V0716 Centauri

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

position, motion, parallax:

position (J2000)	RA: 14h 13min 39.9sec	DEC: -54° 37' 33''
position (2000.73)	RA: 14h 13min 43sec	DEC: -54° 37' 45''
position (B1900)	RA: 14h 6min 52.2sec	DEC: -54° 9' 22''
proper motion (J2000)	RA: -0.019 arcsec/a	DEC: -0.015 arcsec/a
radial velocity	66 km/s note: variable radial velocity
galactic coordinates	longitude: 314.73°	latitude: 6.35°

magnitude

visual magnitude

6.11
(V on UBV Johnson system)

spectral / color information

spectral class	B5Ve
B-V-magnitude	0.05
U-B-magnitude	-0.38

note (category: spectra):

H alpha emission.

variability information

variable star identification

V716 Cen

note (category: variability):

EB 5.96 - 6.52V, 1.49009305d.

miscellaneous information

note (category: miscellaneous):

Possible runaway star.

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

position, motion, parallax:

position (J2000)	RA: 14h 13min 39.804sec	DEC: -54° 37' 32.32''	ą0.19 arcsec	source: 16
position (2000.73)	RA: 14h 13min 43sec	DEC: -54° 37' 44''	JD: 2451810.11
proper motion (J2000)	RA: -0.0031 arcsec/a	DEC: -0.009 arcsec/a		source: 25
radial velocity	66 km/s			source: 25
galactic coord. (B1950)	longitude: 314.74°	latitude: 6.35°

magnitude:

visual	5.96 (observed)	source: 30
photovisual	6.5	source: 16

spectral information:

spectral class	B9		source: 96
Morgan-Keenan	B5Ve		source: 25
B-magnitude	6.16 ą0.05	B-V-magnitude	0.05
U-magnitude	5.78 ą0.05	U-B-magnitude	-0.38

variability information:

source of data: 30

variability type	10
var. amplitude	0.56
var. period	1.49
var. epoch	2438524 8. May 1964, 12:00:00 UT
next max light	2451810.33 22. September 2000, 19:55:12 UT

sources:

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
30	GCVS, 4th edition
Kholopov, P.N., et al., General Catalogue of Variable Stars, fourth edition, Moscow: Nauka Publishing House, 1985-88
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: 14h 10min 15.197sec	DEC: -54° 23' 31.03''	ą0.061 arcsec
position (2000.73)	RA: 14h 13min 43sec	DEC: -54° 37' 44''	JD: 2451810.11
position (J2000)	RA: 14h 13min 39.878sec	DEC: -54° 37' 32.65''
proper motion B1950 (FK4)	RA: -0.0018 arcsec/a	DEC: -0.018 arcsec/a	ą0.013 arcsec/a in RA ą0.011 arcsec/a in DEC
proper motion J2000 (FK5)	RA: -0.0022 arcsec/a	DEC: -0.015 arcsec/a
source of proper motion data	Determined by source catalog

magnitude:

visual	6.2 (accuracy: 2 decimals)
source of visual magnitude data	Taken from Harvard or San Luis photometry.

spectral information:

spectral class	B9
source of spectral data	Taken from the Henry Draper Catalogue or no spectrum in source catalog.

catalogues

source catalogue	GC, catalogue number: 19169
Durchmusterung	CP-54 5933
Boss General Catalogue	19169
Henry Draper Catalogue	124195

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

position:

position (equinox 1950.0)

RA: 14h 10min 15.2sec

DEC: -54° 23' 31''

variability informations:

variability type	EB/KE	close binary eclipsing system
magnitute at max. brightness	5.96
magnitute at min. brightness	6.52
photometric system	visual, photovisual or Johnson's V
epoch for maximum light [JD]	2438524.4069 8. May 1964, 21:45:56 UT
period [d]	1.490096
next maximum light [JD]	2451811.592932 24. September 2000, 02:13:49 UT

spectral information

spectral class

B5V

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 'Cordoba Durchmusterung'

miscanellous

ID in the GCVS catalogue	19/716
constellation	Centaurus
notes on existence	The star is equivalent to '0190717 V0717'.
There are notes in published catalog.

variability type description

variability type	description
EB	Eclipsing binary systems. These are binary systems with orbital planes so close to the observer's line of sight (the inclination i of the orbital plane to the plane orthogonal to the line of sight is close to 90 deg) that the components periodically eclipse each other. Consequently, the observer finds changes of the apparent combined brightness of the system with the period coincident with that of the components' orbital motion. EA Algol (Beta Persei)-type eclipsing systems. Binaries with spherical or slightly ellipsoidal components. It is possible to specify, for their light curves, the moments of the beginning and end of the eclipses. Between eclipses the light remains almost constant or varies insignificantly because of reflection effects, slight ellipsoidality of components, or physical variations. Secondary minima may be absent. An extremely wide range of periods is observed, from 0.2 to >= 10000 days. Light amplitudes are also quite different and may reach several magnitudes. EB Beta Lyrae-type eclipsing systems. These are eclipsing systems having ellipsoidal components and light curves for which it is impossible to specify the exact times of onset and end of eclipses because of a continuous change of a system's apparent combined brightness between eclipses; secondary minimum is observed in all cases, its depth usually being considerably smaller than that of the primary minimum; periods are mainly longer than 1 day. The components generally belong to early spectral types (B-A). Light amplitudes are usually <2 mag in V. EW W Ursae Majoris-type eclipsing variables. These are eclipsers with periods shorter than 1 days, consisting of ellipsoidal components almost in contact and having light curves for which it is impossible to specify the exact times of onset and end of eclipses. The depths of the primary and secondary minima are almost equal or differ insignificantly. Light amplitudes are usually <0.8 mag in V. The components generally belong to spectral types F-G and later.
KE	Contact systems of early (O-A) spectral type, both components being close in size to their inner critical surfaces.