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last night
last nighet i draged my 19in dob out to the front of this traler park. I
read did think anyone world stao and avave a look see, but it was a test of of me and how well i could do. by the time i was set up, i was tired, so i need to rebuld my powers some befor i male the 4 mile lng walk. i had talen a few ep's out so i could test them, the 2in telveu is not for this scope. the 25mm was awesome in its view of the moon, the 7mm tel vel gave me real clost ups of the foon, look like i was titting on the surface with it. the ortho gave good close ups too, the no named 13mm gave good viweses.by the tinw i ahd sent about 2 hours out there i was dead tird so i came in. got to rebild by powers up befor malinke that 4 mile walk. -- There are those who believe that life here, began out there, far across the universe, with tribes of humans, who may have been the forefathers of the Egyptians, or the Toltecs, or the Mayans. Some believe that they may yet be brothers of man, who even now fight to survive, somewhere beyond the heavens. The Lone Sidewalk Astronomer of Rosamond Telescope Buyers FAQ http://home.inreach.com/starlord Sidewalk Astronomy www.sidewalkastronomy.info The Church of Eternity http://home.inreach.com/starlord/church/Eternity.html AD World http://www.adworld.netfirms.com/ |
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last night
Starlord wrote:
last nighet i draged my 19in dob out to the front of this traler park. I read did think anyone world stao and avave a look see, but it was a test of of me and how well i could do. by the time i was set up, i was tired, so i need to rebuld my powers some befor i male the 4 mile lng walk. i had talen a few ep's out so i could test them, the 2in telveu is not for this scope. Dear Starlord, Congratulations! Out of curiosity, what is the focal length or f-ratio of this Dob? It's interesting that the aperture is almost identical to one of William Herschel's most productive reflectors at around 18.7" -- that was a speculum metal mirror, of course, and we see various views about what size of modern model might be roughly equivalent (with optical quality varying now as then, of course). the 25mm was awesome in its view of the moon, the 7mm tel vel gave me real clost ups of the foon, look like i was titting on the surface with it. the ortho gave good close ups too, the no named 13mm gave good viweses.by the tinw i ahd sent about 2 hours out there i was dead tird so i came in. got to rebild by powers up befor malinke that 4 mile walk. Let's see, if you scope were around f/4.5, then the 7mm tel would give something like 300X. It sounds like you may have had quite good seeing. With my 20cm f/6 Dob and 7.5mm EP plus 2X Barlow, I could go up to 320X -- but in the Sacramento Valley of California, that might call for really nice seeing. Best, Margo |
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