b Coronae 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

catalogues and names b CrA, NSV 24699, HR 7259, HD 178345, SAO 211005
constellation Corona Australis

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


position, motion, parallax:

position (J2000) RA: 19h 10min 1,7sec DEC: -39° 20' 27''
position (J1900) RA: 19h 3min 9sec DEC: -39° 29' 58''
proper motion (J2000) RA: 0,003 arcsec/a DEC: -0,038 arcsec/a
radial velocity 3 km/s
trigonometric parallax 0,016 arcsec

magnitude

visual magnitude 4,11
(V on UBV Johnson system)

spectral / color information

spectral class K0II
B-V-magnitude 1,2
U-B-magnitude 1,07
R-I-magnitude 0,61

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

position, motion, parallax:

position (J2000) RA: 19h 10min 1,736sec DEC: -39° 20' 27,1'' ±0,19 arcsec source: 16
proper motion (J2000) RA: 0 arcsec/a DEC: -0,039 arcsec/a source: 25
radial velocity 3 km/s source: 25
trigonometric parallax 0,016 ±0,002 arcsec source: 25
galactic coord. (B1950) longitude: 358,14° latitude: -20,17°
GCI unit vector (J2000) X: 0,232655 Y: -0,737564 Z: -0,633933

magnitude:

visual 4,11 (observed) source: 25
photovisual 3,9 source: 16

spectral information:

spectral class G5 source: 96
Morgan-Keenan K0II source: 25
B-magnitude 5,31 ±0,05 B-V-magnitude 1,2
U-magnitude 6,38 ±0,05 U-B-magnitude 1,07

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: 19h 6min 35,486sec DEC: -39° 25' 19,53'' ±0,024 arcsec
position (J2000) RA: 19h 10min 1,724sec DEC: -39° 20' 27,06''
proper motion J1950 (FK4) RA: 0,0002 arcsec/a DEC: -0,037 arcsec/a ±0,005 arcsec/a in RA
±0,004 arcsec/a in DEC
proper motion J2000 (FK5) RA: 0,0003 arcsec/a DEC: -0,038 arcsec/a
source of proper motion data Determined by source catalog

magnitude:

visual 4,2 (accuracy: 2 decimals)
source of visual magnitude data Taken from Harvard or San Luis photometry.

spectral information:

spectral class G5
source of spectral data Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue GC, catalogue number: 26380
Durchmusterung CD-3913146
Boss General Catalogue 26380
Henry Draper Catalogue 178345