Posts Made By: Bob Polcyn

September 6, 2003 12:45 PM Forum: Equipment Talk

Quality EP's

Posted By Bob Polcyn

Hi Mark --
You're right to go after better quality eyepieces. I regularly use a Meade 24.5 SWA and a Nagler 9mm (type 1) and enjoy the views every time. Used but in very good condition each would be close to your upper end dollars.
Good luck. Persevere.

Bob Polcyn

September 15, 2003 02:16 PM Forum: Telescope Making

Ball bearings and scooter wheels

Posted By Bob Polcyn

Hi Sam --

Have you tried these as an alternative to teflon? My guess is that because of much lower friction scope balance would be a much larger issue.

Bob Polcyn

September 25, 2003 03:17 AM Forum: Equipment Talk

Source for a reticle illuminator

Posted By Bob Polcyn

I really appreciate the help available on Astromart forums.
Thanks all.

Bob Polcyn

December 15, 2003 05:13 AM Forum: CCD Imaging and Processing/Solar System

Comet C/2002/T7 Images and Movie

Posted By Bob Polcyn

It's a great cine -- thanks.

Bob Polcyn

January 6, 2004 01:34 PM Forum: Deep Sky Observing

Observing projects supporting education

Posted By Bob Polcyn

Hi Inge --

Your project is very ambitious. I've done single lectures offering more than a 'popular' depth of coverage and feel that I've learned a lot in the process. You're fortunate if you have a group of people interested in such a course. In a small community like mine there would probably not be enough interest.
I think that the topics you list is pretty comprehensive. I assume that you'll cover the cepheids and their role in distance estimates.
Best of luck with this project. A broader appreciation of the cosmos is very important.

Bob Polcyn

March 21, 2004 04:45 AM Forum: Equipment Talk

Short tube vs.Long Tube Refractors

Posted By Bob Polcyn

Hi Joe --

I agree with Tom's comment if you're looking at low to medium priced scopes. The high end scopes like AstroPhysics and TMB have short tube optics which will take high magnification without color or other distortions -- for a price.

Bob Polcyn

March 26, 2004 04:27 AM Forum: CCD Imaging and Processing/Solar System

Double Transit Animation

Posted By Bob Polcyn

Thanks very much Yu!

I'd love to be able to save the sequence so that I could show it to students. Is there a way it could be converted to an MPEG or Quicktime format?
Spectacular work. Thanks again.

Bob Polcyn

March 26, 2004 04:39 AM Forum: Telescope Making

"JB Weld" for mirror cell?

Posted By Bob Polcyn

Hi Jake --

The brittleness of "JB Weld" is certainly an issue. I've successfully used it in combination with metal pieces which could be bolted together (one of the pieces tapped) for extra rigidity. Roughing up the surfaces to give the "JB Weld" more surfaces to lock onto also lessens the risk of things coming loose.

Bob Polcyn

April 20, 2004 12:36 PM Forum: Deep Sky Observing

Farewell for now, dark skies

Posted By Bob Polcyn

Hi Inge --

...... a time for study. Savor all that's available on the internet; and plan for the next viewing season.
You are a great contributor to the forums. Thanks.

Bob Polcyn

May 22, 2004 02:07 PM Forum: Binoviewers

This Forum is boring!!

Posted By Bob Polcyn

Thru relatively poor sky (4 of 10 or so) I had an exquisite view of M13 using my Denk II's with Meade 24.5 SWA's and Nagler 9mm type 1's.
The scope has a Pegasus 18" primary.
There's a special stereo effect that comes with binoviewing -- stars resolved across the cluster.
M51 was a bit muddy by nice too.
I'm fairly new to binoviewing. It only seems to get better with experience.

Bob Polcyn