V0983 Cen


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 V0983 Cen, 3 Cen, HR 5210, HD 120709, SAO 204916, WDS 13518-3300A
constellation Centaurus

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


position, motion, parallax:

position (J2000) RA: 13h 51min 49,6sec DEC: -32 59' 40''
position (J1900) RA: 13h 46min 3,1sec DEC: -32 29' 53''
proper motion (J2000) RA: -0,033 arcsec/a DEC: -0,038 arcsec/a
radial velocity 10 km/s
rotational velocity 12 km/s (uncertain) (variable)
dynamical parallax 0,017 arcsec

magnitude

visual magnitude 4,56
(V on UBV Johnson system)

spectral / color information

spectral class B5IIIp
B-V-magnitude -0,13
U-B-magnitude -0,6
R-I-magnitude -0,13
note (category: spectra): Strong phosphorus. Abnormally weak helium. 3 Cen A shows excess of phosphorus by factor of 100, krypton by 1000, gallium by 10,000, and deficiencies of sulphur and helium.

double/multiple star system information

separation 7,9 arcsec
mag difference (of double or brightest multiple) 1,5
note Worley (1978) update of the IDS
note (category: double and multiple data): Mag. for combined light with HR 5211, 4.32V. Probably not binary.

miscellaneous information

note (category: group membership): Sco-Cen cluster; Sco-Cen stream; member of the local association (Pleiades group); upper Cen group of Sco-Cen assoc.; member of Pleiades group.

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

position, motion, parallax:

position (J2000) RA: 13h 51min 49,56sec DEC: -32 59' 39,4'' 0,76 arcsec source: 18
proper motion (J2000) RA: -0,0031 arcsec/a DEC: -0,036 arcsec/a source: 25
radial velocity 10 km/s source: 25
galactic coord. (B1950) longitude: 317,29 latitude: 28,19
GCI unit vector (J2000) X: -0,740849 Y: -0,393195 Z: -0,544555

magnitude:

visual 4,56 (observed) source: 25
photovisual 4,7 source: 2
photographic 4,6 source: 2

spectral information:

spectral class B5 source: 96
Morgan-Keenan B5IIIp source: 25
B-magnitude 4,43 0,05 B-V-magnitude -0,13
U-magnitude 3,83 0,05 U-B-magnitude -0,6

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 7,9 arcsec
magnitude difference between brightest and second brightest component 1,5
position angle 106

component magnitude spectral class catalogue(s)/name(s)
A 4,56 B5 3 Cen, HR 5210, HD 120709, SAO 204916
B 6,06 B5 3 Cen, HR 5211, HD 120710, SAO 204917

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
18 Hipparcos Input Catalog Version 2 Annex
Turon, C., et al., "The Hipparcos Input Catalog, Version 2," Centre de Donnees Stellaires Information Bulletin, Vol. 43, p. 5, 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: 13h 48min 55,945sec DEC: -32 44' 49,54'' 0,023 arcsec
position (J2000) RA: 13h 51min 49,58sec DEC: -32 59' 39,8''
proper motion J1950 (FK4) RA: -0,0027 arcsec/a DEC: -0,042 arcsec/a 0,004 arcsec/a in RA
0,004 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0027 arcsec/a DEC: -0,038 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 4,7 (accuracy: 2 decimals)
source of visual magnitude data Taken from Harvard or San Luis photometry.

spectral information:

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

remarks for duplicity and variability

Double star in Aitken's Double Star Catalogue (Aitken 1932)

catalogues

source catalogue GC, catalogue number: 18724
Durchmusterung CD-32 9676A
Boss General Catalogue 18724
Henry Draper Catalogue 120709

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

position and proper motion:

position (J2000) RA: 13h 51,8min DEC: -33 0'
proper motion (J2000) RA: -0,033 arcsec/a DEC: -0,041 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
- 1783 38 112 8,5'' 4,56 6,06 B5III B8V H 101
1986 106 7,9''

discoverer information:

discoverer code discoverer reference
H 101 Herschel, W. -

notes:

note H III 101. 3 Cen.