Re: CCTV camera for Perseid

On Thu, 26 Jul 2007 05:22:41 -0700, chinkiak@xxxxxxxxx wrote:

I was looking for a CCTV camera for the coming Perseid & found one
that claim to be 0.02lux. What magnitude of meteor that can be record
with this? Or do I those camera like stellacam ll to do the job?
Thanks

The magnitude of meteor that can be recorded depends on a variety of
things besides the sensitivity of the camera, including the angular
speed of the meteor and the sort of lens you use on the camera.

Although the lux ratings for cameras are not well standardized (you
can't accurately compare camera sensitivities with this value), 0.02 lux
is not a terribly sensitive camera. A very good camera for meteor
capture is the Supercircuits PC164C. With a fisheye lens this will catch
meteors down to about magnitude 1-2. With a narrower field lens the
sensitivity will increase, but you are more likely to miss meteors.

Cameras like the Stellacam offer no advantages for meteor capture work
(but are considerably more expensive).

_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
.