g2Normae


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 g2Nor, HR 6072, HD 146686, SAO 243643, FK5: 604, WDS 16198-5009
constellation Norma

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


object is infrared source (Engels et al., 1982)

position, motion, parallax:

position (J2000) RA: 16h 19min 50,4sec DEC: -50 9' 20''
position (J1900) RA: 16h 12min 21,3sec DEC: -49 54' 37''
proper motion (J2000) RA: -0,155 arcsec/a DEC: -0,053 arcsec/a
radial velocity -29 km/s
rotational velocity =<12 km/s (uncertain) (variable)
trigonometric parallax 0,044 arcsec

magnitude

visual magnitude 4,02
(V on UBV Johnson system)

spectral / color information

spectral class G8III
B-V-magnitude 1,08
U-B-magnitude 1,16
R-I-magnitude 0,58

double/multiple star system information

separation 44,9 arcsec
mag difference (of double or brightest multiple) 6
note Worley (1978) update of the IDS

miscellaneous information

note (category: group membership): Hyades group.

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

position, motion, parallax:

position (J2000) RA: 16h 19min 50,443sec DEC: -50 9' 19,98'' 0,06 arcsec source: 15
proper motion (J2000) RA: -0,0161 arcsec/a DEC: -0,053 arcsec/a source: 25
radial velocity -29 km/s source: 25
trigonometric parallax 0,044 0,004 arcsec source: 25
galactic coord. (B1950) longitude: 333,31 latitude: 0,01
GCI unit vector (J2000) X: -0,271177 Y: -0,580488 Z: -0,767787

magnitude:

visual 4,02 (observed) source: 25
photovisual 4,1 source: 2

spectral information:

spectral class K0 source: 96
Morgan-Keenan G8III source: 25
B-magnitude 5,1 0,05 B-V-magnitude 1,08
U-magnitude 6,26 0,05 U-B-magnitude 1,16

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 44,9 arcsec
magnitude difference between brightest and second brightest component 6,1
position angle 12

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: 16h 16min 5,341sec DEC: -50 2' 5,68'' 0,011 arcsec
position (J2000) RA: 16h 19min 50,415sec DEC: -50 9' 20,19''
proper motion J1950 (FK4) RA: -0,0162 arcsec/a DEC: -0,055 arcsec/a 0,003 arcsec/a in RA
0,002 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0164 arcsec/a DEC: -0,056 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 4,1 (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: 604
Durchmusterung CD-4910536
Boss General Catalogue 21933
Henry Draper Catalogue 146686

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

position and proper motion:

position (J2000) RA: 16h 19,8min DEC: -50 9'
proper motion (J2000) RA: -0,155 arcsec/a DEC: -0,053 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
- 1900 4 1 41,7'' 4,02 10,1 G8III HJ 4841
1959 12 44,9''

discoverer information:

discoverer code discoverer reference
HJ 4841 Herschel, J. -

notes:

note Gamma (2) Nor.