j Virginis
| catalogues and names | j Vir, NSV 06675, 105 Vir, HR 5409, HD 126868, SAO 139951, FK5: 533, WDS 14282-0214A |
| constellation | Virgo |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 14h 28min 12,1sec | DEC: -2° 13' 41'' |
| position (J1900) | RA: 14h 23min 2,9sec | DEC: -1° 46' 47'' |
| proper motion (J2000) | RA: -0,139 arcsec/a | DEC: -0,002 arcsec/a |
| radial velocity | -10 km/s note: spectroscopic binaries |
|
| rotational velocity | 0 km/s (uncertain) (variable) | |
| trigonometric parallax | 0,047 arcsec | |
| note (category: dynamical parallaxes): | 0.020". |
magnitude
| visual magnitude | 4,81 (V on UBV Johnson system) |
spectral / color information
| spectral class | G2IV |
| B-V-magnitude | 0,7 |
| U-B-magnitude | 0,21 |
| R-I-magnitude | 0,37 |
variability information
| variable star identification | 6675 |
double/multiple star system information
| number of components of multiple star system | 3 |
| separation | 5,1 arcsec |
| mag difference (of double or brightest multiple) | 3,9 |
| component ID | AB |
| note (category: double and multiple data): | AB binary. Combined mag., colors. |
| note (category: spectroscopic binaries): | ADS 9273B, 9.7 G4V, -8Vk/s. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 14h 28min 12,144sec | DEC: -2° 13' 40,67'' | ±0,06 arcsec | source: 15 |
| proper motion (J2000) | RA: -0,0092 arcsec/a | DEC: -0,002 arcsec/a | source: 25 | |
| radial velocity | -10 km/s | source: 25 | ||
| trigonometric parallax | 0,047 | ±0,005 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 345,23° | latitude: 52,51° | ||
| GCI unit vector (J2000) | X: -0,7975 | Y: -0,602065 | Z: -0,038876 | |
magnitude:
| visual | 4,81 (observed) | source: 25 |
| photovisual | 5 | source: 2 |
spectral information:
| spectral class | K0 | source: 96 | |
| Morgan-Keenan | G2IV | source: 25 | |
| B-magnitude | 5,51 ±0,05 | B-V-magnitude | 0,7 |
| U-magnitude | 5,72 ±0,05 | U-B-magnitude | 0,21 |
double/multiple star system information:
| separation between brightest and second brightest component | 5,1 arcsec |
| magnitude difference between brightest and second brightest component | 4,5 |
| position angle | 110 ° |
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: 14h 25min 37,362sec | DEC: -2° 0' 17,26'' | ±0,004 arcsec |
| position (J2000) | RA: 14h 28min 12,15sec | DEC: -2° 13' 40,63'' | |
| proper motion J1950 (FK4) | RA: -0,0094 arcsec/a | DEC: -0,005 arcsec/a | ±0,001 arcsec/a in RA ±0,001 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0,0092 arcsec/a | DEC: -0,002 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5 (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: 533 |
| Durchmusterung | BD-01 2957 |
| Boss General Catalogue | 19504 |
| Henry Draper Catalogue | 126868 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 14h 28,2min | DEC: -2° 14' |
| proper motion (J2000) | RA: -0,139 arcsec/a | DEC: -0,002 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 |
| AB | 1829 | 52 | 110° | 3,7'' | 5 | 9,5 | G2III | STF1846 |
| 1962 | - | 5,1'' | ||||||
| AC | 1911 | 2 | 209° | 95,1'' | 5 | 12,6 | - | STF1846 |
| 1960 | 205° | 92,8'' |
discoverer information:
| discoverer code | discoverer | reference |
| STF1846 | Struve, F.G.W. | - |
notes:
| note | Phi Vir. B is a spectroscopic binary. |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (J1950) | RA: 14h 25min 37,4sec | DEC: -2° 0' 17'' |
variability informations:
| magnitute at max. brightness | 4,76 |
| magnitute at min. brightness | 4,82 |
| photometric system | visual, photovisual or Johnson's V |
spectral information
| spectral class | G2 |
references
| to a study | 0807D (designation: 246G VIR) |
miscanellous
| There are notes in the published catalog (Kukarkin et al.(1982)). |