z1Reticuli

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

catalogues and names z1Ret, NSV 15672, HR 1006, HD 20766, SAO 248770
constellation Reticulum

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: 3h 17min 46,2sec DEC: -62° 34' 31''
position (J1900) RA: 3h 15min 35,8sec DEC: -62° 57' 28''
proper motion (J2000) RA: 1,339 arcsec/a DEC: 0,648 arcsec/a
radial velocity 12 km/s
trigonometric parallax 0,097 arcsec

magnitude

visual magnitude 5,54
(V on UBV Johnson system)

spectral / color information

spectral class G2.5VFe1Hdel 1
B-V-magnitude 0,64
U-B-magnitude 0,06
R-I-magnitude 0,34

variability information

note (category: variability): Nearby star suspected of variability from discordant photometric observations.

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 1010.

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

position, motion, parallax:

position (J2000) RA: 3h 17min 46,315sec DEC: -62° 34' 31,04'' ±0,19 arcsec source: 16
proper motion (J2000) RA: 0,1973 arcsec/a DEC: 0,652 arcsec/a source: 25
radial velocity 12 km/s source: 25
trigonometric parallax 0,097 ±0,01 arcsec source: 25
galactic coord. (B1950) longitude: 279,12° latitude: -47,22°
GCI unit vector (J2000) X: 0,299473 Y: 0,349932 Z: -0,887617

magnitude:

visual 5,54 (observed) source: 25
photovisual 5,5 source: 16

spectral information:

spectral class G0 source: 96
Morgan-Keenan G2.5VHdel1 source: 25
B-magnitude 6,18 ±0,05 B-V-magnitude 0,64
U-magnitude 6,24 ±0,05 U-B-magnitude 0,06

double/multiple star system information:

source of data: 25
separation between brightest and second brightest component 309,5 arcsec
magnitude difference between brightest and second brightest component 0,3

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
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 16min 40,785sec DEC: -62° 45' 57,85'' ±0,027 arcsec
position (J2000) RA: 3h 17min 46,172sec DEC: -62° 34' 31,46''
proper motion J1950 (FK4) RA: 0,1946 arcsec/a DEC: 0,661 arcsec/a ±0,006 arcsec/a in RA
±0,005 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,1939 arcsec/a DEC: 0,648 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 G0
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue GC, catalogue number: 3966
Durchmusterung CP-63 217
Boss General Catalogue 3966
Henry Draper Catalogue 20766