[AZ-Observing] Re: Solar Prominence Time-lapse
- From: Lucia Wheele <nyclady@xxxxxxx>
- To: "az-observing@xxxxxxxxxxxxx" <az-observing@xxxxxxxxxxxxx>
- Date: Sat, 22 Jan 2011 16:35:17 -0700
I have been trying to get off the list
Can u pls delete my address
Thanks
Lucia wheele
On Jan 22, 2011, at 1:35 PM, Dan Heim <dan@xxxxxxxxxxxxx> wrote:
> Just awesome, Tom! Curious why you decided to do that in B/W instead of
> leaving it in its "natural" H-alpha deep red?
>
> Dan
>
>
> On 1/22/2011 1:15 PM, Tom Polakis wrote:
>> The sun is showing a pretty large prominence today. Here are 10 frames over
>> a 90-minute period set into motion. The animation shows a stream running
>> upward, parallel to the limb of the sun. If I did my pixel math and trig
>> correctly, the velocity is on the order of 30,000 mph. The radial height of
>> that prominence is roughly 40,000 miles, or five earth diameters.
>>
>> http://www.pbase.com/image/132006035
>>
>> The equipment is an Imaging Source digital video camera, acquiring 600
>> frames per processed still image through a 70mm Pronto with a 60mm Coronado
>> Hydrogen Alpha filter.
>>
>> Tom
>> --
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>>
>>
>>
> --
> See message header for info on list archives or unsubscribing, and please
> send personal replies to the author, not the list.
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See message header for info on list archives or unsubscribing, and please
send personal replies to the author, not the list.
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