g Pyxidis
catalogues and names | g Pyx, HR 3518, HD 75691, SAO 176559, FK5: 332 |
constellation | Pyxis |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
position (J2000) | RA: 8h 50min 31,9sec | DEC: -27° 42' 36'' |
position (J1900) | RA: 8h 46min 17,2sec | DEC: -27° 20' 20'' |
proper motion (J2000) | RA: -0,13 arcsec/a | DEC: 0,087 arcsec/a |
radial velocity | 25 km/s | |
trigonometric parallax | 0,033 arcsec |
magnitude
visual magnitude | 4,01 (V on UBV Johnson system) |
spectral / color information
spectral class | K3-III |
B-V-magnitude | 1,27 |
U-B-magnitude | 1,4 |
R-I-magnitude | 0,67 |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
position (J2000) | RA: 8h 50min 31,935sec | DEC: -27° 42' 35,59'' | ±0,06 arcsec | source: 15 |
proper motion (J2000) | RA: -0,0098 arcsec/a | DEC: 0,087 arcsec/a | source: 25 | |
radial velocity | 25 km/s | source: 25 | ||
trigonometric parallax | 0,033 | ±0,003 arcsec | source: 25 | |
galactic coord. (B1950) | longitude: 251,58° | latitude: 10,33° | ||
GCI unit vector (J2000) | X: -0,599623 | Y: 0,651331 | Z: -0,464995 |
magnitude:
visual | 4,01 (observed) | source: 25 |
photovisual | 4,2 | source: 2 |
spectral information:
spectral class | K2 | source: 96 | |
Morgan-Keenan | K2.5III | source: 25 | |
B-magnitude | 5,28 ±0,05 | B-V-magnitude | 1,27 |
U-magnitude | 6,68 ±0,05 | U-B-magnitude | 1,4 |
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: 8h 48min 24,519sec | DEC: -27° 31' 24,55'' | ±0,009 arcsec |
position (J2000) | RA: 8h 50min 31,942sec | DEC: -27° 42' 35,71'' | |
proper motion J1950 (FK4) | RA: -0,01 arcsec/a | DEC: 0,082 arcsec/a | ±0,002 arcsec/a in RA ±0,002 arcsec/a in DEC |
proper motion J2000 (FK5) | RA: -0,0097 arcsec/a | DEC: 0,086 arcsec/a | |
source of proper motion data | Determined by source catalog |
magnitude:
visual | 4,2 (accuracy: 2 decimals) |
source of visual magnitude data | Taken from the "Henry Draper Catalogue". |
spectral information:
spectral class | K2 |
source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
source catalogue | FK4, catalogue number: 332 |
Durchmusterung | CD-27 5986 |
Boss General Catalogue | 12216 |
Henry Draper Catalogue | 75691 |