V0567 Cassiopeiae
catalogues and names
| catalogues and names | V0567 Cas, HR 9110, HD 225289, SAO 10962, BD +60 2667 |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 0h 5min 6.2sec | DEC: +61° 18' 51'' | ||
| position (B1900) | RA: 23h 59min 55.9sec | DEC: +60° 45' 26'' | ||
| proper motion (J2000) | RA: 0.015 arcsec/a | DEC: 0.005 arcsec/a | ||
| radial velocity | 14 km/s note: variable radial velocity |
|||
| rotational velocity | 50 km/s (uncertain) (variable) | |||
| galactic coordinates | longitude: 117.4° | latitude: -1.06° | ||
magnitude
| visual magnitude | 5.8 (V on UBV Johnson system) |
spectral / color information
| spectral class | B8IVpHgMn |
| B-V-magnitude | -0.09 |
| U-B-magnitude | -0.32 |
variability information
| variable star identification | V567 Cas |
| note (category: variability): | Amp. 0.02:V, 6.4322d. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 0h 5min 6.103sec | DEC: +61° 18' 50.7'' | ±0.35 arcsec | source: 17 |
| proper motion (J2000) | RA: 0.0015 arcsec/a | DEC: 0.009 arcsec/a | source: 25 | |
| radial velocity | 14 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 117.4° | latitude: -1.06° | ||
magnitude:
| visual | 5.7 (observed) | source: 31 |
| photovisual | 5.9 | source: 2 |
| photographic | 5.8 | source: 16 |
spectral information:
| spectral class | B9 | source: 96 | |
| Morgan-Keenan | B8IVpHgMn | source: 25 | |
| B-magnitude | 5.71 ±0.05 | B-V-magnitude | -0.09 |
| U-magnitude | 5.39 ±0.05 | U-B-magnitude | -0.32 |
variability information:
| variability type | 160 |
| var. amplitude | 0.1 |
| var. period | 6.43 |
| var. epoch | 2440482 17. September 1969, 12:00:00 UT |
| next max light | 2452223.18 9. November 2001, 16:19:12 UT |
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 | |
| 25 | Bright Star Catalogue, 5th edition |
| Hoffleit, D. and Warren, W.H. Jr., The Bright Star Catalogue, 5th Revised Edition, Version 2, 1994 | |
| 30 | GCVS, 4th edition |
| Kholopov, P.N., et al., General Catalogue of Variable Stars, fourth edition, Moscow: Nauka Publishing House, 1985-88 | |
| 31 | CRM' (non-GCVS variable data) |
| Warren, W.H. Jr., Northern Hemisphere Catalog of Red Magnitudes, 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 2min 30.277sec | DEC: +61° 2' 8.64'' | ±0.031 arcsec |
| position (J2000) | RA: 0h 5min 6.162sec | DEC: +61° 18' 50.7'' | |
| proper motion B1950 (FK4) | RA: 0.0019 arcsec/a | DEC: 0.011 arcsec/a | ±0.005 arcsec/a in RA ±0.004 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: 0.002 arcsec/a | DEC: 0.005 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 5.9 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from Harvard or San Luis photometry. |
spectral information:
| spectral class | B9 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 52 |
| Durchmusterung | BD+60 2667 |
| Boss General Catalogue | 52 |
| Henry Draper Catalogue | 225289 |
data from Combined General Catalogue of Variable Stars (Vol. I-III) (Kholopov+ 1998)
position:
| position (equinox 1950.0) | RA: 0h 2min 30.3sec | DEC: +61° 2' 9'' |
variability informations:
| variability type | ACV | rotating variable star |
| magnitute at max. brightness | 5.71 | |
| magnitute at min. brightness | 5.81 | |
| photometric system | visual, photovisual or Johnson's V | |
| epoch for maximum light [JD] | 2440482.444 17. September 1969, 22:39:22 UT |
|
| period [d] | 6.4322 | |
| next maximum light [JD] | 2452221.209 7. November 2001, 17:00:58 UT |
|
| rising time | 50 % of period |
spectral information
| spectral class | B9p(Hg-Mn) |
references
| to a study | Vol. I GCVS (see Kholopov et al. 1985-1988) |
| to a chart/photograph | no chart is avaible, but the star is contained in the 'Bonner Durchmusterung' |
miscanellous
| ID in the GCVS catalogue | 18/567 |
| constellation | Cassiopeia |
| notes on existence | The star is equivalent to '0180568 V0568'. |
variability type description
| variability type | description |
| ACV | Alpha2 Canum Venaticorum variables. These are main-sequence stars with spectral types B8p-A7p and displaying strong magnetic fields. Spectra show abnormally strong lines of Si, Sr, Cr, and rare earths whose intensities vary with rotation. They exhibit magnetic field and brightness changes (periods of 0.5-160 days or more). The amplitudes of the brightness changes are usually withine 0.01-0.1 mag in V. ACVO Rapidly oscillating Alpha2 CVn variables. These are nonradially pulsating, rotating magnetic variables of Ap spectral type (DO Eri). Pulsation periods are in the range of 6-12 mmag (0.004-0.01 days), while amplitudes of light variation caused by the pulsation are about 0.01 mag in V. The pulsational variations are superposed on those caused by rotation. |