beta Trianguli Australis

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

position, motion, parallax:

magnitude

visual magnitude

2.85
(V on UBV Johnson system)

spectral / color information

double/multiple star system information

separation	155 arcsec
mag difference (of double or brightest multiple)	11
note	Worley (1978) update of the IDS

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

position, motion, parallax:

magnitude:

spectral information:

double/multiple star system information:

source of data: 19

separation between brightest and second brightest component	155 arcsec
magnitude difference between brightest and second brightest component	11.1

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 (B1950)	RA: 15h 50min 42.98sec	DEC: -63° 16' 42.59''	±0.008 arcsec
position (J2000)	RA: 15h 55min 8.533sec	DEC: -63° 25' 50.13''
proper motion B1950 (FK4)	RA: -0.0278 arcsec/a	DEC: -0.396 arcsec/a	±0.002 arcsec/a in RA ±0.002 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0286 arcsec/a	DEC: -0.395 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

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

spectral information:

spectral class	F0
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

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

position and proper motion:

position (J2000)	RA: 15h 55.1min	DEC: -63° 26'
proper motion (J2000)	RA: -0.191 arcsec/a	DEC: -0.398 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
-		-	SP°	155''	2.85	14	F2III	LDS 542

discoverer information:

discoverer code	discoverer	reference
LDS 542	-	-

notes:

note

Beta TrA.

catalogues and names	b TrA, HR 5897, HD 141891, SAO 253346, CP -63 3723, FK5: 589, WDS 15551-6326
constellation	Triangulum Australe