k1Lupi
| catalogues and names | k1Lup, HR 5646, HD 134481, SAO 225525, FK5: 1398, WDS 15119-4844A |
| constellation | Lupus |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 15h 11min 56,1sec | DEC: -48° 44' 16'' |
| position (J1900) | RA: 15h 4min 58,8sec | DEC: -48° 21' 27'' |
| proper motion (J2000) | RA: -0,095 arcsec/a | DEC: -0,049 arcsec/a |
| radial velocity | -6 km/s note: variable radial velocity |
|
| rotational velocity | 202 km/s (uncertain) (variable) | |
magnitude
| visual magnitude | 3,87 (V on UBV Johnson system) |
spectral / color information
| spectral class | B9.5Vne |
| B-V-magnitude | -0,05 |
| U-B-magnitude | -0,13 |
| R-I-magnitude | -0,01 |
double/multiple star system information
| separation | 26,6 arcsec |
| mag difference (of double or brightest multiple) | 1,9 |
| note | Worley (1978) update of the IDS |
| note (category: double and multiple data): | CPM with HR 5647. |
miscellaneous information
| note (category: group membership): | Possible Pleiades group. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 15h 11min 56,081sec | DEC: -48° 44' 16,29'' | ±0,06 arcsec | source: 15 |
| proper motion (J2000) | RA: -0,0096 arcsec/a | DEC: -0,049 arcsec/a | source: 25 | |
| radial velocity | -6 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 325,46° | latitude: 7,89° | ||
| GCI unit vector (J2000) | X: -0,441435 | Y: -0,489982 | Z: -0,7517 | |
magnitude:
| visual | 3,87 (observed) | source: 25 |
| photovisual | 4,1 | source: 2 |
| photographic | 4,1 | source: 2 |
spectral information:
| spectral class | B9 | source: 96 | |
| Morgan-Keenan | B9.5Vne | source: 25 | |
| B-magnitude | 3,82 ±0,05 | B-V-magnitude | -0,05 |
| U-magnitude | 3,69 ±0,05 | U-B-magnitude | -0,13 |
double/multiple star system information:
| separation between brightest and second brightest component | 26,6 arcsec |
| magnitude difference between brightest and second brightest component | 1,83 |
| position angle | 144 ° |
| component | magnitude | spectral class | catalogue(s)/name(s) |
| A | 3,87 | B9 | k1Lupi, HR 5646, HD 134481, SAO 225525 |
| B | 5,69 | A0 | k2Lupi, HR 5647, HD 134482, SAO 225526 |
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: 15h 8min 26,767sec | DEC: -48° 32' 57,12'' | ±0,013 arcsec |
| position (J2000) | RA: 15h 11min 56,062sec | DEC: -48° 44' 16,14'' | |
| proper motion J1950 (FK4) | RA: -0,0097 arcsec/a | DEC: -0,049 arcsec/a | ±0,003 arcsec/a in RA ±0,003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0,0098 arcsec/a | DEC: -0,047 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 4,1 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from the "Henry Draper Catalogue". |
spectral information:
| spectral class | B9 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | FK4, catalogue number: 1398 |
| Durchmusterung | CD-48 9704 |
| Boss General Catalogue | 20409 |
| Henry Draper Catalogue | 134481 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 15h 11,9min | DEC: -48° 44' |
| proper motion (J2000) | RA: -0,095 arcsec/a | DEC: -0,049 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 |
| - | 1826 | 15 | 144° | 27,2'' | 3,87 | 5,7 | B9.5V+A5V | DUN 177 |
| 1982 | - | 26,6'' |
discoverer information:
| discoverer code | discoverer | reference |
| DUN 177 | Dunlop, J. | - |
notes:
| note | Kappa (1) Lup. B is CD-48@9705, Kappa (2) Lup. Proper motion of B -097 -042. |