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	c Cnc, NSV 17848, 18 Cnc, HR 3262, HD 69897, SAO 80104, BD +27 1589, FK5: 1217
constellation	Cancer

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

position, motion, parallax:

position (J2000)	RA: 8h 20min 3.9sec	DEC: +27° 13' 4''
position (B1900)	RA: 8h 13min 59.4sec	DEC: +27° 32' 30''
proper motion (J2000)	RA: -0.018 arcsec/a	DEC: -0.378 arcsec/a
radial velocity	33 km/s
rotational velocity	0 km/s (uncertain) (variable)
trigonometric parallax	0.061 arcsec
galactic coordinates	longitude: 195.78°	latitude: 30.47°

magnitude

visual magnitude

5.14 (V on UBV Johnson system)

spectral / color information

spectral class	F6V
B-V-magnitude	0.47
U-B-magnitude	-0.06

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

position, motion, parallax:

position (J2000)	RA: 8h 20min 3.856sec	DEC: +27° 13' 3.64''	±0.06 arcsec	source: 15
proper motion (J2000)	RA: -0.0014 arcsec/a	DEC: -0.378 arcsec/a		source: 25
radial velocity	33 km/s			source: 25
trigonometric parallax	0.061 arcsec		±0.006 arcsec	source: 25
galactic coord. (B1950)	longitude: 195.78°	latitude: 30.47°

magnitude:

visual	5.14 (observed)	source: 25
photovisual	5.2	source: 2

spectral information:

spectral class	F5		source: 96
Morgan-Keenan	F6V		source: 25
B-magnitude	5.61 ±0.05	B-V-magnitude	0.47
U-magnitude	5.55 ±0.05	U-B-magnitude	-0.06

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: 8h 17min 1.807sec	DEC: +27° 22' 52.07''	±0.005 arcsec
position (J2000)	RA: 8h 20min 3.85sec	DEC: +27° 13' 3.53''
proper motion B1950 (FK4)	RA: -0.0012 arcsec/a	DEC: -0.382 arcsec/a	±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0014 arcsec/a	DEC: -0.379 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	5.2 (accuracy: 2 decimals)
source of visual magnitude data	Taken from the "Henry Draper Catalogue".

spectral information:

spectral class	F5
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	FK4, catalogue number: 1217
Durchmusterung	BD+27 1589
Boss General Catalogue	11348
Henry Draper Catalogue	69897