b Crateris


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 b Crt, 11 Crt, HR 4343, HD 97277, SAO 179624, FK5: 421
constellation Crater

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


position, motion, parallax:

position (J2000) RA: 11h 11min 39,5sec DEC: -22 49' 33''
position (J1900) RA: 11h 6min 44,3sec DEC: -22 16' 47''
proper motion (J2000) RA: 0,003 arcsec/a DEC: -0,1 arcsec/a
radial velocity 6 km/s
note: spectroscopic binaries
rotational velocity 58 km/s (uncertain) (variable)
trigonometric parallax 0,051 arcsec

magnitude

visual magnitude 4,48
(V on UBV Johnson system)

spectral / color information

spectral class A2III
B-V-magnitude 0,03
U-B-magnitude 0,06
R-I-magnitude 0,02

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

position, motion, parallax:

position (J2000) RA: 11h 11min 39,492sec DEC: -22 49' 33,1'' 0,06 arcsec source: 15
proper motion (J2000) RA: 0,0002 arcsec/a DEC: -0,1 arcsec/a source: 25
radial velocity 6 km/s source: 25
trigonometric parallax 0,051 0,005 arcsec source: 25
galactic coord. (B1950) longitude: 274,79 latitude: 34,53
GCI unit vector (J2000) X: -0,90126 Y: 0,192974 Z: -0,387932

magnitude:

visual 4,48 (observed) source: 25
photovisual 4,5 source: 2
photographic 4,6 source: 2

spectral information:

spectral class A2 source: 96
Morgan-Keenan A2III source: 25
B-magnitude 4,51 0,05 B-V-magnitude 0,03
U-magnitude 4,57 0,05 U-B-magnitude 0,06

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: 11h 9min 11,73sec DEC: -22 33' 8,99'' 0,005 arcsec
position (J2000) RA: 11h 11min 39,493sec DEC: -22 49' 32,87''
proper motion J1950 (FK4) RA: 0 arcsec/a DEC: -0,102 arcsec/a 0,001 arcsec/a in RA
0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0002 arcsec/a DEC: -0,097 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 4,5 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class A2
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 421
Durchmusterung BD-22 3095
Boss General Catalogue 15385
Henry Draper Catalogue 97277