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	d Hyi, HR 705, HD 15008, SAO 248545, CP -69 113, FK5: 1065
constellation	Hydrus

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

position, motion, parallax:

position (J2000)	RA: 2h 21min 44.9sec	DEC: -68° 39' 34''
position (B1900)	RA: 2h 19min 58.1sec	DEC: -69° 6' 52''
proper motion (J2000)	RA: -0.05 arcsec/a	DEC: 0.002 arcsec/a
radial velocity	6 km/s note: suspected variable radial velocity
rotational velocity	163 km/s (uncertain) (variable)
trigonometric parallax	0.05 arcsec
galactic coordinates	longitude: 291.25°	latitude: -46.37°

magnitude

visual magnitude

4.09 (V on UBV Johnson system)

spectral / color information

spectral class	A3V
B-V-magnitude	0.03
U-B-magnitude	0.05
R-I-magnitude

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

position, motion, parallax:

position (J2000)	RA: 2h 21min 44.949sec	DEC: -68° 39' 33.85''	±0.06 arcsec	source: 15
proper motion (J2000)	RA: -0.0092 arcsec/a	DEC: 0.002 arcsec/a		source: 25
radial velocity	6 km/s			source: 25
trigonometric parallax	0.05 arcsec		±0.005 arcsec	source: 25
galactic coord. (B1950)	longitude: 291.25°	latitude: -46.37°

magnitude:

visual	4.09 (observed)	source: 25
photovisual	4.3	source: 2
photographic	4.3	source: 2

spectral information:

spectral class	A2		source: 96
Morgan-Keenan	A3V		source: 25
B-magnitude	4.12 ±0.05	B-V-magnitude	0.03
U-magnitude	4.17 ±0.05	U-B-magnitude	0.05

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: 2h 20min 51.202sec	DEC: -68° 53' 11.84''	±0.01 arcsec
position (J2000)	RA: 2h 21min 44.995sec	DEC: -68° 39' 33.5''
proper motion B1950 (FK4)	RA: -0.0079 arcsec/a	DEC: 0.008 arcsec/a	±0.002 arcsec/a in RA ±0.002 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0087 arcsec/a	DEC: 0.005 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	4.3 (accuracy: 2 decimals)
source of visual magnitude data	Taken from the "Henry Draper Catalogue".

spectral information:

spectral class	A2
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	FK4, catalogue number: 1065
Durchmusterung	CP-69 113
Boss General Catalogue	2872
Henry Draper Catalogue	15008