Please note: this site is experimental, data may be cancelled anytime, nothing is due. Read the disclaimer for more information.

The Double Star Database contains:

149731 records from the WDS catalog (Release 2019-09-05)
2942 records from the ORBIT6 catalog with 2475 matches (Release 2019-09-05)
31649 records matched to HIPPARCOS catalog
98660 records matched to Tycho-2
53329 records matched to SAO catalog
139155 records matched to Gaia DR2
9110 records from the Bright Star Catalogue - Harvard Revised (HR) catalog
184 common star names
56 double star reports (51 distinct doubles)
376 measured


If you're a newcomer, you could ask yourself: and now what I have to do?
Ok, don't panic. First, click on the Database tab and look at the left vertical bar: I prepared ready-to-use double star selections for you. Just click on the names, for example the most populars doubles list or the three stars systems list
Next, I suggest to register yourself choosing a username and password: once you're logged in, use the Setup tab to setup your site's preferences.
Remember to input your telescope's diameter (aperture): by means of the Dawes formula I can calculate the minimum separation between two stars permitted by your instrument, so you can filter out doubles too close to be seen.
Have fun.

Luke


This site is maintained during my spare time.
If you find it useful and you want to contribute, you can make a welcomed donation.



NEWS
 
2019-09-05
StelleDoppie version 2.6
 
[upd] a new layout adapts tables to windows size, or more space for data
[upd] orbits are now displayed as blue dots, not connected with lines.
      There's a serius problem with trigonometric functions precision in the language.
      I gave up. This may not be the best display solution but avoid the 
     "spaghetti orbits" effect (i.e. Zet Boo)
[new] added a popup on the right column to change list format on the fly. This is the
      same found in Setup->Preferences->List Type, but I felt uncomfortable to play with. 
      I recall you can create you own custom columns list if you login.
[fix] Excel export was not ordered as the list shown
[fix] some GAIA codes where interpreted as numbers when exporting to Excel, rounded (!)
[fix] ordering by modification date (date_mod) did not worked properly
[fix] some minor issues fixed
[upd] WDS and all related databases are now updated to the latest version.

2019-01-18
Stelle Doppie 2.5 features Gaia DR2. This release is dedicated to our friend Fabio Bocci, recently passed away.

2018-07-31
StelleDoppie version 2.4

[new] www.stelledoppie.it internet domain
[new] https (encrypted connection)
[fix] small bugs fixed in Complete tab for Aladin CDS image
[fix] small visualization errors
[fix] DEC was ignored in advanced searches, and lists saved where huge
[upd] RA,DEC input field as free-text input rather than popups
[new] RA,DEC accepts both sexagesimal and decimal degrees
[new] RA,DEC "between" function in searches
[upd] updated databases
[upd] switched to a new server



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Version: 2.6.1

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