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Coathanger CR 399

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Posts Made By: Ron Bee

February 26, 2007 04:59 PM Forum: Eyepieces

Radians: performance variations

Posted By Ron Bee
Well, if I may submit that there're probably more variations amongst eyeballs than there are in the Radians ;-). Afterall, my pairs never got the QC they should have deserved ;-). Also, most people (including me) seem to be able to match one or more pair just fine for binoviewing.

Regarding the reflection, yes this can happen. I think someone determined long time ago that light can reflect from the cornea and onto the concave lens of the Radian. This can easily be verified by the movement of the reflection.

Ron B[ee]

October 25, 2007 04:22 AM Forum: Solar System Observing

Comet 17P/Holmes is undergoing a spectacular erupt

Posted By Ron Bee
Conditions couldn't have been worse :-( around here in southern CA except clouds of course ;-). The sky was full of smokes from the fire at dust, near full Moon shining brightly. But I could make out two stars in the NE tonight and small what looked like a real dim star below it, none of which were very bright because of the smokes. Slipping in
my 40mm Pentax XL (16x) into my 5-inch NP127 Light Cup, all was clear - it was the comet a roundish, *nonstellar* glow with a hint of a stellar core! The core was easy with my 30mm Ultima (22x) and 12mm Radian (55x). But the best view was through my 2-4mm Nagler zoom (165x-330x) and lots of fun zooming back and forth. At 330x, it looks like a circular glow swirling around (due to bad seeing and wind ;-) a bright round core. No tail :-(. What a sight - I could hardly wait when the smokes clear and clear sky return. Color looked yellowish at low power but I don't rely on it tonight because of the smokes. Later in the session, I couldn't even see the comet naked eye anymore due to more
smokes.

This is the best of my attempt to catch the image with my DSLR and a Tele Vue 2X Barlow. Note a star in the lower left hand corner. Visually it looked a lot of heck better.

Ron B[ee]

November 17, 2007 07:05 AM Forum: Solar System Observing

Lunar X - saw it

Posted By Ron Bee
Thanks to Dana for the tip. I've heard about the "Lunar X" feature but I've never seen it yet and got to see and image it for the first time tonight. "X" surely did mark the spot ;-).

Ron B[ee]

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