List of object types known in the Dictionary of nomenclature about this source
Other object types:
*
(2013A&A,*,...),
PM*
(2007A&A,LHS,...),
**
(BDS,CCDM,...),
MIR
(AKARI,WISEA),
Ro*
(1996ApJ),
V*
(NSV),
UV
(TD1),
NIR
(2MASS),
IR
(IRAS)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra : right ascension (unit and frame defined according to your Output Options)
dec : declination (unit and frame defined according to your Output Options)
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Opt, 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)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra : right ascension (unit and frame defined according to your Output Options)
dec : declination (unit and frame defined according to your Output Options)
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Opt, 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)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra : right ascension (unit and frame defined according to your Output Options)
dec : declination (unit and frame defined according to your Output Options)
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Opt, 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)
Syntax of radial velocity (or/and redshift) is : "value [error] quality bibcode"
value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
(redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
[error] : error of the corresponding value displayed before
(wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or '∼'(unknown)
quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
References (555 between 1850 and 2024) (Total 555)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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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 .