d Pavonis
catalogues and names | d Pav, NSV 12790, HR 7665, HD 190248, SAO 254733, FK5: 754 |
constellation | Pavo |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
position (J2000) | RA: 20h 8min 43,6sec | DEC: -66° 10' 55'' |
position (J1900) | RA: 19h 58min 54,9sec | DEC: -66° 26' 12'' |
proper motion (J2000) | RA: 1,207 arcsec/a | DEC: -1,131 arcsec/a |
radial velocity | -22 km/s | |
trigonometric parallax | 0,17 arcsec |
magnitude
visual magnitude | 3,56 (V on UBV Johnson system) |
spectral / color information
spectral class | G6-8IV |
B-V-magnitude | 0,76 |
U-B-magnitude | 0,45 |
R-I-magnitude | 0,34 |
note (category: spectra): | Metal rich star with normal Doppler broadening. |
variability information
variable star identification | 12790 |
note (category: variability): | 3.52 - 3.65V. |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
position (J2000) | RA: 20h 8min 43,581sec | DEC: -66° 10' 55,45'' | ±0,06 arcsec | source: 15 |
proper motion (J2000) | RA: 0,1993 arcsec/a | DEC: -1,131 arcsec/a | source: 25 | |
radial velocity | -22 km/s | source: 25 | ||
trigonometric parallax | 0,17 | ±0,017 arcsec | source: 25 | |
galactic coord. (B1950) | longitude: 329,79° | latitude: -32,4° | ||
GCI unit vector (J2000) | X: 0,215082 | Y: -0,341789 | Z: -0,914833 |
magnitude:
visual | 3,56 (observed) | source: 25 |
photovisual | 3,6 | source: 2 |
photographic | 4,4 | source: 2 |
spectral information:
spectral class | G5 | source: 96 | |
Morgan-Keenan | G6-8IV | source: 25 | |
B-magnitude | 4,32 ±0,05 | B-V-magnitude | 0,76 |
U-magnitude | 4,77 ±0,05 | U-B-magnitude | 0,45 |
variability information:
variability type | 9 |
var. amplitude | 0,13 |
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 3min 50,451sec | DEC: -66° 18' 43,41'' | ±0,011 arcsec |
position (J2000) | RA: 20h 8min 43,492sec | DEC: -66° 10' 55,28'' | |
proper motion J1950 (FK4) | RA: 0,1988 arcsec/a | DEC: -1,141 arcsec/a | ±0,003 arcsec/a in RA ±0,002 arcsec/a in DEC |
proper motion J2000 (FK5) | RA: 0,1984 arcsec/a | DEC: -1,129 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 | G5 |
source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
source catalogue | FK4, catalogue number: 754 |
Durchmusterung | CP-66 3474 |
Boss General Catalogue | 27886 |
Henry Draper Catalogue | 190248 |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
position (J1950) | RA: 20h 3min 50,5sec | DEC: -66° 18' 43'' |
variability informations:
magnitute at max. brightness | 3,52 |
magnitute at min. brightness | 3,65 |
photometric system | visual, photovisual or Johnson's V |
spectral information
spectral class | G8 |
references
to a study | 551537D (designation: DELTA PAV) |
miscanellous
There are notes in the published catalog (Kukarkin et al.(1982)). |