1994A&A...292..494N

Query : 1994A&A...292..494N

1994A&A...292..494N - Astronomy and Astrophysics, volume 292494-500 (1994/12-2)

The hot contact binary XZ Leonis.

NIARCHOS P.G., HOFFMANN M. and DUERBECK H.W.

Abstract (from CDS):

The W UMa system XZ Leo has a spectral type A7. In 1982, its period of 0.487735 days underwent a lengthening of 0.14 sec. A photometric analysis, based on B and V light curves, is presented. A preliminary unspotted solution was obtained by the Wilson-Price synthetic light curve program. The light curves were better approximated by introducing hot spots on both components near the neck region of the common envelope, to interpret the observed light curve asymmetries. The analysis indicates that XZ Leo is a slightly evolved, hot contact binary, which undergoes partial eclipses.

Abstract Copyright: ∼

Journal keyword(s): stars: individual: XZ Leo - binaries: close - binaries: eclipsing

Simbad objects: 1

View the references in ADS

Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	V* XZ Leo	SB*	10 02 34.1959390656	+17 02 47.140374840		10.79	10.37	10.385	10.173	A8/F0V	108	0

Query : 1994A&A...292..494N

Basic data :

V* XZ Leo -- Spectroscopic Binary

* (BD,AG,...), EB* (2009AJ), V* (AN,ASAS,...), SB* (SBC9), NIR (2MASS), Opt (LAMOST)

10 02 34.1959390656 +17 02 47.140374840 (Optical) [ 0.0176 0.0163 90 ] A 2020yCat.1350....0G

09 59 50.2669227081 +17 17 17.531239600 [ 0.0176 0.0163 90 ]

218.4419036658080 +49.8041485394526 [ 0.0176 0.0163 90 ]

-11.860 1.860 [0.023 0.021 90] A 2020yCat.1350....0G

V(km/s) -2.03 [1.43] / z(~) -0.000007 [0.000005] / cz -2.03 [1.43] B 2005MNRAS.357..497B

2.7968 [0.0221] A 2020yCat.1350....0G

A8/F0V D 2011MNRAS.412.1787D

B 10.79 [0.05] D 2000A&A...355L..27H

V 10.37 [0.04] D 2000A&A...355L..27H

R 10.385 [~] D 2012AJ....143...99T

G 10.365059 [0.012365] C 2020yCat.1350....0G

I 10.173 [~] D 2012AJ....143...99T

J 9.716 [0.024] C 2003yCat.2246....0C

H 9.590 [0.032] C 2003yCat.2246....0C

K 9.545 [0.018] C 2003yCat.2246....0C

Overlay

points in this preview

2MASS DSS

All

(CDSPortal)

Send to

An access of full data is available using the icon Vizier near the identifier of the catalogue

`BD+17 2165`	`HIC 49204`	`PPM 127058`	*`V XZ Leo`**
`AG+17 1095`	`HIP 49204`	`SBC9 1902`	`Gaia DR2 622859597535110016`
`AN 357.1934`	`LAMOST J100234.49+170247.1`	*`SV P 3374`**	`Gaia DR3 622859597535110016`
`ASAS J100234+1702.8`	`2MASS J10023419+1702471`	`TIC 337710543`	`Gaia DR1 622859593239828992`
`GSC 01412-01030`	`NSVS 10265259`	`TYC 1412-1030-1`

References (108 between 1850 and 2026) (Total 108)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

Follow new references on this object

Collections of Measurements

External archives :

Link by name to the catalogue in VizieR :

`BD+17 2165`	`AG+17 1095`	`GSC 01412-01030`	`HIC 49204`	`HIP 49204`
`2MASS J10023419+1702471`	`PPM 127058`	`TYC 1412-1030-1`	*`V XZ Leo`**	`Gaia DR2 622859597535110016`
`Gaia DR3 622859597535110016`	`Gaia DR1 622859593239828992`

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

The annotation server is currently not available. Sorry for any inconvenience

To bookmark this query, right click on this link: simbad:objects in 1994A&A...292..494N and select 'bookmark this link' or equivalent in the popup menu