a Mensae

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 Men, HR 2261, HD 43834, SAO 256274, FK5: 239
constellation Mensa

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

position, motion, parallax:

position (J2000) RA: 6h 10min 14,4sec DEC: -74 45' 11''
position (J1900) RA: 6h 13min 13,2sec DEC: -74 43' 7''
proper motion (J2000) RA: 0,118 arcsec/a DEC: -0,213 arcsec/a
radial velocity 35 km/s
trigonometric parallax 0,115 arcsec


visual magnitude 5,09
(V on UBV Johnson system)

spectral / color information

spectral class G6V
B-V-magnitude 0,72
U-B-magnitude 0,33
R-I-magnitude 0,32

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

position, motion, parallax:

position (J2000) RA: 6h 10min 14,436sec DEC: -74 45' 11,05'' 0,06 arcsec source: 15
proper motion (J2000) RA: 0,0298 arcsec/a DEC: -0,213 arcsec/a source: 25
radial velocity 35 km/s source: 25
trigonometric parallax 0,115 0,012 arcsec source: 25
galactic coord. (B1950) longitude: 285,76 latitude: -28,8
GCI unit vector (J2000) X: -0,011747 Y: 0,262717 Z: -0,964801


visual 5,09 (observed) source: 25
photovisual 5,1 source: 2
photographic 6,1 source: 2

spectral information:

spectral class K0 source: 96
Morgan-Keenan G6V source: 25
B-magnitude 5,81 0,05 B-V-magnitude 0,72
U-magnitude 6,14 0,05 U-B-magnitude 0,33


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 11min 43,975sec DEC: -74 44' 12,46'' 0,014 arcsec
position (J2000) RA: 6h 10min 14,385sec DEC: -74 45' 10,9''
proper motion J1950 (FK4) RA: 0,031 arcsec/a DEC: -0,211 arcsec/a 0,004 arcsec/a in RA
0,003 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0292 arcsec/a DEC: -0,211 arcsec/a
source of proper motion data Determined by source catalog


visual 5,1 (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.


source catalogue FK4, catalogue number: 239
Durchmusterung CP-74 374
Boss General Catalogue 7962
Henry Draper Catalogue 43834