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	NSV 16774, 40 Aur, HR 2143, HD 41357, SAO 58749, BD +38 1377, FK5: 2465
constellation	Auriga

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

position, motion, parallax:

position (J2000)	RA: 6h 6min 35.1sec	DEC: +38° 28' 58''
position (B1900)	RA: 5h 59min 41.4sec	DEC: +38° 29' 30''
proper motion (J2000)	RA: 0.007 arcsec/a	DEC: -0.049 arcsec/a
radial velocity	18 km/s note: spectroscopic binaries, double lined spectra note: orbital data avaible
rotational velocity	26 km/s (uncertain) (variable)
trigonometric parallax	0.004 arcsec
galactic coordinates	longitude: 173.87°	latitude: 8.53°

magnitude

visual magnitude

5.36 (V on UBV Johnson system)

spectral / color information

spectral class	A4m
B-V-magnitude	0.25
U-B-magnitude	0.15
R-I-magnitude

variability information

variable star identification

Var?

note (category: variability):

Suspected of 0.01m variability.

double/multiple star system information

note (category: spectroscopic binaries):

28.28d, K 51.4k/s, V0 +16.9k/s, msin3i 1.35, asini 16.6.

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

position, motion, parallax:

position (J2000)	RA: 6h 6min 35.099sec	DEC: +38° 28' 57.56''	±0.43 arcsec	source: 16
proper motion (J2000)	RA: 0.0009 arcsec/a	DEC: -0.049 arcsec/a		source: 25
radial velocity	18 km/s			source: 25
trigonometric parallax	0.004 arcsec		-	source: 25
galactic coord. (B1950)	longitude: 173.87°	latitude: 8.53°

magnitude:

visual	5.36 (observed)	source: 25
photovisual	5.3	source: 2
photographic	5.4	source: 16

spectral information:

spectral class	A3		source: 96
Morgan-Keenan	A4m		source: 25
B-magnitude	5.61 ±0.05	B-V-magnitude	0.25
U-magnitude	5.76 ±0.05	U-B-magnitude	0.15

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
16	PPM North and PPM South Catalogs and PPM Supplement
Roser, S., and U. Bastian, "Catalogue of Positions and Proper Motions," A&AS, Vol. 74, p. 449, 1988, and Bastian, U., et al., "Catalogue of Positions and Proper Motions - South," 1993
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: 6h 3min 8.209sec	DEC: +38° 29' 21.38''	±0.022 arcsec
position (J2000)	RA: 6h 6min 35.1sec	DEC: +38° 28' 57.62''
proper motion B1950 (FK4)	RA: 0.001 arcsec/a	DEC: -0.051 arcsec/a	±0.004 arcsec/a in RA ±0.003 arcsec/a in DEC
proper motion J2000 (FK5)	RA: 0.0009 arcsec/a	DEC: -0.05 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	5.3 (accuracy: 2 decimals)
source of visual magnitude data	Taken from Harvard or San Luis photometry.

spectral information:

spectral class	A3
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	GC, catalogue number: 7723
Durchmusterung	BD+38 1377
Boss General Catalogue	7723
Henry Draper Catalogue	41357