b Pyxidis


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


catalogues and names b Pyx, HR 3438, HD 74006, SAO 199490, FK5: 2681, WDS 08401-3518
constellation Pyxis

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


position, motion, parallax:

position (J2000) RA: 8h 40min 6,2sec DEC: -35 18' 30''
position (J1900) RA: 8h 36min 11,2sec DEC: -34 57' 12''
proper motion (J2000) RA: 0,012 arcsec/a DEC: -0,022 arcsec/a
radial velocity -13 km/s
note: spectroscopic binaries
trigonometric parallax 0,018 arcsec

magnitude

visual magnitude 3,97
(V on UBV Johnson system)

spectral / color information

spectral class G7Ib-II
B-V-magnitude 0,94
U-B-magnitude 0,65
R-I-magnitude 0,48

double/multiple star system information

separation 12,6 arcsec
mag difference (of double or brightest multiple) 8,5
note Worley (1978) update of the IDS

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

position, motion, parallax:

position (J2000) RA: 8h 40min 6,154sec DEC: -35 18' 30,04'' 0,19 arcsec source: 16
proper motion (J2000) RA: 0,0002 arcsec/a DEC: -0,023 arcsec/a source: 25
radial velocity -13 km/s source: 25
trigonometric parallax 0,018 0,002 arcsec source: 25
galactic coord. (B1950) longitude: 256,24 latitude: 3,9
GCI unit vector (J2000) X: -0,524829 Y: 0,624898 Z: -0,577976

magnitude:

visual 3,97 (observed) source: 25
photovisual 4 source: 2
photographic 4,8 source: 2

spectral information:

spectral class G5 source: 96
Morgan-Keenan G7Ib-II source: 25
B-magnitude 4,91 0,05 B-V-magnitude 0,94
U-magnitude 5,56 0,05 U-B-magnitude 0,65

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 12,7 arcsec
magnitude difference between brightest and second brightest component 8,5
position angle 118

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
16 PPM North and PPM South Catalogs and PPM Supplement
Roser, S., and U. Bastian, "Catalogue of Positions and Proper Motions," A&AS, Vol. 74, p. 449, 1988, and Bastian, U., et al., "Catalogue of Positions and Proper Motions - South," 1993
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: 8h 38min 8,645sec DEC: -35 7' 47,4'' 0,017 arcsec
position (J2000) RA: 8h 40min 6,215sec DEC: -35 18' 29,5''
proper motion J1950 (FK4) RA: 0,0012 arcsec/a DEC: -0,018 arcsec/a 0,004 arcsec/a in RA
0,004 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0016 arcsec/a DEC: -0,015 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 4 (accuracy: 2 decimals)
source of visual magnitude data Taken from Harvard or San Luis photometry.

spectral information:

spectral class G5
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue GC, catalogue number: 11923
Durchmusterung CD-34 5128
Boss General Catalogue 11923
Henry Draper Catalogue 74006

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

position and proper motion:

position (J2000) RA: 8h 40,1min DEC: -35 18'
proper motion (J2000) RA: 0,012 arcsec/a DEC: -0,022 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
- 1943 2 118 12,7'' 3,97 12,5 G7Ib-II RST4894

discoverer information:

discoverer code discoverer reference
RST4894 Rossiter, R.A. -

notes:

note Beta Pyx. A is a spectroscopic binary.