catalogues and names

The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version)

SKY2000 - Master Star Catalog

Smithsonian Astrophysical Observatory Star Catalog

catalogues and names

catalogues and names	61 Vir, HR 5019, HD 115617, SAO 157844, BD -17 3813, FK5: 1345, WDS 13186-1817A
constellation	Virgo

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

position, motion, parallax:

position (J2000)	RA: 13h 18min 24.3sec	DEC: -18° 18' 41''
position (B1900)	RA: 13h 13min 10.3sec	DEC: -17° 45' 18''
proper motion (J2000)	RA: -1.07 arcsec/a	DEC: -1.065 arcsec/a
radial velocity	-9 km/s note: suspected variable radial velocity
rotational velocity	<17 km/s (uncertain) (variable)
trigonometric parallax	0.115 arcsec
galactic coordinates	longitude: 311.88°	latitude: 44.1°

magnitude

visual magnitude

4.74 (V on UBV Johnson system)

spectral / color information

spectral class	G6V
B-V-magnitude	0.71
U-B-magnitude	0.26
R-I-magnitude

double/multiple star system information

separation	231.5 arcsec
mag difference (of double or brightest multiple)	5.5
note	Worley (1978) update of the IDS

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

position, motion, parallax:

position (J2000)	RA: 13h 18min 24.314sec	DEC: -18° 18' 40.57''	±0.06 arcsec	source: 15
proper motion (J2000)	RA: -0.0751 arcsec/a	DEC: -1.065 arcsec/a		source: 25
radial velocity	-9 km/s			source: 25
trigonometric parallax	0.115 arcsec		±0.012 arcsec	source: 25
galactic coord. (B1950)	longitude: 311.89°	latitude: 44.11°

magnitude:

visual	4.74 (observed)	source: 25
photovisual	4.8	source: 2
photographic	5.6	source: 2

spectral information:

spectral class	G5		source: 96
Morgan-Keenan	G6.5V		source: 25
B-magnitude	5.45 ±0.05	B-V-magnitude	0.71
U-magnitude	5.71 ±0.05	U-B-magnitude	0.26

double/multiple star system information:

source of data: 19

separation between brightest and second brightest component	231.5 arcsec
magnitude difference between brightest and second brightest component	5.6
position angle	29 °

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: 13h 15min 47.057sec	DEC: -18° 2' 1.31''	±0.006 arcsec
position (J2000)	RA: 13h 18min 24.304sec	DEC: -18° 18' 40.86''
proper motion B1950 (FK4)	RA: -0.0754 arcsec/a	DEC: -1.072 arcsec/a	±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0752 arcsec/a	DEC: -1.069 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	4.8 (accuracy: 2 decimals)
source of visual magnitude data	Taken from the "Henry Draper Catalogue".

spectral information:

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

catalogues

source catalogue	FK4, catalogue number: 1345
Durchmusterung	BD-17 3813
Boss General Catalogue	18007
Henry Draper Catalogue	115617