CDS news

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Simbad downtime

Posted by Simbad Team on 30 August 2017 09:11 CEST

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 :

Deletion of out-of-date measurements in Simbad

Posted by Simbad Team on 04 April 2017 13:35 CEST

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 if you search data on these
specific catalogues.
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

MOC output in TAP

Posted by Simbad Team on 28 March 2017 15:08 CEST

The MOC (Multi Order Coverage) standard is now available in output formats in TAP queries.

Please send us your feedback to

Downtime on April 3

Posted by Simbad Team on 27 March 2017 17:10 CEST

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:

HTTPS support

Posted by Simbad Team on 27 January 2017 12:42 CET

Secure Web protocol HTTPS is now available for SIMBAD.
The queries can be sent to SIMBAD through HTTPS or HTTP as you need.

Link from SIMBAD to VizieR

Posted by Simbad Team on 04 October 2016 14:39 CEST

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.

CDS network outage 10mn 14/1/2016

Posted by CDS admin on 12 January 2016 16:12 CET

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.

Measurements of proper-motion are now in mas.yr-1

Posted by Simbad Team on 30 November 2015 11:48 CET

Due to a better accuracy in the measurements of proper-motions, values are now stored in mas.yr-1 (instead of arcsec before)

SimWatch - follow the bibliography of your favorite objects

Posted by Simbad Team on 15 October 2015 10:56 CEST

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.

TAP Simbad evolved

Posted by CDS admin on 06 October 2015 15:47 CEST

A new version of TAP library (v2) is now used for SQL-like queries in SIMBAD :

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