catalogues and names

The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version)

SKY2000 - Master Star Catalog

Smithsonian Astrophysical Observatory Star Catalog

The Washington Visual Double Star Catalog, 1996.0

Combined General Catalogue of Variable Stars (Vol. I-III)

catalogues and names

catalogues and names	KW Aur, 14 Aur, HR 1706, HD 33959, SAO 57799, BD +32 922 C, WDS 05154+3241AB
constellation	Auriga

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

position, motion, parallax:

position (J2000)	RA: 5h 15min 24.4sec	DEC: +32° 41' 16''
position (2000.73)	RA: 5h 15min 27sec	DEC: +32° 41' 19''
position (B1900)	RA: 5h 8min 53.5sec	DEC: +32° 34' 19''
proper motion (J2000)	RA: -0.024 arcsec/a	DEC: 0.014 arcsec/a
radial velocity	-10 km/s note: spectroscopic binaries note: orbital data avaible
rotational velocity	24 km/s (uncertain) (variable)
dynamical parallax	0.007 arcsec
galactic coordinates	longitude: 173.3°	latitude: -3.35°

magnitude

visual magnitude

5.02 (V on UBV Johnson system)

spectral / color information

spectral class	A9IVDel Del
B-V-magnitude	0.23
U-B-magnitude	0.19

variability information

variable star identification

KW Aur

note (category: variability):

Delta Sct 4.94 - 5.10V, 0.088088d. Form of light curve varies. Also nonradial pulsations of 0.096533 and 0.088243d.

double/multiple star system information

number of components of multiple star system	4
separation	14.3 arcsec
mag difference (of double or brightest multiple)	2.9
component ID	AC

note (category: double and multiple data):

AC binary. B, 11v F4V at 13" optical.

note (category: spectroscopic binaries):

ADS 3824A, 3.788506d, K 23.0k/s, V0 -9.8k/s, asini 1.20.

miscellaneous information

note (category: group membership):

Possible new Eggen group with HR 63, q.v.

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

position, motion, parallax:

position (J2000)	RA: 5h 15min 24.37sec	DEC: +32° 41' 15.17''	±0.43 arcsec	source: 16
position (2000.73)	RA: 5h 15min 27sec	DEC: +32° 41' 18''	JD: 2451810.88
proper motion (J2000)	RA: -0.0025 arcsec/a	DEC: 0.008 arcsec/a		source: 25
radial velocity	-10 km/s			source: 25
galactic coord. (B1950)	longitude: 173.3°	latitude: -3.35°

magnitude:

visual	4.99 (observed)	source: 20
photovisual	5.1	source: 2
photographic	5.2	source: 16

spectral information:

spectral class	A2		source: 96
Morgan-Keenan	Am(A9/A9/F2)		source: 44
B-magnitude	5.2 ±0.015	B-V-magnitude	0.21
U-magnitude	5.36 ±0.039	U-B-magnitude	0.16

variability information:

source of data: 30

variability type	10
var. amplitude	0.13
var. period	0.09

double/multiple star system information:

source of data: 19

separation between brightest and second brightest component	11.1 arcsec
magnitude difference between brightest and second brightest component	6.1
position angle	352 °

component	magnitude	spectral class	catalogue(s)/name(s)
A	7.95	-
B	4.99	A2	14 Aur, HR 1706, HD 33959, SAO 57799

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
19	WDS Catalog
Worley, C.E., and G.G. Douglass, Washington Catalog of Visual Double Stars 1996.0, United States Naval Observatory, 1996
20	Catalogue of Homogeneous Means in the UBV System
Mermilliod, J.C., Catalogue of Homogeneous Means in the UBV System, Institut d'Astronomie, Universite de Lausanne, 1994
25	Bright Star Catalogue, 5th edition
Hoffleit, D. and Warren, W.H. Jr., The Bright Star Catalogue, 5th Revised Edition, Version 2, 1994
30	GCVS, 4th edition
Kholopov, P.N., et al., General Catalogue of Variable Stars, fourth edition, Moscow: Nauka Publishing House, 1985-88
44	-
Abt, H.A, Morrell, N.I., 1995, ApJS, 99, 135. A Stars Paper (different from Reference in Value 38)
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: 5h 12min 8.792sec	DEC: +32° 37' 54.25''	±0.018 arcsec
position (2000.73)	RA: 5h 15min 28sec	DEC: +32° 41' 18''	JD: 2451810.88
position (J2000)	RA: 5h 15min 24.393sec	DEC: +32° 41' 15.69''
proper motion B1950 (FK4)	RA: -0.0019 arcsec/a	DEC: 0.014 arcsec/a	±0.003 arcsec/a in RA ±0.002 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0019 arcsec/a	DEC: 0.014 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	5.1 (accuracy: 2 decimals)
source of visual magnitude data	Taken from Harvard or San Luis photometry.

