Took the scope out again, finally Cloudy transit
Oct 31

Sun filter

Posted in Astronomy at 12:01 am Add comments

I bought a Baader Solar-Filter which cost about $35 (got it from Company 7). This is a film-sheet that has a metalic filter laid on top and allows you to view the sun safely through the scope. Note: the film has to be added to the front of the scope since, if you put if after the light has been concentrated, the sunlight will burn through the film in a second (and burn through your eye in another second)! I removed the finderscope on the main scope to avoid the danger of looking through the finderscope and being blinded. I built a cardboard mask to put in front of the scope and to hold the solar-filter in place and got to try it out for 2 minutes before sunset — we were able to see the orb of the sun but because of the atmospheric turbulence, not much else. I’m hoping to try it again in the coming days and see if we can pick out a sunspot. The sun’s 11 year cycle of sunspots is at the low-end and will pick up again. Also, on November 8th, Mercury will transit the Sun so we’re going to try to see that if the sky is clear.

Leave a Reply

*
To prove that you're not a bot, enter this code
Anti-Spam Image