k Leporis
| catalogues and names | k Lep, NSV 16265, 4 Lep, HR 1705, HD 33949, SAO 150239, WDS 05132-1256 |
| constellation | Lepus |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 5h 13min 13,9sec | DEC: -12° 56' 29'' |
| position (J1900) | RA: 5h 8min 36,8sec | DEC: -13° 3' 35'' |
| proper motion (J2000) | RA: -0,014 arcsec/a | DEC: -0,009 arcsec/a |
| radial velocity | 18 km/s note: variable radial velocity |
|
| rotational velocity | 124 km/s (uncertain) (variable) | |
| trigonometric parallax | 0,034 arcsec | |
magnitude
| visual magnitude | 4,36 (V on UBV Johnson system) |
spectral / color information
| spectral class | B9V |
| B-V-magnitude | -0,1 |
| U-B-magnitude | -0,37 |
| R-I-magnitude | -0,09 |
double/multiple star system information
| separation | 2,6 arcsec |
| mag difference (of double or brightest multiple) | 2,7 |
| note (category: double and multiple data): | CPM. Combined mag., colors. Companion B9V, optical? |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 5h 13min 13,865sec | DEC: -12° 56' 28,44'' | ±0,19 arcsec | source: 16 |
| proper motion (J2000) | RA: -0,0011 arcsec/a | DEC: 0,007 arcsec/a | source: 25 | |
| radial velocity | 18 km/s | source: 25 | ||
| trigonometric parallax | 0,034 | ±0,003 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 213,88° | latitude: -27,55° | ||
| GCI unit vector (J2000) | X: 0,197507 | Y: 0,954378 | Z: -0,223952 | |
magnitude:
| visual | 4,36 (observed) | source: 25 |
| photovisual | 3,9 | source: 16 |
| photographic | 4,4 | source: 2 |
spectral information:
| spectral class | B8 | source: 96 | |
| Morgan-Keenan | B9V | source: 25 | |
| B-magnitude | 4,26 ±0,05 | B-V-magnitude | -0,1 |
| U-magnitude | 3,89 ±0,05 | U-B-magnitude | -0,37 |
double/multiple star system information:
| separation between brightest and second brightest component | 2,3 arcsec |
| magnitude difference between brightest and second brightest component | 2,9 |
| position angle | 357 ° |
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: 5h 10min 55,232sec | DEC: -12° 59' 57,16'' | ±0,032 arcsec |
| position (J2000) | RA: 5h 13min 13,876sec | DEC: -12° 56' 29,47'' | |
| proper motion J1950 (FK4) | RA: -0,0014 arcsec/a | DEC: -0,01 arcsec/a | ±0,005 arcsec/a in RA ±0,004 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0,0009 arcsec/a | DEC: -0,009 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 4,5 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | B8 |
| 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: 6387 |
| Durchmusterung | BD-13 1092 |
| Boss General Catalogue | 6387 |
| Henry Draper Catalogue | 33949 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 5h 13,2min | DEC: -12° 56' |
| proper motion (J2000) | RA: -0,011 arcsec/a | DEC: 0,001 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 |
| - | 1832 | 33 | 359° | 3'' | 4,5 | 7,4 | B9V | STF 661 |
| 1959 | 357° | 2,3'' |
discoverer information:
| discoverer code | discoverer | reference |
| STF 661 | Struve, F.G.W. | - |