z2Reticuli


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 z2Ret, HR 1010, HD 20807, SAO 248774, WDS 03182-6230A
constellation Reticulum

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


position, motion, parallax:

position (J2000) RA: 3h 18min 12,9sec DEC: -62 30' 23''
position (J1900) RA: 3h 16min 2,3sec DEC: -62 53' 17''
proper motion (J2000) RA: 1,336 arcsec/a DEC: 0,645 arcsec/a
radial velocity 12 km/s
trigonometric parallax 0,091 arcsec

magnitude

visual magnitude 5,24
(V on UBV Johnson system)

spectral / color information

spectral class G1V
B-V-magnitude 0,6
U-B-magnitude 0
R-I-magnitude 0,34

double/multiple star system information

separation 309,6 arcsec
mag difference (of double or brightest multiple) 0,3
note Worley (1978) update of the IDS
note (category: double and multiple data): CPM with HR 1006.

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

position, motion, parallax:

position (J2000) RA: 3h 18min 13,074sec DEC: -62 30' 22,17'' 0,19 arcsec source: 16
proper motion (J2000) RA: 0,1978 arcsec/a DEC: 0,66 arcsec/a source: 25
radial velocity 12 km/s source: 25
trigonometric parallax 0,091 0,009 arcsec source: 25
galactic coord. (B1950) longitude: 278,99 latitude: -47,23
GCI unit vector (J2000) X: 0,299486 Y: 0,351329 Z: -0,88706

magnitude:

visual 5,24 (observed) source: 25
photovisual 5,1 source: 16
photographic 5,7 source: 2

spectral information:

spectral class G0 source: 96
Morgan-Keenan G1V source: 25
B-magnitude 5,84 0,05 B-V-magnitude 0,6
U-magnitude 5,84 0,05 U-B-magnitude 0

double/multiple star system information:

source of data: 19
separation between brightest and second brightest component 309,5 arcsec
magnitude difference between brightest and second brightest component 0,3
position angle 216

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
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: 3h 17min 7,399sec DEC: -62 41' 47,77'' 0,031 arcsec
position (J2000) RA: 3h 18min 12,864sec DEC: -62 30' 23''
proper motion J1950 (FK4) RA: 0,1936 arcsec/a DEC: 0,658 arcsec/a 0,007 arcsec/a in RA
0,007 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,1929 arcsec/a DEC: 0,645 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

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

spectral information:

spectral class G0
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue GC, catalogue number: 3975
Durchmusterung CP-62 265
Boss General Catalogue 3975
Henry Draper Catalogue 20807

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

position and proper motion:

position (J2000) RA: 3h 18,2min DEC: -62 30'
proper motion (J2000) RA: 0 arcsec/a DEC: 0,66 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
Aa 1978 1 11 0'' 5,2 - G2V BNU
Aa-B 1952 2 216 309,5'' 5,22 5,52 G2V ALB 1

discoverer information:

discoverer code discoverer reference
BNU Bonneau et al
ALB 1 Albany Obs. -

notes:

note Zeta (2) Ret. B has common proper motion, +1370 +660, and is CPD-63@217, Zeta (1) Ret.