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	g Tri, 9 Tri, HR 664, HD 14055, SAO 55427, BD +33 397, FK5: 79
constellation	Triangulum

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

position, motion, parallax:

position (J2000)	RA: 2h 17min 18.9sec	DEC: +33° 50' 50''
position (B1900)	RA: 2h 11min 22sec	DEC: +33° 23' 5''
proper motion (J2000)	RA: 0.047 arcsec/a	DEC: -0.051 arcsec/a
radial velocity	14 km/s note: variable radial velocity
rotational velocity	208 km/s (uncertain) (variable)
trigonometric parallax	0.039 arcsec
galactic coordinates	longitude: 142.65°	latitude: -25.71°

magnitude

visual magnitude

4.01 (V on UBV Johnson system)

spectral / color information

spectral class	A1Vnn
B-V-magnitude	0.02
U-B-magnitude	0.02
R-I-magnitude

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

position, motion, parallax:

position (J2000)	RA: 2h 17min 18.87sec	DEC: +33° 50' 50''	±0.06 arcsec	source: 15
proper motion (J2000)	RA: 0.0038 arcsec/a	DEC: -0.051 arcsec/a		source: 25
radial velocity	14 km/s			source: 25
trigonometric parallax	0.039 arcsec		±0.004 arcsec	source: 25
galactic coord. (B1950)	longitude: 142.66°	latitude: -25.71°

magnitude:

visual	4.01 (observed)	source: 25
photovisual	4.1	source: 2

spectral information:

spectral class	A0		source: 96
Morgan-Keenan	A1Vnn		source: 25
B-magnitude	4.03 ±0.05	B-V-magnitude	0.02
U-magnitude	4.05 ±0.05	U-B-magnitude	0.02

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 14min 20.011sec	DEC: +33° 37' 1.46''	±0.005 arcsec
position (J2000)	RA: 2h 17min 18.869sec	DEC: +33° 50' 50.16''
proper motion B1950 (FK4)	RA: 0.0037 arcsec/a	DEC: -0.046 arcsec/a	±0.001 arcsec/a in RA ±0.001 arcsec/a in DEC
proper motion J2000 (FK5)	RA: 0.0037 arcsec/a	DEC: -0.05 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	4.1 (accuracy: 2 decimals)
source of visual magnitude data	Taken from the "Henry Draper Catalogue".

spectral information:

spectral class	A0
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	FK4, catalogue number: 79
Durchmusterung	BD+33 397
Boss General Catalogue	2742
Henry Draper Catalogue	14055