screen shot
For my friends over on Orcas.. and for anyone else looking for the best in free astronomy software for their PC
All these links will open in their own window - simply close them to return here.
Stellarium: An excellent, simple and simply beautiful natural sky planetarium
Celestia: A magnificent, interactive 3D Solar System simulator
Cartes Du Ciel: an advanced star charting program (worth riding the learning curve to master)
Here are links to Astro Physics' Polar Alignment cell phone APPS (depending on your device)
iPhone/iPad/iPod
Touch App -
Click this link to the "Astro-Physics PolarAlign" App
Windows Phone App -
Click this link to the "AP Polar Align" App
Android App -
Click this link to the "Polar Finder" App
I am also including a link to my Eyepiece Calculator (fovany.xls) - a simple spreadsheet program to generate a printable chart of powers for all your eyepieces:
Eyepiece Calculator (fovany.xls)
To calculate the magnifying power of any eyepiece for a given scope.
screen shot
Right-click here to save calculator to your local drive