V0773 Cassiopeiae
catalogues and names
| catalogues and names | V0773 Cas, HR 499, HD 10543, SAO 22566, BD +56 330, WDS 01443+5732 |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 1h 44min 17.9sec | DEC: +57° 32' 11'' | ||
| position (B1900) | RA: 1h 37min 41.3sec | DEC: +57° 2' 2'' | ||
| proper motion (J2000) | RA: 0.039 arcsec/a | DEC: -0.04 arcsec/a | ||
| radial velocity | 5 km/s | |||
| rotational velocity | 70 km/s (uncertain) (variable) | |||
| trigonometric parallax | -0.003 arcsec | |||
| galactic coordinates | longitude: 130° | latitude: -4.61° | ||
| note (category: dynamical parallaxes): | 0.016". |
magnitude
| visual magnitude | 6.21 (V on UBV Johnson system) |
spectral / color information
| spectral class | A3V |
| B-V-magnitude | 0.1 |
| U-B-magnitude | 0.03 |
double/multiple star system information
| separation | 1.2 arcsec |
| mag difference (of double or brightest multiple) | 1.4 |
| note (category: double and multiple data): | 6.4 A2, 7.8 F0, 573.52y, a = 1.07". |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 1h 44min 17.922sec | DEC: +57° 32' 11.9'' | ±0.43 arcsec | source: 16 |
| proper motion (J2000) | RA: 0.0051 arcsec/a | DEC: -0.02 arcsec/a | source: 25 | |
| radial velocity | 5 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 130.01° | latitude: -4.61° | ||
magnitude:
| visual | 6.19 (observed) | source: 25 |
| photovisual | 6.1 | source: 2 |
| photographic | 6.2 | source: 16 |
spectral information:
| spectral class | A2 | source: 96 | |
| Morgan-Keenan | A3V | source: 25 | |
| B-magnitude | 6.31 ±0.05 | B-V-magnitude | 0.12 |
| U-magnitude | 6.36 ±0.05 | U-B-magnitude | 0.05 |
double/multiple star system information:
| separation between brightest and second brightest component | 0.9 arcsec |
| magnitude difference between brightest and second brightest component | 1.4 |
| position angle | 359 ° |
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 (B1950) | RA: 1h 40min 58.641sec | DEC: +57° 17' 9.55'' | ±0.026 arcsec |
| position (J2000) | RA: 1h 44min 17.893sec | DEC: +57° 32' 10.68'' | |
| proper motion B1950 (FK4) | RA: 0.0049 arcsec/a | DEC: -0.035 arcsec/a | ±0.004 arcsec/a in RA ±0.004 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.0049 arcsec/a | DEC: -0.04 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 6.1 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | A2 |
| 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: 2109 |
| Durchmusterung | BD+56 330 |
| Boss General Catalogue | 2109 |
| Henry Draper Catalogue | 10543 |
data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)
position and proper motion:
| position (J2000) | RA: 1h 44.3min | DEC: +57° 32' |
| proper motion (J2000) | RA: 0.04 arcsec/a | DEC: -0.031 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 | 1880 | 63 | 68° | 1.1'' | 6.4 | 7.8 | A3V | BU 870 |
| 1992 | 359° | 0.9'' | ||||||
| AC | 1916 | 1 | 44° | 13'' | 6.1 | - | A3V | GUI |
discoverer information:
| discoverer code | discoverer | reference |
| BU 870 | Burnham, S.W. | - |
| GUI | Guillaume, J. |
notes:
| note | A premature orbit has been computed. |
data from 4th Catalog of Orbits of Visual Binaries (Worley+, 1983)
position:
| position (B1900) | RA: 1h 37.7min | DEC: +57° 2' |
magnitudes, spectral classes, orbital elements:
| author: | G.M. Popovic |
| date of observation: | 1967 |
| magnitude of component A: | 6.4 |
| magnitude of component B: | 6.4 |
| spectral class component B: | A3V |
| spectral class component B: | A3V |
| period [y]: | 573.52 |
| semi-major axis [arcsec]: | 1.07 |
| inclination [deg]: | 180 |
| node [deg]: | 0 |
| eccentricity: | 0 |
| time of periastron passage: | 1985.76 |
| dates of ephemeris: | 1972-1985 |
| grade: | indeterminate |
| reference: | Bull. Obs. Beograd 29, 31; 1972,3. |
| other name(s) | BU 870 |