| |
| The Basics |
| WEbCam Astronomy is |
- Video Integration - Webcams are mode
to capture video at 15-30 frames per second (fps). This process
allows stacking frames on
top of each other. The more frames you stack, the brighter the
objects being captured become. datails
- Drift Integration - Because the Earth
is turning objects drift acroos the night sky. Traditionaly expensive
tracking telescope
mounts are used to keep objects centeres in the telescope. Drift
Integration allows you to shoot with a stationary mount and then
re-align the images when integrating the frames. details
- Dark Frames - Every camera has some
amount of noise that shows up as dots on the image taken in the
dark. To remedy this we take an imige with the shutter closed.
This "dark frame" is subtracted during the integration process
to resuce the noise. details
- WebCams - These cameras are inexpensive
compared to astronomical CCD cameras. There are a large variety
of cameras to choose from. There are also modifications that can
be made to improve their performance. details
|
|