Due to a better accuracy in the measurements of parallax, values and errors are now stored in mas.yr-1 (instead of arcsec before)
Simbad will be down during about 15 minutes at 12:00 (UTC+2) the 30 of august.
Sorry for this inconvenience, please use the mirror website :
Some measurements coming from catalogues IRAS, IRC, SAO, CL.g (ACO), GJ
will no longer exists directly in Simbad in the "measurements" category.
Please, go on http://vizier.u-strasbg.fr/ if you search data on these
These measurements are still available from the Simbad web pages using the icon Vizier near the identifier of the catalogue, or at the bottom of the page in the section "External links"
Please send us any question about this evolution at
The MOC (Multi Order Coverage) standard is now available in output formats in TAP queries.
Please send us your feedback to firstname.lastname@example.org
A down-time is scheduled for all Strasbourg sites for CDS services (including SIMBAD) on Monday April 3, starting at 7h00 CET (5h00 GMT) and lasting for 6 to 10 hours.
We sincerely apologize for the inconvenience. We recommend the use of our mirror site during this period: http://simbad.harvard.edu/simbad/
Secure Web protocol HTTPS is now available for SIMBAD.
The queries can be sent to SIMBAD through HTTPS or HTTP as you need.
From the SIMBAD object web page, clickable VizieR icons associated to identifiers (object names) give direct
access to the entry of the objects in VizieR catalogue.
From VizieR you will be able to access pusblished catalogue data and their description.
Dear CDS users,
Due to a CDS network equipment technical upgrade, all CDS services hosted at Strasbourg (Simbad main data base, VizieR main data base Aladin image server, Web sites, ...) will be unreachable during 10mn on Thursday 14 January 2016 around 8:30pm (local time).
We apologize for any inconvenience.
Due to a better accuracy in the measurements of proper-motions, values are now stored in mas.yr-1 (instead of arcsec before)
CDS is releasing SimWatch, a tool allowing you to follow changes on SIMBAD objects.
Register to SimWatch to be notified when new papers are attached to your favourite SIMBAD objects.