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	8 Aql, HR 7101, HD 174589, SAO 142706, BD -3 4392, FK5: 3500
constellation	Aquila

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

position, motion, parallax:

position (J2000)	RA: 18h 51min 22.1sec	DEC: -3° 19' 4''
position (B1900)	RA: 18h 46min 7sec	DEC: -3° 26' 5''
proper motion (J2000)	RA: 0 arcsec/a	DEC: -0.02 arcsec/a
radial velocity	12 km/s note: variable radial velocity
galactic coordinates	longitude: 29.97°	latitude: -1.5°

magnitude

visual magnitude

6.1 (V on UBV Johnson system)

spectral / color information

spectral class	F2III
B-V-magnitude	0.3
U-B-magnitude	0.09

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

position, motion, parallax:

position (J2000)	RA: 18h 51min 22.15sec	DEC: -3° 19' 4.27''	±0.22 arcsec	source: 15
proper motion (J2000)	RA: 0 arcsec/a	DEC: -0.02 arcsec/a		source: 25
radial velocity	12 km/s			source: 25
galactic coord. (B1950)	longitude: 29.98°	latitude: -1.5°

magnitude:

visual	6.1 (observed)	source: 25
photovisual	6	source: 2
photographic	6.1	source: 2

spectral information:

spectral class	A3		source: 96
Morgan-Keenan	F2III		source: 25
B-magnitude	6.4 ±0.05	B-V-magnitude	0.3
U-magnitude	6.49 ±0.05	U-B-magnitude	0.09

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 (B1950)	RA: 18h 48min 44.546sec	DEC: -3° 22' 40.7''	±0.016 arcsec
position (J2000)	RA: 18h 51min 22.148sec	DEC: -3° 19' 4.79''
proper motion B1950 (FK4)	RA: -0.0002 arcsec/a	DEC: -0.025 arcsec/a	±0.004 arcsec/a in RA ±0.003 arcsec/a in DEC
proper motion J2000 (FK5)	RA: 0 arcsec/a	DEC: -0.025 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	6 (accuracy: 2 decimals)
source of visual magnitude data	Taken from Harvard or San Luis photometry.

spectral information:

spectral class	A3
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	GC, catalogue number: 25862
Durchmusterung	BD-03 4392
Boss General Catalogue	25862
Henry Draper Catalogue	174589