[AZ-Observing] Re: Sun Spot

Jeff wrote:

>I have not noticed that visually, however I did see something
>interesting with a web cam while viewing sun spots. It was partly
>cloudy and as I was watching the image on my laptop, some clouds
>(thin at first) passed in front of the Sun. Suddenly I saw a couple
>of fainter spots. When the clouds cleared, the spots could not be
>seen. I played around with the gain settings and shutter speeds and
>was able to see them in the clear.

Right.  The clouds cutting some light should be a clue.  Faster shutter 
speed usually gets it.  Through my Thousand Oaks solar filter on the C8, 400 
speed film, my best images are between 1/250 and 1/500 second exposures.  
There's a lot more light there than you'd guess at first.  :-)

Steve and Rosie Dodder
sdodder@xxxxxxxxxxx
Visit my web site at http://www.stargazing.net/Astroman

_________________________________________________________________
Store more e-mails with MSN Hotmail Extra Storage ? 4 plans to choose from! 
http://click.atdmt.com/AVE/go/onm00200362ave/direct/01/

--
See message header for info on list archives or unsubscribing, and please 
send personal replies to the author, not the list.

Other related posts: