a Pictoris


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 a Pic, HR 2550, HD 50241, SAO 249647, FK5: 262
constellation Pictor

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


position, motion, parallax:

position (J2000) RA: 6h 48min 11,4sec DEC: -61 56' 29''
position (J1900) RA: 6h 47min 9,8sec DEC: -61 50' 2''
proper motion (J2000) RA: -0,069 arcsec/a DEC: 0,269 arcsec/a
radial velocity 21 km/s
rotational velocity 205 km/s (uncertain) (variable)
trigonometric parallax 0,052 arcsec

magnitude

visual magnitude 3,27
(V on UBV Johnson system)

spectral / color information

spectral class A7IV
B-V-magnitude 0,21
U-B-magnitude 0,13
R-I-magnitude 0,13

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

position, motion, parallax:

position (J2000) RA: 6h 48min 11,437sec DEC: -61 56' 28,95'' 0,06 arcsec source: 15
proper motion (J2000) RA: -0,0098 arcsec/a DEC: 0,269 arcsec/a source: 25
radial velocity 21 km/s source: 25
trigonometric parallax 0,052 0,005 arcsec source: 25
galactic coord. (B1950) longitude: 271,92 latitude: -24,1
GCI unit vector (J2000) X: -0,098179 Y: 0,460014 Z: -0,882467

magnitude:

visual 3,27 (observed) source: 25
photovisual 3,3 source: 2
photographic 3,4 source: 2

spectral information:

spectral class A5 source: 96
Morgan-Keenan A7IV source: 25
B-magnitude 3,48 0,05 B-V-magnitude 0,21
U-magnitude 3,61 0,05 U-B-magnitude 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: 6h 47min 40,725sec DEC: -61 53' 14,36'' 0,01 arcsec
position (J2000) RA: 6h 48min 11,44sec DEC: -61 56' 29,02''
proper motion J1950 (FK4) RA: -0,0101 arcsec/a DEC: 0,266 arcsec/a 0,002 arcsec/a in RA
0,002 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0097 arcsec/a DEC: 0,268 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 3,3 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class A5
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 262
Durchmusterung CP-61 720
Boss General Catalogue 8941
Henry Draper Catalogue 50241