Fum al Samakah
catalogues and names | Fum al Samakah, b Psc, NSV 14410, 4 Psc, HR 8773, HD 217891, SAO 127934, FK5: 1602 |
constellation | Pisces |
data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)
note (category: star names): | Fum al Samakah. |
position, motion, parallax:
position (J2000) | RA: 23h 3min 52,6sec | DEC: +3° 49' 12'' |
position (J1900) | RA: 22h 58min 47,2sec | DEC: +3° 16' 54'' |
proper motion (J2000) | RA: 0,013 arcsec/a | DEC: -0,011 arcsec/a |
radial velocity | 0 km/s | |
rotational velocity | 128 km/s (uncertain) (variable) |
magnitude
visual magnitude | 4,53 (V on UBV Johnson system) |
spectral / color information
spectral class | B6Ve |
B-V-magnitude | -0,12 |
U-B-magnitude | -0,49 |
R-I-magnitude | -0,13 |
note (category: spectra): | Width of H alpha varies slightly. Rotationally unstable shell star. |
variability information
variable star identification | 14410 |
data from SKY2000 - Master Star Catalog (Myers+ 1997)
position, motion, parallax:
position (J2000) | RA: 23h 3min 52,617sec | DEC: +3° 49' 12,14'' | ±0,06 arcsec | source: 15 |
proper motion (J2000) | RA: 0,0009 arcsec/a | DEC: -0,011 arcsec/a | source: 25 | |
radial velocity | 0 km/s | source: 25 | ||
galactic coord. (B1950) | longitude: 78,81° | latitude: -49,61° | ||
GCI unit vector (J2000) | X: 0,96801 | Y: -0,241904 | Z: 0,066623 |
magnitude:
visual | 4,53 (observed) | source: 25 |
photovisual | 4,6 | source: 2 |
spectral information:
spectral class | B5 | source: 96 | |
Morgan-Keenan | B6Ve | source: 25 | |
B-magnitude | 4,41 ±0,05 | B-V-magnitude | -0,12 |
U-magnitude | 3,92 ±0,05 | U-B-magnitude | -0,49 |
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 1min 19,867sec | DEC: +3° 33' 1,75'' | ±0,005 arcsec |
position (J2000) | RA: 23h 3min 52,612sec | DEC: +3° 49' 12,23'' | |
proper motion J1950 (FK4) | RA: 0,0007 arcsec/a | DEC: -0,004 arcsec/a | ±0,001 arcsec/a in RA ±0,001 arcsec/a in DEC |
proper motion J2000 (FK5) | RA: 0,0008 arcsec/a | DEC: -0,009 arcsec/a | |
source of proper motion data | Determined by source catalog |
magnitude:
visual | 4,6 (accuracy: 2 decimals) |
source of visual magnitude data | Taken from the "Henry Draper Catalogue". |
spectral information:
spectral class | B5p |
source of spectral data | Taken from the Henry Draper Catalogue or no spectrum in source catalog. |
catalogues
source catalogue | FK4, catalogue number: 1602 |
Durchmusterung | BD+03 4818 |
Boss General Catalogue | 32134 |
Henry Draper Catalogue | 217891 |
data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)
position:
position (J1950) | RA: 23h 1min 19,9sec | DEC: +3° 33' 2'' |
variability informations:
magnitute at max. brightness | 4,51 |
magnitute at min. brightness | 4,55 |
photometric system | visual, photovisual or Johnson's V |
spectral information
spectral class | BE |
references
to a study | 712027D (designation: HR 8773) |