b Pavonis
| catalogues and names | b Pav, HR 7913, HD 197051, SAO 254862, FK5: 775 |
| constellation | Pavo |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
| position (J2000) | RA: 20h 44min 57,5sec | DEC: -66° 12' 11'' |
| position (J1900) | RA: 20h 35min 57sec | DEC: -66° 33' 45'' |
| proper motion (J2000) | RA: -0,046 arcsec/a | DEC: 0,012 arcsec/a |
| radial velocity | 10 km/s | |
| rotational velocity | 86 km/s (uncertain) (variable) | |
| trigonometric parallax | 0,035 arcsec | |
magnitude
| visual magnitude | 3,42 (V on UBV Johnson system) |
spectral / color information
| spectral class | A7III |
| B-V-magnitude | 0,16 |
| U-B-magnitude | 0,12 |
miscellaneous information
| note (category: group membership): | Sirius group? |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
| position (J2000) | RA: 20h 44min 57,47sec | DEC: -66° 12' 11,44'' | ±0,06 arcsec | source: 15 |
| proper motion (J2000) | RA: -0,0076 arcsec/a | DEC: 0,011 arcsec/a | source: 25 | |
| radial velocity | 10 km/s | source: 25 | ||
| trigonometric parallax | 0,035 | ±0,003 arcsec | source: 25 | |
| galactic coord. (B1950) | longitude: 328,96° | latitude: -36,01° | ||
| GCI unit vector (J2000) | X: 0,265987 | Y: -0,303412 | Z: -0,914982 | |
magnitude:
| visual | 3,42 (observed) | source: 25 |
| photovisual | 3,6 | source: 2 |
| photographic | 3,7 | source: 2 |
spectral information:
| spectral class | A5 | source: 96 | |
| Morgan-Keenan | A7III | source: 25 | |
| B-magnitude | 3,58 ±0,05 | B-V-magnitude | 0,16 |
| U-magnitude | 3,7 ±0,05 | U-B-magnitude | 0,12 |
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 | |
| 15 | FK5, FK5 Extension and FK5 Supplement |
| Fricke, W., H. Schwan and T. Lederle, "Fifth Fundamental Catalogue (FK5), Part I. The Basic Fundamental Stars," Veroff. Astronomisches Recheninstitut, No. 32, Heidelberg, Germany, 1988, and Fricke, W., H. Schwan, and T.E. Corbin, "Fifth Fundamental Catalogue (FK5), Part II. The FK5 Extension," Veröff. Astronomisches Recheninstitut, No. 33, Heidelberg, Germany, 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 (J1950) | RA: 20h 40min 28,662sec | DEC: -66° 23' 5,42'' | ±0,01 arcsec |
| position (J2000) | RA: 20h 44min 57,468sec | DEC: -66° 12' 11,1'' | |
| proper motion J1950 (FK4) | RA: -0,0061 arcsec/a | DEC: 0,017 arcsec/a | ±0,002 arcsec/a in RA ±0,002 arcsec/a in DEC |
| proper motion J2000 (FK5) | RA: -0,0075 arcsec/a | DEC: 0,015 arcsec/a | |
| source of proper motion data | Determined by source catalog | ||
magnitude:
| visual | 3,6 (accuracy: 2 decimals) |
| source of visual magnitude data | Taken from the "Henry Draper Catalogue". |
spectral information:
| spectral class | A5 |
| source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
| source catalogue | FK4, catalogue number: 775 |
| Durchmusterung | CP-66 3501 |
| Boss General Catalogue | 28862 |
| Henry Draper Catalogue | 197051 |