SIMBAD query result

Object query : NAME GJ 644/643 system

C.D.S. - SIMBAD4 rel 1.207 - 2013.05.22CEST15:36:15

Available data : Basic data • Identifiers • Plot & images • Bibliography • Measurements • External archives • Notes • Annotations

Basic data :
NAME GJ 644/643 system -- Composite object	with radius arcmin

Other object types:	`mul` `()`
ICRS coord. (ep=J2000) :	`16 55 32.0 -08 21 30 ( ~ ) [ ~ ~ ~ ] D 1984PASP...96..439H`
FK5 coord. (ep=J2000 eq=2000) :	`16 55 32.0 -08 21 30 ( ~ ) [ ~ ~ ~ ] D 1984PASP...96..439H`
FK4 coord. (ep=B1950 eq=1950) :	`16 52 48.8 -08 16 46 ( ~ ) [ ~ ~ ~ ] D 1984PASP...96..439H`
Gal coord. (ep=J2000) :	`011.0328 +21.1179 ( ~ ) [ ~ ~ ~ ] D 1984PASP...96..439H`

essential notes:

Represents the quintuple system Wolf 629/630 composed of 2 binaries: the short period (1.7yr) astrometric binary Wolf 630, the spectroscopic binary Wolf 629 (Gliese 643) at 80'' ( 500AU), and the low-luminosity star VB 8 at 230'' ( 1500AU).

Hierarchy : number of linked objects whatever the membership probability is (see description here ) :

: 3

Display criteria :

Identifiers (1) :

NAME GJ 644/643 system

Plots and Images

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References (2 between 1850 and 2013)
Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

External archives :

Catalogue information from VizieR :

Generic search by coordinates (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 .
The list of all annotations to SIMBAD objects can be found here .

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2013.05.22-15:36:21

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