ori.

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

position:

position (J1950) RA: 5h 22min 26,8sec DEC: +6 18' 22''

variability informations:

magnitute at max. brightness 1,59
magnitute at min. brightness 1,64
photometric system visual, photovisual or Johnson's V

spectral information

spectral class B2

references

to a study 0832D (designation: GAMMA ORI)

miscanellous

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