g Piscium
catalogues and names | g Psc, 6 Psc, HR 8852, HD 219615, SAO 128085, FK5: 878 |
constellation | Pisces |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
position, motion, parallax:
position (J2000) | RA: 23h 17min 9,9sec | DEC: +3° 16' 56'' |
position (J1900) | RA: 23h 11min 58,8sec | DEC: +2° 44' 9'' |
proper motion (J2000) | RA: 0,762 arcsec/a | DEC: 0,017 arcsec/a |
radial velocity | -14 km/s note: suspected variable radial velocity |
|
rotational velocity | 7 km/s (uncertain) (variable) | |
trigonometric parallax | 0,036 arcsec |
magnitude
visual magnitude | 3,69 (V on UBV Johnson system) |
spectral / color information
spectral class | G9-III:Fe-2 |
B-V-magnitude | 0,92 |
U-B-magnitude | 0,58 |
R-I-magnitude | 0,51 |
miscellaneous information
note (category: miscellaneous): | High space velocity? |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
position (J2000) | RA: 23h 17min 9,943sec | DEC: +3° 16' 56,18'' | ±0,06 arcsec | source: 15 |
proper motion (J2000) | RA: 0,0509 arcsec/a | DEC: 0,017 arcsec/a | source: 25 | |
radial velocity | -14 km/s | source: 25 | ||
trigonometric parallax | 0,036 | ±0,004 arcsec | source: 25 | |
galactic coord. (B1950) | longitude: 82,48° | latitude: -52,02° | ||
GCI unit vector (J2000) | X: 0,980973 | Y: -0,185509 | Z: 0,057255 |
magnitude:
visual | 3,69 (observed) | source: 25 |
photovisual | 3,9 | source: 2 |
spectral information:
spectral class | K0 | source: 96 | |
Morgan-Keenan | G9III:Fe-2 | source: 25 | |
B-magnitude | 4,61 ±0,05 | B-V-magnitude | 0,92 |
U-magnitude | 5,19 ±0,05 | U-B-magnitude | 0,58 |
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: 23h 14min 34,331sec | DEC: +3° 0' 31,65'' | ±0,003 arcsec |
position (J2000) | RA: 23h 17min 9,939sec | DEC: +3° 16' 56,19'' | |
proper motion J1950 (FK4) | RA: 0,0507 arcsec/a | DEC: 0,022 arcsec/a | ±0,001 arcsec/a in RA ±0,001 arcsec/a in DEC |
proper motion J2000 (FK5) | RA: 0,0509 arcsec/a | DEC: 0,017 arcsec/a | |
source of proper motion data | Determined by source catalog |
magnitude:
visual | 3,9 (accuracy: 2 decimals) |
source of visual magnitude data | Taken from the "Henry Draper Catalogue". |
spectral information:
spectral class | K0 |
source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
source catalogue | FK4, catalogue number: 878 |
Durchmusterung | BD+02 4648 |
Boss General Catalogue | 32415 |
Henry Draper Catalogue | 219615 |