spectral information:

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

remarks for duplicity and variability

Double star in Aitken's Double Star Catalogue (Aitken 1932)

catalogues

source catalogue	GC, catalogue number: 6411
Durchmusterung	BD+32 922C
Boss General Catalogue	6411
Henry Draper Catalogue	33959

data from The Washington Visual Double Star Catalog, 1996.0 (Worley+, 1996)

position and proper motion:

position (J2000)	RA: 5h 15.4min	DEC: +32° 41'
proper motion (J2000)	RA: -0.025 arcsec/a	DEC: 0.012 arcsec/a

double/multiple star system information:

component	year	number of measures	position angle	angular separation	magnitude of 1st component	magnitude of 2nd component	spectral class(es)	discoverer code
AB	1830	13	342°	12.6''	5.02	11.1	A9IV	STF 653
	1909		352°	11.1''
AC	1820	48	225°	14.6''	5.02	7.95	F3V	STF 653
AD	1880	2	320°	184.5''	5.1	10.4	-	STF 653
	1908		321°	184''
BC	1903	1	22°	23.2''	-	-	-	STF 653

discoverer information:

discoverer code	discoverer	reference
STF 653	Struve, F.G.W.	-

notes:

note	14 Aur. A is the Delta Scuti-type variable KW Aur, and is also a spectroscopic binary. Proper motion of B +025 -001.

data from Combined General Catalogue of Variable Stars (Vol. I-III) (Kholopov+ 1998)

position:

position (equinox 1950.0)

RA: 5h 12min 8.8sec

DEC: +32° 37' 54''

variability informations:

variability type	DSCTC+ELL	pulsating variable star rotating variable star
magnitute at max. brightness	4.95
magnitute at min. brightness	5.08
photometric system	visual, photovisual or Johnson's V
period [d]	0.088088
rising time	50 % of period

spectral information

spectral class

A9IV

references

to a study	Vol. I GCVS (see Kholopov et al. 1985-1988)
to a chart/photograph	no chart is avaible, but the star is contained in the 'Bonner Durchmusterung'

miscanellous

ID in the GCVS catalogue	8/256
constellation	Auriga
notes on existence	The star is equivalent to '0080257 KX'.
There are notes in published catalog.

variability type description

variability type	description
DSCTC	Variables of the Delta Scuti type. These are pulsating variables of spectral types A0-F5 III-V displaying light amplitudes from 0.003 to 0.9 mag in V (usually several hundredths of a magnitude) and periods from 0.01 to 0.2 days. The shapes of the light curves, periods, and amplitudes usually vary greatly. Radial as well as nonradial pulsations are observed. The variability of some members of this type appears sporadically and sometimes completely ceases, this being a consequence of strong amplitude modulation with the lower value of the amplitude not exceeding 0.001 mag in some cases. The maximum of the surface layer expansion does not lag behind the maximum light for more than 0.1 periods. DSCT stars are representatives of the galactic disk (flat component) and are phenomenologically close to the SX Phe variables. DSCTC Low amplitude group of Delta Sct variables (light amplitude <0.1 mag in V). The majority of this type's representatives are stars of luminosity class V; objects of this subtype generally are representative of the Delta Sct variables in open clusters.
ELL	Rotating ellipsoidal variables (b Per, Alpha Vir). These are close binary systems with ellipsoidal components, which change combined brightnesses with periods equal to those of orbital motion because of changes in emitting areas toward an observer, but showing no eclipses. Light amplitudes do not exceed 0.1 mag in V.