AZ Canis Minoris

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

position, motion, parallax:

position (J2000)	RA: 7h 44min 7.4sec	DEC: +2° 24' 18''
position (B1900)	RA: 7h 38min 55sec	DEC: +2° 38' 39''
proper motion (J2000)	RA: -0.048 arcsec/a	DEC: -0.022 arcsec/a
radial velocity	15 km/s
galactic coordinates	longitude: 216.84°	latitude: 12.81°

magnitude

visual magnitude

6.47
(V on UBV Johnson system)

spectral / color information

spectral class	F0III:
B-V-magnitude	0.2
U-B-magnitude	0.14

variability information

variable star identification

AZ CMi

note (category: variability):

Delta Sct 6.43 - 6.50V, 0.09526d.

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

position, motion, parallax:

position (J2000)	RA: 7h 44min 7.609sec	DEC: +2° 24' 19.77''	ą0.35 arcsec	source: 17
proper motion (J2000)	RA: -0.0016 arcsec/a	DEC: -0.003 arcsec/a		source: 25
radial velocity	15 km/s			source: 25
galactic coord. (B1950)	longitude: 216.85°	latitude: 12.81°

magnitude:

visual	6.4 (observed)	source: 31
photovisual	6.3	source: 2
photographic	6.8	source: 16

spectral information:

spectral class	F0		source: 96
Morgan-Keenan	F0III:		source: 25
B-magnitude	6.67 ą0.05	B-V-magnitude	0.2
U-magnitude	6.81 ą0.05	U-B-magnitude	0.14

variability information:

source of data: 30

variability type	10
var. amplitude	0.07
var. period	0.1
var. epoch	2440886 26. October 1970, 12:00:00 UT
next max light	2452219.2 5. November 2001, 16:48:00 UT

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
17	ACRS
Corbin, T.E., and S.E. Urban, Astrographic Catalog Reference Stars, United States Naval Observatory, 1991
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
31	CRM' (non-GCVS variable data)
Warren, W.H. Jr., Northern Hemisphere Catalog of Red Magnitudes, 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: 7h 41min 31.249sec	DEC: +2° 31' 33.73''	ą0.055 arcsec
position (J2000)	RA: 7h 44min 7.422sec	DEC: +2° 24' 17.93''
proper motion B1950 (FK4)	RA: -0.0034 arcsec/a	DEC: -0.024 arcsec/a	ą0.01 arcsec/a in RA ą0.01 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0032 arcsec/a	DEC: -0.022 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	6.3 (accuracy: 2 decimals)
source of visual magnitude data	Taken from Harvard or San Luis photometry.

spectral information:

spectral class	F0
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	GC, catalogue number: 10410
Durchmusterung	BD+02 1761
Boss General Catalogue	10410
Henry Draper Catalogue	62437

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

position:

position (equinox 1950.0)

RA: 7h 41min 31.2sec

DEC: +2° 31' 34''

variability informations:

variability type	DSCTC	pulsating variable star
magnitute at max. brightness	6.44
magnitute at min. brightness	6.51
photometric system	visual, photovisual or Johnson's V
epoch for maximum light [JD]	2440886.0713 26. October 1970, 13:42:40 UT
period [d]	0.09526
next maximum light [JD]	2452219.1535 5. November 2001, 15:41:02 UT

spectral information

spectral class

F0III

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	15/79
constellation	Canis Minor
notes on existence	The star is equivalent to '0150080 BB'.

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.