Astronomy-Related Applications

Display Computer Time - Retrieves the browser's local time and date then displays Date, Local Time, Time Zone Offset, Greenwich Mean Time (GMT), Julian Date, and Local Sidereal Time (LST). The only input required is the user's longitude in degrees and decimal degrees east (positive) or west (negative) of the Prime Meridian.

Calculate Image Scale - Computes the image scale given camera pixel size (in microns) and telescope focal length (in mm). Also, computes the field of view (in arcminutes and degrees) given the number of horizontal and vertical pixels of the detector.