(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases
Other object types:
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
position angle (in degrees North to East of the specified coordinate frame)
References (1 between 1850 and 2018)
Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
new references on this object
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 .