Taygeta
| catalogues and names | Taygeta, NSV 01264, 19 Tau, HR 1145, HD 23338, SAO 76140, WDS 03452+2428 |
| other names | Taygete |
| constellation | Taurus |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
| note (category: star names): | Taygeta; Taygete. |
position, motion, parallax:
| position (J2000) | RA: 3h 45min 12,5sec | DEC: +24° 28' 2'' |
| position (J1900) | RA: 3h 39min 15,2sec | DEC: +24° 9' 13'' |
| proper motion (J2000) | RA: 0,018 arcsec/a | DEC: -0,045 arcsec/a |
| radial velocity | 6 km/s note: spectroscopic binaries, single lined spectra |
|
| rotational velocity | 133 km/s (uncertain) (variable) | |
| note (category: radial and/or rotational velocities): | vsini 135k/s. |
magnitude
| visual magnitude | 4,3 (V on UBV Johnson system) |
spectral / color information
| spectral class | B6IV |
| B-V-magnitude | -0,11 |
| U-B-magnitude | -0,46 |
| R-I-magnitude | -0,09 |
variability information
| variable star identification | 1264 |
double/multiple star system information
| number of components of multiple star system | 3 |
| separation | 0 arcsec |
| mag difference (of double or brightest multiple) | 1,5 |
| component ID | A |
| note | Worley (1978) update of the IDS |
| note (category: double and multiple data): | Primary is SB, 4.6, 6.1v, sep. 0.012". Visual pair 4.4, 8.1v, sep. 69". |
| note (category: spectroscopic binaries): | 1313d, K 8.0k/s, V0 +5.9k/s, asini 144.0. Unresolved by speckle interferometry. |
miscellaneous information
| note (category: group membership): | Pleiades cluster; Mel 22 #563; embedded in reflection nebulosity. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 3h 45min 12,469sec | DEC: +24° 28' 1,36'' | ±0,43 arcsec | source: 16 |
| proper motion (J2000) | RA: 0,0007 arcsec/a | DEC: -0,058 arcsec/a | source: 25 | |
| radial velocity | 6 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 165,99° | latitude: -23,53° | ||
| GCI unit vector (J2000) | X: 0,504993 | Y: 0,757262 | Z: 0,41417 | |
magnitude:
| visual | 4,3 (observed) | source: 25 |
| photovisual | 4,4 | source: 2 |
| photographic | 4,2 | source: 16 |
spectral information:
| spectral class | B5 | source: 96 | |
| Morgan-Keenan | B6IV | source: 25 | |
| B-magnitude | 4,19 ±0,05 | B-V-magnitude | -0,11 |
| U-magnitude | 3,73 ±0,05 | U-B-magnitude | -0,46 |
double/multiple star system information:
| separation between brightest and second brightest component | 68,8 arcsec |
| magnitude difference between brightest and second brightest component | 3,8 |
| position angle | 329 ° |
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: 3h 42min 13,572sec | DEC: +24° 18' 42,91'' | ±0,016 arcsec |
| position (J2000) | RA: 3h 45min 12,476sec | DEC: +24° 28' 2,05'' | |
| proper motion J1950 (FK4) | RA: 0,0014 arcsec/a | DEC: -0,042 arcsec/a | ±0,003 arcsec/a in RA ±0,002 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0,0013 arcsec/a | DEC: -0,045 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 4,4 (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. |
catalogues
| source catalogue | GC, catalogue number: 4486 |
| Durchmusterung | BD+24 547 |
| Boss General Catalogue | 4486 |
| Henry Draper Catalogue | 23338 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 3h 45,2min | DEC: +24° 28' |
| proper motion (J2000) | RA: 0,019 arcsec/a | DEC: -0,047 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 |
| - | 1880 | 9 | 330° | 66,4'' | 4,3 | 8,1 | B6IV | HJ 3251 |
| 1925 | 329° | 68,8'' |
discoverer information:
| discoverer code | discoverer | reference |
| HJ 3251 | Herschel, J. | - |
notes:
| note | 19 Tau. A is a spectroscopic and occultation binary. Proper motion of B +026 -012. |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
| position (J1950) | RA: 3h 42min 13,6sec | DEC: +24° 18' 43'' |
variability informations:
| variability type | - |
| magnitute at max. brightness | 4,29 |
| magnitute at min. brightness | |
| photometric system | visual, photovisual or Johnson's V |
spectral information
| spectral class | B6 |
references
| to a study | 252684D (designation: *) |
miscanellous
| There are notes in the published catalog (Kukarkin et al.(1982)). |