Vindemiatrix

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 Vindemiatrix, e Vir, NSV 06064, 47 Vir, HR 4932, HD 113226, SAO 100384, FK5: 488, WDS 13022+1058
other names Vindemiator, Vendemiatrix, Almuredin, Provindemiator, Protrigetrix, Protrygetor, Alaraph
constellation Virgo

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

note (category: star names): VINDEMIATRIX; Vindemiator; Vendemiatrix; Almuredin; Provindemiator; Protrigetrix; Protrygetor; Alaraph, a name also applied to HR 4540 and 5056.

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

position, motion, parallax:

position (J2000) RA: 13h 2min 10,6sec DEC: +10° 57' 33''
position (J1900) RA: 12h 57min 11,9sec DEC: +11° 29' 48''
proper motion (J2000) RA: -0,273 arcsec/a DEC: 0,02 arcsec/a
radial velocity -14 km/s
note: suspected variable radial velocity
rotational velocity <17 km/s (uncertain) (variable)
trigonometric parallax 0,043 arcsec

magnitude

visual magnitude 2,83
(V on UBV Johnson system)

spectral / color information

spectral class G8IIIab
B-V-magnitude 0,94
U-B-magnitude 0,73
R-I-magnitude 0,45

variability information

variable star identification 6064

double/multiple star system information

separation 248,7 arcsec
mag difference (of double or brightest multiple) 8,9
note Worley (1978) update of the IDS

miscellaneous information

note (category: group membership): Probable Hyades group.

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

position, motion, parallax:

position (J2000) RA: 13h 2min 10,602sec DEC: +10° 57' 32,88'' ±0,06 arcsec source: 15
proper motion (J2000) RA: -0,0185 arcsec/a DEC: 0,02 arcsec/a source: 25
radial velocity -14 km/s source: 25
trigonometric parallax 0,043 ±0,004 arcsec source: 25
galactic coord. (B1950) longitude: 312,36° latitude: 73,63°
GCI unit vector (J2000) X: -0,945854 Y: -0,263094 Z: 0,190109

magnitude:

visual 2,83 (observed) source: 25
photovisual 3 source: 2

spectral information:

spectral class K0 source: 96
Morgan-Keenan G8IIIab source: 25
B-magnitude 3,77 ±0,05 B-V-magnitude 0,94
U-magnitude 4,5 ±0,05 U-B-magnitude 0,73

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 248,7 arcsec
magnitude difference between brightest and second brightest component 9,1
position angle 120 °

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: 12h 59min 41,21sec DEC: +11° 13' 38,9'' ±0,003 arcsec
position (J2000) RA: 13h 2min 10,599sec DEC: +10° 57' 32,98''
proper motion J1950 (FK4) RA: -0,0187 arcsec/a DEC: 0,017 arcsec/a ±0,001 arcsec/a in RA
±0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0186 arcsec/a DEC: 0,021 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 3 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class K0
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 488
Durchmusterung BD+11 2529
Boss General Catalogue 17687
Henry Draper Catalogue 113226

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

position and proper motion:

position (J2000) RA: 13h 2,2min DEC: +10° 58'
proper motion (J2000) RA: -0,273 arcsec/a DEC: 0,02 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 2 120° 240,9'' 2,83 11,9 G8IIIab BUP 147
1909 - 248,7''

discoverer information:

discoverer code discoverer reference
BUP 147 - -

notes:

note Epsilon Vir. Optical.

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

position:

position (J1950) RA: 12h 59min 41,2sec DEC: +11° 13' 39''

variability informations:

magnitute at max. brightness 2,65
magnitute at min. brightness 2,84
photometric system visual, photovisual or Johnson's V

spectral information

spectral class G8

references

to a study 290477D (designation: ZI 978)

miscanellous

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