z Telescopii


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 z Tel, HR 6905, HD 169767, SAO 229047
constellation Telescopium

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


position, motion, parallax:

position (J2000) RA: 18h 28min 49,9sec DEC: -49 4' 15''
position (J1900) RA: 18h 21min 7,7sec DEC: -49 7' 29''
proper motion (J2000) RA: 0,144 arcsec/a DEC: -0,242 arcsec/a
radial velocity -31 km/s
trigonometric parallax 0,027 arcsec

magnitude

visual magnitude 4,13
(V on UBV Johnson system)

spectral / color information

spectral class G8-K0III
B-V-magnitude 1,02
U-B-magnitude 0,82
R-I-magnitude 0,34 (Eggen)

miscellaneous information

note (category: group membership): Probable Hyades group.

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

position, motion, parallax:

position (J2000) RA: 18h 28min 49,903sec DEC: -49 4' 13,74'' 0,19 arcsec source: 16
proper motion (J2000) RA: 0,0151 arcsec/a DEC: -0,225 arcsec/a source: 25
radial velocity -31 km/s source: 25
trigonometric parallax 0,027 0,003 arcsec source: 25
galactic coord. (B1950) longitude: 345,83 latitude: -16,68
GCI unit vector (J2000) X: 0,0822 Y: -0,649953 Z: -0,755516

magnitude:

visual 4,13 (observed) source: 25
photovisual 3,5 source: 16

spectral information:

spectral class K0 source: 96
Morgan-Keenan G8-K0III source: 25
B-magnitude 5,15 0,05 B-V-magnitude 1,02
U-magnitude 5,97 0,05 U-B-magnitude 0,82

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: 18h 24min 58,826sec DEC: -49 6' 0,58'' 0,026 arcsec
position (J2000) RA: 18h 28min 49,916sec DEC: -49 4' 15,33''
proper motion J1950 (FK4) RA: 0,0147 arcsec/a DEC: -0,241 arcsec/a 0,006 arcsec/a in RA
0,005 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0147 arcsec/a DEC: -0,242 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 Harvard or San Luis photometry.

spectral information:

spectral class K0
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue GC, catalogue number: 25183
Durchmusterung CD-4912153
Boss General Catalogue 25183
Henry Draper Catalogue 169767