Well, stacking is a very common technique in Geophysics when traces of artificial seismogrammes (e.g. for oil-fields) are being processed. Of course they must belong to the same area ! Jörg Ulrich Beinert schrieb: > > > This is aided by the fact that we can stack images to improve the signal > > to noise ratio (by the > > square root of the number of images being stacked ... from what I recall). > > This is correct. The results of this are amazing, not only with the ISS, but > also with the planets. There's some amazing stuff out there! > > > I would bet the reason that your hit rate is higher than > > Dave's is that you have a much > > larger field of view with your 90 mm scope. > > Ah, yes, you are right again. So his record is about as good as mine, maybe > even better. The scopes I'm working with are 1000 and 1250mm focal length. I > have a friend with a 10" SCT, but it's poorly collimated, but once we get it > in shape, I'll try some shots with that. I've also been considering a barlow > lens for my setup, but I need a really high quality lens for this kind of > work, and I'd also be at f/20, so I'd have a far too dark image to freeze > (the webcam doesn't gather enough light to use a short enough exposure). > I'll be looking into getting an AstroVid camera, those are supposed to be > very light sensitive, but I'm not sure I want to work with a VCR. I like > having the video right on my hard disk.... > > Ulrich > > ----------------------------------------------------------------- > Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' > in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org > http://www2.satellite.eu.org/seesat/seesatindex.html -- ========================================================================= Dr. Joerg Kampmann IBK-Consult for Real-Time - (embedded Systems) Consulting - Programming - Training Courses for QNX ------------------------------------------------------------------------- Pirolstr. 12, D-31228 Peine Tel.: +49-5171-13393 / Fax: +49-5171-13385 / Mob.: +49-177-276-3140 WWW: http://www.ibk-consult.de - Mailto:kampmann@ibk-consult.de see also: http://www.scguild.com ========================================================================= Related WWW: http://www.mh-hannover.de/institut/ag_dv_intensiv/index.htm ========================================================================= @@@ ----> QNX Software Systems has the better RTOS for PC's <------ @@@ ========================================================================= ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Sun Jun 10 2001 - 14:22:26 PDT