g Tucanae


The object was found in the following catalogues:
  1. The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version)

  2. SKY2000 - Master Star Catalog

  3. Smithsonian Astrophysical Observatory Star Catalog


catalogues and names g Tuc, HR 8848, HD 219571, SAO 247814, FK5: 877
constellation Tucana

data from The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version) (Hoffleit+, 1991)


position, motion, parallax:

position (J2000) RA: 23h 17min 25,8sec DEC: -58 14' 9''
position (J1900) RA: 23h 11min 35,7sec DEC: -58 47' 2''
proper motion (J2000) RA: -0,029 arcsec/a DEC: 0,079 arcsec/a
radial velocity 18 km/s
rotational velocity 94 km/s (uncertain) (variable)
trigonometric parallax 0,043 arcsec

magnitude

visual magnitude 3,99
(V on UBV Johnson system)

spectral / color information

spectral class F1III
B-V-magnitude 0,4
U-B-magnitude -0,02
R-I-magnitude 0,23

data from SKY2000 - Master Star Catalog (Myers+ 1997)

position, motion, parallax:

position (J2000) RA: 23h 17min 25,767sec DEC: -58 14' 8,62'' 0,06 arcsec source: 15
proper motion (J2000) RA: -0,0037 arcsec/a DEC: 0,079 arcsec/a source: 25
radial velocity 18 km/s source: 25
trigonometric parallax 0,043 0,004 arcsec source: 25
galactic coord. (B1950) longitude: 324,3 latitude: -54,82
GCI unit vector (J2000) X: 0,51737 Y: -0,097222 Z: -0,850221

magnitude:

visual 3,99 (observed) source: 25
photovisual 4,1 source: 2
photographic 4,4 source: 2

spectral information:

spectral class F2 source: 96
Morgan-Keenan F1III source: 25
B-magnitude 4,39 0,05 B-V-magnitude 0,4
U-magnitude 4,37 0,05 U-B-magnitude -0,02

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 31,468sec DEC: -58 30' 36,45'' 0,01 arcsec
position (J2000) RA: 23h 17min 25,766sec DEC: -58 14' 8,11''
proper motion J1950 (FK4) RA: -0,0032 arcsec/a DEC: 0,089 arcsec/a 0,002 arcsec/a in RA
0,002 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0037 arcsec/a DEC: 0,084 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 4,1 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class F2
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 877
Durchmusterung CP-58 8062
Boss General Catalogue 32413
Henry Draper Catalogue 219571