SearchCal is a tool developed to assist the astronomers in this calibrator selection process for long baseline interferometric observations.

The science behind SearchCal is described in the 2016 paper "Pseudomagnitudes and differential surface brightness: Application to the apparent diameter of stars." by Chelli A., Duvert G., Bourgès L. et al., 2016, A&A, 589, 112.

The SearchCal user interface (check download link below) gives access to the complete JSDC catalog for stars having a spectral type estimate and to a less precise estimate for the other 2 million stars of the Tycho list for which the spectral type has not been measured (yet).

Additional help in using SearchCal results can be found on the SearchCal Wiki Page.

Documentation:

You can get the user manual in pdf format or access it online (from Help menu)

Acknowledgements: previous research work of former versions of SearchCal

• Bright calibrator request scenario : Bonneau D., Clausse J.-M., Delfosse X., et al., 2006,A&A 456, 789
• Faint calibrator request scenario : Bonneau, D., Delfosse, X., Mourard, D., et al., 2011,A&A, 535, A53