V0472 Persei
catalogues and names
| catalogues and names | V0472 Per, HR 618, HD 12953, SAO 22959, BD +57 494 |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 2h 8min 40.5sec | DEC: +58° 25' 25'' | ||
| position (B1900) | RA: 2h 1min 41.3sec | DEC: +57° 56' 52'' | ||
| proper motion (J2000) | RA: -0.011 arcsec/a | DEC: 0.003 arcsec/a | ||
| radial velocity | -36 km/s note: variable radial velocity |
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| rotational velocity | 18 km/s (uncertain) (variable) | |||
| galactic coordinates | longitude: 132.92° | latitude: -2.94° | ||
magnitude
| visual magnitude | 5.67 (V on UBV Johnson system) |
spectral / color information
| spectral class | A1Ia |
| B-V-magnitude | 0.61 |
| U-B-magnitude | -0.02 |
| R-I-magnitude |
| note (category: spectra): | Shell star. |
variability information
| variable star identification | V472 Per |
| note (category: variability): | Amp. 0.065V. Sp. var., H alpha profile var. |
miscellaneous information
| note (category: group membership): | NGC 869; Per OB1. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 2h 8min 40.58sec | DEC: +58° 25' 25.18'' | ±0.35 arcsec | source: 17 |
| proper motion (J2000) | RA: 0 arcsec/a | DEC: 0.004 arcsec/a | source: 25 | |
| radial velocity | -36 km/s | source: 25 | ||
| galactic coord. (B1950) | longitude: 132.92° | latitude: -2.94° | ||
magnitude:
| visual | 5.67 (observed) | source: 25 |
| photovisual | 5.9 | source: 2 |
| photographic | 6 | source: 16 |
spectral information:
| spectral class | A2 | source: 96 | |
| Morgan-Keenan | A1Ia | source: 25 | |
| B-magnitude | 6.28 ±0.05 | B-V-magnitude | 0.61 |
| U-magnitude | 6.26 ±0.05 | U-B-magnitude | -0.02 |
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 | |
| 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: 2h 5min 9.869sec | DEC: +58° 11' 13.09'' | ±0.018 arcsec |
| position (J2000) | RA: 2h 8min 40.451sec | DEC: +58° 25' 25.42'' | |
| proper motion B1950 (FK4) | RA: -0.0013 arcsec/a | DEC: 0.008 arcsec/a | ±0.004 arcsec/a in RA ±0.003 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0.0014 arcsec/a | DEC: 0.003 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 | A2p |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | GC, catalogue number: 2549 |
| Durchmusterung | BD+57 494 |
| Boss General Catalogue | 2549 |
| Henry Draper Catalogue | 12953 |
data from Combined General Catalogue of Variable Stars (Vol. I-III) (Kholopov+ 1998)
position:
| position (equinox 1950.0) | RA: 2h 5min 9.9sec | DEC: +58° 11' 13'' |
variability informations:
| variability type | ACYG | pulsating variable star |
| magnitute at max. brightness | 5.64 | |
| magnitute at min. brightness | 5.74 | |
| photometric system | visual, photovisual or Johnson's V |
references
| to a study | F.Rufener, A.Maeder, G.Burki, AsAp Suppl 31,179,1978. |
| to a chart/photograph | no chart is avaible, but the star is contained in the 'Bonner Durchmusterung' |
miscanellous
| ID in the GCVS catalogue | 63/472 |
| constellation | Perseus |
| notes on existence | The star is equivalent to '67033'. |
variability type description
| variability type | description |
| ACYG | Variables of the Alpha Cygni type, which are nonradially pulsating supergiants of Bep-AepIa spectral types. The light changes with amplitudes of the order of 0.1 mag often seem irregular, being caused by the superposition of many oscillations with close periods. Cycles from several days to several weeks are observed. |