k Geminorum


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 k Gem, 77 Gem, HR 2985, HD 62345, SAO 79653, FK5: 294, WDS 07444+2424
constellation Gemini

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: 7h 44min 26,8sec DEC: +24 23' 53''
position (J1900) RA: 7h 38min 24,6sec DEC: +24 38' 16''
proper motion (J2000) RA: -0,033 arcsec/a DEC: -0,052 arcsec/a
radial velocity 21 km/s
rotational velocity 8 km/s (uncertain) (variable)
trigonometric parallax 0,026 arcsec
note (category: dynamical parallaxes): 0.018".

magnitude

visual magnitude 3,57
(V on UBV Johnson system)

spectral / color information

spectral class G8IIIa
B-V-magnitude 0,93
U-B-magnitude 0,69
R-I-magnitude 0,45

double/multiple star system information

separation 7,1 arcsec
mag difference (of double or brightest multiple) 5,8

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

position, motion, parallax:

position (J2000) RA: 7h 44min 26,844sec DEC: +24 23' 52,72'' 0,06 arcsec source: 15
proper motion (J2000) RA: -0,0024 arcsec/a DEC: -0,052 arcsec/a source: 25
radial velocity 21 km/s source: 25
trigonometric parallax 0,026 0,003 arcsec source: 25
galactic coord. (B1950) longitude: 195,85 latitude: 21,97
GCI unit vector (J2000) X: -0,400821 Y: 0,817749 Z: 0,413072

magnitude:

visual 3,57 (observed) source: 25
photovisual 3,7 source: 2

spectral information:

spectral class G5 source: 96
Morgan-Keenan G8III source: 25
B-magnitude 4,5 0,05 B-V-magnitude 0,93
U-magnitude 5,19 0,05 U-B-magnitude 0,69

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 7,2 arcsec
magnitude difference between brightest and second brightest component 4,5
position angle 240

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: 7h 41min 25,857sec DEC: +24 31' 10,48'' 0,004 arcsec
position (J2000) RA: 7h 44min 26,855sec DEC: +24 23' 52,7''
proper motion J1950 (FK4) RA: -0,0022 arcsec/a DEC: -0,055 arcsec/a 0,001 arcsec/a in RA
0,001 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0023 arcsec/a DEC: -0,052 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 3,7 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

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

catalogues

source catalogue FK4, catalogue number: 294
Durchmusterung BD+24 1759
Boss General Catalogue 10403
Henry Draper Catalogue 62345

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

position and proper motion:

position (J2000) RA: 7h 44,4min DEC: +24 24'
proper motion (J2000) RA: -0,033 arcsec/a DEC: -0,052 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
- 1832 62 225 6,2'' 3,7 8,2 G8IIIa STT 179
1983 240 7,2''

discoverer information:

discoverer code discoverer reference
STT 179 Struve, O. -

notes:

note Kappa Gem.