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	n Aqr, 13 Aqr, HR 8093, HD 201381, SAO 164182, BD -11 5538, FK5: 794
constellation	Aquarius

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

position, motion, parallax:

position (J2000)	RA: 21h 9min 35.7sec	DEC: -11° 22' 18''
position (B1900)	RA: 21h 4min 8.8sec	DEC: -11° 46' 36''
proper motion (J2000)	RA: 0.095 arcsec/a	DEC: -0.015 arcsec/a
radial velocity	-12 km/s
rotational velocity	<17 km/s (uncertain) (variable)
trigonometric parallax	0.017 arcsec
galactic coordinates	longitude: 38.45°	latitude: -35.77°

magnitude

visual magnitude

4.51 (V on UBV Johnson system)

spectral / color information

spectral class	G8III
B-V-magnitude	0.94
U-B-magnitude	0.7
R-I-magnitude
IR-note	object is infrared source (NASA merged infrared catalogue, Schmitz et al., 1978)

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

position, motion, parallax:

position (J2000)	RA: 21h 9min 35.654sec	DEC: -11° 22' 18.12''	±0.06 arcsec	source: 15
proper motion (J2000)	RA: 0.0065 arcsec/a	DEC: -0.015 arcsec/a		source: 25
radial velocity	-12 km/s			source: 25
trigonometric parallax	0.017 arcsec		±0.002 arcsec	source: 25
galactic coord. (B1950)	longitude: 38.45°	latitude: -35.77°

magnitude:

visual	4.51 (observed)	source: 25
photovisual	4.5	source: 2
photographic	5.5	source: 2

spectral information:

spectral class	K0		source: 96
Morgan-Keenan	G8III		source: 25
B-magnitude	5.45 ±0.05	B-V-magnitude	0.94
U-magnitude	6.15 ±0.05	U-B-magnitude	0.7

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: 21h 6min 52.308sec	DEC: -11° 34' 31.13''	±0.004 arcsec
position (J2000)	RA: 21h 9min 35.652sec	DEC: -11° 22' 18.14''
proper motion B1950 (FK4)	RA: 0.0062 arcsec/a	DEC: -0.014 arcsec/a	±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC
proper motion J2000 (FK5)	RA: 0.0064 arcsec/a	DEC: -0.015 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	4.5 (accuracy: 2 decimals)
source of visual magnitude data	Taken from the "Henry Draper Catalogue".

spectral information:

spectral class	K0
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	FK4, catalogue number: 794
Durchmusterung	BD-11 5538
Boss General Catalogue	29571
Henry Draper Catalogue	201381