V0746 Cassiopeiae
catalogues and names
| catalogues and names | V0746 Cas, HR 91, HD 1976, SAO 21366, BD +51 62, WDS 00243+5201 |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 0h 24min 15.6sec | DEC: +52° 1' 12'' | ||
| position (B1900) | RA: 0h 18min 52.2sec | DEC: +51° 27' 57'' | ||
| proper motion (J2000) | RA: 0.013 arcsec/a | DEC: -0.004 arcsec/a | ||
| radial velocity | -7 km/s note: spectroscopic binaries note: orbital data avaible |
|||
| rotational velocity | 230 km/s (uncertain) (variable) | |||
| dynamical parallax | 0.004 arcsec | |||
| galactic coordinates | longitude: 118.68° | latitude: -10.63° | ||
magnitude
| visual magnitude | 5.57 (V on UBV Johnson system) |
spectral / color information
| spectral class | B5IV |
| B-V-magnitude | -0.12 |
| U-B-magnitude | -0.6 |
variability information
| variable star identification | 155 |
| note (category: variability): | ADS 328A, E?, 5.56 - 5.62V. |
double/multiple star system information
| separation | 0.2 arcsec |
| mag difference (of double or brightest multiple) | 2.5 |
| note (category: double and multiple data): | ADS 328B, 8.0 at 0.2". However, ADS 328 appeared single in 1953. |
| note (category: spectroscopic binaries): | ADS 328A, 27.8d, K 30k/s, V0 -18k/s, asini 11.2. |
miscellaneous information
| note (category: group membership): | Cas-Tau OB1. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 0h 24min 15.665sec | DEC: +52° 1' 11.76'' | ±0.35 arcsec | source: 17 |
| proper motion (J2000) | RA: 0.0018 arcsec/a | DEC: -0.003 arcsec/a | source: 25 | |
| radial velocity | -7 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 118.69° | latitude: -10.63° | ||
magnitude:
| visual | 5.57 (observed) | source: 25 |
| photovisual | 5.4 | source: 2 |
| photographic | 5.2 | source: 16 |
spectral information:
| spectral class | B3 | source: 96 | |
| Morgan-Keenan | B5IV | source: 25 | |
| B-magnitude | 5.45 ±0.05 | B-V-magnitude | -0.12 |
| U-magnitude | 4.85 ±0.05 | U-B-magnitude | -0.6 |
double/multiple star system information:
| separation between brightest and second brightest component | 0.1 arcsec |
| magnitude difference between brightest and second brightest component | 2.5 |
| position angle | 59 ° |
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 | |
| 17 | ACRS |
| Corbin, T.E., and S.E. Urban, Astrographic Catalog Reference Stars, United States Naval Observatory, 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 (B1950) | RA: 0h 21min 33.313sec | DEC: +51° 44' 34.92'' | ±0.025 arcsec |
| position (J2000) | RA: 0h 24min 15.645sec | DEC: +52° 1' 11.72'' | |
| proper motion B1950 (FK4) | RA: 0.0013 arcsec/a | DEC: 0.001 arcsec/a | ±0.005 arcsec/a in RA ±0.004 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0015 arcsec/a | DEC: -0.004 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5.4 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | B3 |
| 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: 476 |
| Durchmusterung | BD+51 62 |
| Boss General Catalogue | 476 |
| Henry Draper Catalogue | 1976 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 0h 24.3min | DEC: +52° 1' |
| proper motion (J2000) | RA: 0.017 arcsec/a | DEC: -0.003 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 |
| - | 1902 | 23 | 217° | 0.2'' | 5.5 | 8 | B5IV | HU 506 |
| 1993 | 59° | 0.1'' |
discoverer information:
| discoverer code | discoverer | reference |
| HU 506 | Hussey, W.J. | - |
notes:
| note | Single 1934, 1953. A premature orbit has been computed. A is a spectroscopic binary, P = 28d:. |