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	t6Eri, 27 Eri, HR 1173, HD 23754, SAO 168827, CD -23 1565, FK5: 140
constellation	Eridanus

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

position, motion, parallax:

position (J2000)	RA: 3h 46min 50.9sec	DEC: -23° 14' 59''
position (B1900)	RA: 3h 42min 32.7sec	DEC: -23° 32' 42''
proper motion (J2000)	RA: -0.158 arcsec/a	DEC: -0.529 arcsec/a
radial velocity	7 km/s
rotational velocity	6 km/s (uncertain) (variable)
trigonometric parallax	0.059 arcsec
galactic coordinates	longitude: 217.34°	latitude: -50.32°

magnitude

visual magnitude

4.23 (V on UBV Johnson system)

spectral / color information

spectral class	F3III
B-V-magnitude	0.42
U-B-magnitude	0
R-I-magnitude

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

position, motion, parallax:

position (J2000)	RA: 3h 46min 50.889sec	DEC: -23° 14' 58.97''	±0.06 arcsec	source: 15
proper motion (J2000)	RA: -0.0115 arcsec/a	DEC: -0.529 arcsec/a		source: 25
radial velocity	7 km/s			source: 25
trigonometric parallax	0.059 arcsec		±0.006 arcsec	source: 25
galactic coord. (B1950)	longitude: 217.34°	latitude: -50.32°

magnitude:

visual	4.23 (observed)	source: 25
photovisual	4.3	source: 2
photographic	4.8	source: 2

spectral information:

spectral class	F8		source: 96
Morgan-Keenan	F3III		source: 25
B-magnitude	4.65 ±0.05	B-V-magnitude	0.42
U-magnitude	4.65 ±0.05	U-B-magnitude	0

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: 3h 44min 41.716sec	DEC: -23° 23' 46.59''	±0.006 arcsec
position (J2000)	RA: 3h 46min 50.874sec	DEC: -23° 14' 58.88''
proper motion B1950 (FK4)	RA: -0.0118 arcsec/a	DEC: -0.527 arcsec/a	±0.002 arcsec/a in RA ±0.002 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0116 arcsec/a	DEC: -0.528 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	F8
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	FK4, catalogue number: 140
Durchmusterung	CD-23 1565
Boss General Catalogue	4547
Henry Draper Catalogue	23754