RASC Hamilton Transit of Venus

[Ed Mizzi]

Jeff, I want to use a solar projection screen with a group of young students. Do you have ideas about how to set that up. I was hoping to use both a pair of binoculars and an 8" Dob?

Ed


On 2012-05-12, at 6:47 AM, Jeffrey Coe wrote:

> Hi RASCals,
> 
> Not to forget:  the use of a solar projection screen.
> 
> Jeff
> ----- Original Message ----- 
> From: "Al Jones" <althemanjones at gmail.com>
> To: <astronomers at hamiltonrasc.ca>
> Sent: Saturday, May 12, 2012 6:00 AM
> Subject: Re: RASC Hamilton Transit of Venus
> 
> 
>> ROGER
>> Thanks for that advice. I did not realize the mylar was a sharper image.
>> See u at the transit perhaps.
>> AL
>> 
>> On 2012-05-11, at 23:58, "Roger Hill" <Roger.Hill at hiteach.net> wrote:
>> 
>>> Al...
>>> 
>>> Mylar gives a better image.  I've used both, and while I like the colour
>>> that is produced by InCoNel filters, the image is sharper using mylar.
>>> 
>>> Further, since mylar is coated on both sides (the good filters are,
>>> anyway), if there is a pinhole or a scratch, it's less likely to go
>>> right through.
>>> 
>>> Lastly, if you drop the mylar filter, it is far more likely to survive.
>>> 
>>> Roger
>>> 
>>> -----Original Message-----
>>> From: astronomers-bounces at hamiltonrasc.ca
>>> [mailto:astronomers-bounces at hamiltonrasc.ca] On Behalf Of Al Jones
>>> Sent: Friday, May 11, 2012 7:41 PM
>>> To: astronomers at hamiltonrasc.ca
>>> Subject: RASC Hamilton Transit of Venus
>>> 
>>> Hi Gary
>>> 
>>> I have a CPC 1100 but no solar filter. I've tried to a get a glass one
>>> from Efston Science but no stock. They said mylar possible but much less
>>> durable.
>>> 
>>> Suggestions?
>>> 
>>> Thx
>>> 
>>> Al
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>> 
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> 
> 
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