To apply an heliocentric correction, Peranso requires the Right Ascension and Declination (J2000.0) coordinates of the related object. The Star identification form allows to : 

    • enter the coordinates directly in the R.A. and Decl. fields of the form, or:  

    • retrieve the coordinates from the AAVSO VSX or General Catalogue of Variable Stars (GCVS), using the name of the variable. Enter that name in the Variable star name field and click the Get coordinates button. If a correct name has been entered, the corresponding coordinates will appear in the R.A. and Decl. fields.



Click the Start heliocentric correction button to calculate the time correction values. The Preview table will be updated to reflect the corrected times. Click Cancel to abort the above operation.