Gaia Sky includes a planetarium mode which is specially useful to capture videos to be displayed in a full dome. To get the best results, the screen resolution (or the screenshots resolution) should have an aspect ratio of 1:1. In the planetarium mode a few things happen:
Fisheye transform – A fisheye transform is applied to the source image.
Field of view – The field of view is increased to about 180 degrees.
View skew – In focus mode, the view is skewed about 50 degrees downwards.
To activate the planetarium mode, click on the icon in the camera section of the controls window. Exit by clicking again.