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Posts Made By: Jeff Young

January 12, 2006 11:11 PM Forum: Beginning Astronomy?

10 Favorite Targets in the January Sky

Posted By Jeff Young
Don't forget NGC891 and NGC2403

-- Jeff.

January 18, 2006 09:04 PM Forum: Equipment Talk

SCT male thread size

Posted By Jeff Young
Brian --

Meade 10" - 14": 3.25"-16tpi.

While I'm here:
... Meade 16": 4"-16tpi
... C11 & C14: 3.29"-16tpi

-- Jeff.

January 21, 2006 07:01 PM Forum: Eyepieces

Which eyepiece should I purchase?

Posted By Jeff Young
Gregg --

I know I'm in the minority here (for non-eyeglass wearers, anyway), but the Nagler T6's don't have enough eyerelief for me. Everytime my eyelashes even brush the glass, it sets off my blink reflex and it's a couple of seconds before I can concentrate on the view again.

I'd go with the Pentax. The Radian would be OK, but I prefer more FoV if I can get it.

-- Jeff.

January 31, 2006 05:07 PM Forum: Equipment Talk

What do you do with your 2" SCT thread diagonal ?

Posted By Jeff Young
Mine's a refractor-style, but I leave it in the secondary focuser and put a plastic cap in it. The scope is stored uncovered in an observatory.

-- Jeff.

February 6, 2006 09:14 PM Forum: Eyepieces

Steeply concave eyelens - Ugh

Posted By Jeff Young
Philip --

Interesting. I've noticed this on the T6's as well. My Tak LEs, TV Plossls, T6's, and 19mm Panoptic all fog far too readily, but I only get the halo effect on the T6. (It's certainly more concave than the Taks or Plossls, but it appears about the same as the Pan?)

Anyway, I've sworn off short eye-relief, non-vented designs as a result. I now use longer Pans at the low end, Nagler T4's in the middle, and volcano-top UO orthos at the high end.

-- Jeff.

March 16, 2006 02:45 PM Forum: Deep Sky Observing

Atmosphere limits/diminshing returns for more aperture

Posted By Jeff Young
Gary --

Interestingly, I've found neither point to be true. Resolution is dependant on aperture, so a big scope helps even with the planets where there's plenty of light to go around.

And for picking out the faint fuzzies, it's dark skies and not aperture that rules. (Aperture doesn't hurt, but I can see more from a truly dark site with my 8" than I can from home with my 16".)

-- Jeff.

April 1, 2006 11:29 PM Forum: Astro-Physics

Re: Astrophysics telescopes

Posted By Jeff Young
I, like Dwight, am a purely visual observer, and appreciate a big mirror. But my move into larger aperture instruments (a 16" LX200GPS) was accompanied with months of frustration trying to get it to work.

Salvation came in the form of an AP1200GTO. Don't know about his scopes, but boy, what a mount!

-- Jeff.

April 2, 2006 10:14 AM Forum: Pictures of Me and My Telescope and........

Making lemonade

Posted By Jeff Young
After six months of trying to correct the buzzing, Lemon Mark II was born.

Never got the dec motor sorted, but mounting polar removes it from the tracking equation. Unfortunately, it also exposes the under-design of large mass-market forks -- no taper or thrust bearings on the RA axis equates to a jiggly polar mount with horrific dampening times.

April 16, 2006 05:12 PM Forum: Pictures of Me and My Telescope and........

Making lemonade

Posted By Jeff Young
"Mark III: Lemonade" spent a few weeks mounted on the fork mount's "Bobbin". Lying on the floor to view at the zenith wasn't all that bad. But propping myself up on an elbow to view just off the zenith got old _real_ quick.

Enter 50" tall "Post", with a 10" diameter top plate (Bobbin was 32" tall, with a 16" diameter top plate). Bobbin weighed in at about 170 lbs and was a real bear getting up and down the stairs. Post tips the scales closer to 200 lbs!

Dampening time suffered a bit, going from 1/2 second to 1 second. Still, that's a long way off the 8 - 10 seconds for the polar-mounted fork.

May 28, 2006 02:15 PM Forum: Deep Sky Observing

Nebula near Antares?

Posted By Jeff Young
Mike --

I checked Bernes, Abell, Hickson, NGC, IC and Markarian and also came up empty.

(I assume the globular you're speaking of is NGC6144, about 30' to the N/NW?)

10th magnitude is pretty bright to not have been in one of these catalogs. Must be a comet?

:S

-- Jeff.

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