Chris Dolan's Astrophysical Calculator

Units: CGS SI

Physical Constants

Astronomical Constants

Planetary Data

Pop a separate calculator window that you can resize and leave on your desktop.

This calculator only works if your browser can process JavaScript (e.g. Netscape version 2.0 or later or the latest version of Microsoft's browser, whatever it's called)

The Units switch above does not change the units of your calculation! It only specifies the units of the constants buttons for future entries!

Author: Chris Dolan (

Most of the JavaScript code for this calculator came (with permission) from the Scientific Calculator by Rolf Howarth. (

The code for the comment field at the top of the page came from Bruce Busby (

Last updated: 9/30/96
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