g Trianguli Australis


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. Combined General Catalogue of Variable Stars (suspected variables)


catalogues and names g TrA, NSV 07008, HR 5671, HD 135382, SAO 253097, FK5: 560
constellation Triangulum Australe

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


position, motion, parallax:

position (J2000) RA: 15h 18min 54,6sec DEC: -68 40' 46''
position (J1900) RA: 15h 9min 34,1sec DEC: -68 18' 36''
proper motion (J2000) RA: -0,072 arcsec/a DEC: -0,031 arcsec/a
radial velocity -3 km/s
note: variable radial velocity
rotational velocity 214 km/s (uncertain) (variable)
trigonometric parallax 0,01 arcsec

magnitude

visual magnitude 2,89
(V on UBV Johnson system)

spectral / color information

spectral class A1V
B-V-magnitude 0
U-B-magnitude -0,02

variability information

variable star identification 7008

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

position, motion, parallax:

position (J2000) RA: 15h 18min 54,551sec DEC: -68 40' 46,38'' 0,06 arcsec source: 15
proper motion (J2000) RA: -0,0132 arcsec/a DEC: -0,031 arcsec/a source: 25
radial velocity -3 km/s source: 25
trigonometric parallax 0,01 0,001 arcsec source: 25
galactic coord. (B1950) longitude: 315,72 latitude: -9,55
GCI unit vector (J2000) X: -0,23503 Y: -0,277406 Z: -0,931562

magnitude:

visual 2,89 (observed) source: 25
photovisual 3,1 source: 2
photographic 3,1 source: 2

spectral information:

spectral class A0 source: 96
Morgan-Keenan A1V source: 25
B-magnitude 2,89 0,05 B-V-magnitude 0
U-magnitude 2,87 0,05 U-B-magnitude -0,02

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
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: 15h 14min 12,588sec DEC: -68 29' 48,82'' 0,01 arcsec
position (J2000) RA: 15h 18min 54,58sec DEC: -68 40' 45,98''
proper motion J1950 (FK4) RA: -0,011 arcsec/a DEC: -0,031 arcsec/a 0,002 arcsec/a in RA
0,002 arcsec/a in DEC
proper motion J2000 (FK5) RA: -0,0128 arcsec/a DEC: -0,027 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 3,1 (accuracy: 2 decimals)
source of visual magnitude data Taken from the "Henry Draper Catalogue".

spectral information:

spectral class A0
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue FK4, catalogue number: 560
Durchmusterung CP-68 2383
Boss General Catalogue 20538
Henry Draper Catalogue 135382

data from Combined General Catalogue of Variable Stars (suspected variables) (Kholopov+ 1998)

position:

position (J1950) RA: 15h 14min 12,6sec DEC: -68 29' 49''

variability informations:

variability type -
magnitute at max. brightness 2,88
magnitute at min. brightness
photometric system visual, photovisual or Johnson's V

spectral information

spectral class A1

references

to a study 612177D (designation: HR 5671)