5 Lyn


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 5 Lyn, HR 2293, HD 44708, SAO 25733, WDS 06268+5825A
constellation Lynx

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: 6h 26min 48,9sec DEC: +58 25' 2''
position (J1900) RA: 6h 18min 5sec DEC: +58 28' 19''
proper motion (J2000) RA: -0,005 arcsec/a DEC: -0,009 arcsec/a
radial velocity -3 km/s
note: spectroscopic binaries
rotational velocity <19 km/s
trigonometric parallax 0,005 arcsec

magnitude

visual magnitude 5,21
(V on UBV Johnson system)

spectral / color information

spectral class K4III
B-V-magnitude 1,53
U-B-magnitude 1,88

double/multiple star system information

number of components of multiple star system 3
separation 95,4 arcsec
mag difference (of double or brightest multiple) 2,6
component ID AC
note (category: double and multiple data): B, 10v at 31" optical; C, G8III probably optical. D, 12v at 80".

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

position, motion, parallax:

position (J2000) RA: 6h 26min 48,884sec DEC: +58 25' 2,86'' 0,2 arcsec source: 52
proper motion (J2000) RA: -0,0009 arcsec/a DEC: 0,002 arcsec/a source: 25
radial velocity -3 km/s source: 25
trigonometric parallax 0,005 - source: 25
galactic coord. (B1950) longitude: 156,53 latitude: 19,78
GCI unit vector (J2000) X: -0,061137 Y: 0,520146 Z: 0,851887

magnitude:

visual 5,21 (observed) source: 25
photovisual 5,5 source: 2
photographic 6,5 source: 16

spectral information:

spectral class K2 source: 96
Morgan-Keenan K4III source: 25
B-magnitude 6,74 0,05 B-V-magnitude 1,53
U-magnitude 8,62 0,05 U-B-magnitude 1,88

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 31,4 arcsec
magnitude difference between brightest and second brightest component 6,69
position angle 139

component magnitude spectral class catalogue(s)/name(s)
A 5,21 K2 5 Lyn, HR 2293, HD 44708, SAO 25733
B 7,9 G5

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
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
52 PPMN-HP subset
PPMN Star Catalogue (Reference 16) High-Precision Subset (Code H)
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 22min 27,087sec DEC: +58 26' 49,89'' 0,018 arcsec
position (J2000) RA: 6h 26min 48,895sec DEC: +58 25' 1,92''
proper motion J1950 (FK4) RA: -0,0004 arcsec/a DEC: -0,009 arcsec/a 0,004 arcsec/a in RA
0,002 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0006 arcsec/a DEC: -0,009 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 5,5 (accuracy: 2 decimals)
source of visual magnitude data Taken from Harvard or San Luis photometry.

spectral information:

spectral class K2
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: 8287
Durchmusterung BD+58 927
Boss General Catalogue 8287
Henry Draper Catalogue 44708

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

position and proper motion:

position (J2000) RA: 6h 26,8min DEC: +58 25'
proper motion (J2000) RA: -0,008 arcsec/a DEC: 0,004 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 1879 5 139 30,3'' 5,21 11,9 K4III S 514
1961 - 31,4''
AC 1879 6 272 96'' 5,21 7,9 - S 514

discoverer information:

discoverer code discoverer reference
S 514 South, J. -

notes:

note 5 Lyn. A is a spectroscopic binary.