g1Fornacis


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 g1For, HR 844, HD 17713, SAO 168081, WDS 02498-2434A
constellation Fornax

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


position, motion, parallax:

position (J2000) RA: 2h 49min 51sec DEC: -24 33' 37''
position (J1900) RA: 2h 45min 25,1sec DEC: -24 58' 17''
proper motion (J2000) RA: -0,043 arcsec/a DEC: -0,127 arcsec/a
radial velocity -6 km/s

magnitude

visual magnitude 6,14
(V on UBV Johnson system)

spectral / color information

spectral class K1III
B-V-magnitude 1,07

double/multiple star system information

number of components of multiple star system 3
separation 40,9 arcsec
mag difference (of double or brightest multiple) 4,4
component ID AC
note (category: double and multiple data): AB CPM, B, 13v at 12"; C, optical.

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

position, motion, parallax:

position (J2000) RA: 2h 49min 50,977sec DEC: -24 33' 37,26'' 0,19 arcsec source: 16
proper motion (J2000) RA: -0,0033 arcsec/a DEC: -0,129 arcsec/a source: 25
radial velocity -6 km/s source: 25
galactic coord. (B1950) longitude: 214,11 latitude: -63,29
GCI unit vector (J2000) X: 0,670974 Y: 0,614025 Z: -0,415651

magnitude:

visual 6,14 (observed) source: 25
photovisual 6,2 source: 16

spectral information:

spectral class G5 source: 96
Morgan-Keenan K1III source: 25
B-magnitude 7,21 0,05 B-V-magnitude 1,07

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 12 arcsec
magnitude difference between brightest and second brightest component 6,6
position angle 145

sources:

16 PPM North and PPM South Catalogs and PPM Supplement
Roser, S., and U. Bastian, "Catalogue of Positions and Proper Motions," A&AS, Vol. 74, p. 449, 1988, and Bastian, U., et al., "Catalogue of Positions and Proper Motions - South," 1993
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 47min 38,022sec DEC: -24 45' 53,61'' 0,04 arcsec
position (J2000) RA: 2h 49min 51,008sec DEC: -24 33' 37,17''
proper motion J1950 (FK4) RA: -0,0034 arcsec/a DEC: -0,124 arcsec/a 0,007 arcsec/a in RA
0,007 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0032 arcsec/a DEC: -0,127 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 6,3 (accuracy: 2 decimals)
source of visual magnitude data Taken from Harvard or San Luis photometry.

spectral information:

spectral class G5
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

remarks for duplicity and variability

Double star in Aitken's Double Star Catalogue (Aitken 1932)

catalogues

source catalogue GC, catalogue number: 3404
Durchmusterung CD-25 1120
Boss General Catalogue 3404
Henry Draper Catalogue 17713

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

position and proper motion:

position (J2000) RA: 2h 49,8min DEC: -24 34'
proper motion (J2000) RA: -0,048 arcsec/a DEC: -0,127 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
AB 1880 6 145 12'' 6,14 12,7 K1III BU 877
AC 1880 6 157 48,8'' 6,14 10,7 - HJ 2161
1954 143 40,9''

discoverer information:

discoverer code discoverer reference
BU 877 Burnham, S.W. -
HJ 2161 Herschel, J. -

notes:

note Gamma (1) For.