b Fornacis


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

  4. The Washington Visual Double Star Catalog, 1996.0


catalogues and names b For, HR 841, HD 17652, SAO 193931, FK5: 101, WDS 02491-3224
constellation Fornax

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


object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978)

position, motion, parallax:

position (J2000) RA: 2h 49min 5,4sec DEC: -32 24' 21''
position (J1900) RA: 2h 44min 54,3sec DEC: -32 49' 33''
proper motion (J2000) RA: 0,09 arcsec/a DEC: 0,155 arcsec/a
radial velocity 17 km/s
trigonometric parallax 0,026 arcsec

magnitude

visual magnitude 4,46
(V on UBV Johnson system)

spectral / color information

spectral class K0-IIIFe-0.5
B-V-magnitude 0,99
U-B-magnitude 0,69
R-I-magnitude 0,54
note (category: spectra): Also classified G8IIIb.

double/multiple star system information

separation 4,7 arcsec
mag difference (of double or brightest multiple) 9,5
note Worley (1978) update of the IDS

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

position, motion, parallax:

position (J2000) RA: 2h 49min 5,429sec DEC: -32 24' 21,4'' 0,06 arcsec source: 15
proper motion (J2000) RA: 0,0071 arcsec/a DEC: 0,155 arcsec/a source: 25
radial velocity 17 km/s source: 25
trigonometric parallax 0,026 0,003 arcsec source: 25
galactic coord. (B1950) longitude: 231,79 latitude: -64,02
GCI unit vector (J2000) X: 0,624722 Y: 0,567907 Z: -0,535914

magnitude:

visual 4,46 (observed) source: 25
photovisual 4,5 source: 2
photographic 5,5 source: 2

spectral information:

spectral class K0 source: 96
Morgan-Keenan G8.5IIIFe-0.5 source: 25
B-magnitude 5,45 0,05 B-V-magnitude 0,99
U-magnitude 6,14 0,05 U-B-magnitude 0,69

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 4,8 arcsec
magnitude difference between brightest and second brightest component 9,5
position angle 67

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
19 WDS Catalog
Worley, C.E., and G.G. Douglass, Washington Catalog of Visual Double Stars 1996.0, United States Naval Observatory, 1996
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: 2h 46min 59,844sec DEC: -32 36' 54,11'' 0,008 arcsec
position (J2000) RA: 2h 49min 5,462sec DEC: -32 24' 21,44''
proper motion J1950 (FK4) RA: 0,0071 arcsec/a DEC: 0,159 arcsec/a 0,002 arcsec/a in RA
0,002 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0075 arcsec/a DEC: 0,155 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 K0
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 101
Durchmusterung CD-32 1025
Boss General Catalogue 3387
Henry Draper Catalogue 17652

data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)

position and proper motion:

position (J2000) RA: 2h 49,1min DEC: -32 24'
proper motion (J2000) RA: 0,09 arcsec/a DEC: 0,155 arcsec/a

double/multiple star system information:

component year number of measures position angle angular separation magnitude of 1st component magnitude of 2nd component spectral class(es) discoverer code
- 1928 1 67 4,8'' 4,46 14 G8IIIb B 1031

discoverer information:

discoverer code discoverer reference
B 1031 Bos, W.H. van den -

notes:

note Beta For.