The output information can be reduced by specifying restrictions like range of revolutions and minimum visibility time for the target. The visibility is determined from a DataBase of Observable Bins (DBOB), each bin corresponding to a size of 2x2 degrees.
For further information on the use of this tool and a description of the different parameters, please see our Vischeck How To.
SIMBAD or NED Lookup
Please enter an object name to look it up in SIMBAD or NED;
Single Target Visibility
To calculate the visibility of a single target, please complete the following fields and "Submit" your request.
Multiple Target Visibility
To calculate the visibility of mutiple targets, please complete the following fields and "Submit" your request.
RA & Dec coordinates can be specified in several formats and all of the following examples can be processed.
Please note that sign + or - for Declination is mandatory, otherwise one may get contradictory formats.