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Posts Made By: Gary Carter

February 4, 2010 03:46 AM Forum: Reflectors

Glued secondary ?

Posted By Gary Carter
I doubt that the fact the secondary is glued is the source of your astigmatism. Have you performed a critical alignment of the primary and secondary? Is the eyepiece a known good performer? If so I'd guess it is the primary that is the culprit. You might consider having it tested.

February 18, 2010 03:22 AM Forum: TeleVue

TeleVue Dioptrx

Posted By Gary Carter
Ditto! I use a 1.5 Dioptrx on my 20T2...what a wonderful invention indeed (both of 'em grin)

March 20, 2010 05:23 PM Forum: Equipment Talk

plumbing the rear cell on a C11 ?

Posted By Gary Carter
John,

I think this order should work: (I verified I could do it with my C11 using a JMI focuser)

1) WO Focuser,
2) 6.3 focal reducer (requires 2" male to SCT thread adapter),
3) 2" visual back,
4) diagonal.

You will have limited view to the zenith with this arrangement if you are still fork mounted.

Note: My JMI Focuser includes a large SCT thread adapter and thus is attached directly to the C11 rear cell.

Regards,

March 26, 2010 03:16 AM Forum: Equipment Talk

Best Year's For Cave Astrola's Mirrors And Scope's

Posted By Gary Carter
Mike,

You may want to pose this question on the Cavetelescopes ยท Cave Astrola Telescopes group on Yahoo too.

Regards,

April 1, 2010 02:07 AM Forum: After Dark

Astronomy in the Gaza

Posted By Gary Carter
A reality they have never experienced seen from a reality I have never experienced.....

April 1, 2010 02:51 AM Forum: Bad to the Bone Autos

I got a supercharged engine sittin under my hood

Posted By Gary Carter
10 qwaaaks!!!


Oh....and the car is cool too!

April 4, 2010 02:17 PM Forum: Equipment Talk

Motorized GoTo and Tracking Dob Mount

Posted By Gary Carter
Sounds like the Tom Osypowski EQ platform might fit your bill.....

Example here: http://www.astromart.com/classifieds/details.asp?classified_id=672135
Review here: http://www.cloudynights.com/item.php?item_id=627
Website here: http://astronomy-mall.com/regular/products/eq_platforms/pg8.htm

April 14, 2010 03:16 AM Forum: Equipment Talk

Is the C8 too heavy for a Vixen GP?

Posted By Gary Carter
Celestron used to sell the SPC-8 back in the mid to late '80s which consisted of a C8 on a Super Polaris mount - a close cousin to the Great Polaris. You will find an example in http://www.telescopebluebook.com/

As you have calculated the C8 is at upper limit of the mount's weight capacity but it will serve you well for a visual setup.

June 4, 2010 07:17 PM Forum: Equipment Talk

C14 Autopsy report

Posted By Gary Carter
A vice is exactly what came to my mind as I looked at the pattern depicted in the photos and pondered the 180 degree description. But why clamp the secondary in a vice? Weird!

June 5, 2010 06:09 AM Forum: After Dark

Amazing spacecraft.

Posted By Gary Carter
Updated May 24, 2010 at 5:30 p.m. PDT

Engineers successfully reset a computer onboard Voyager 2 that caused an unexpected data pattern shift, and the spacecraft resumed sending properly formatted science data back to Earth on Sunday, May 23. Mission managers at NASA's Jet Propulsion Laboratory in Pasadena, Calif., had been operating the spacecraft in engineering mode since May 6. They took this action as they traced the source of the pattern shift to the flip of a single bit in the flight data system computer that packages data to transmit back to Earth. In the next week, engineers will be checking the science data with Voyager team scientists to make sure instruments onboard the spacecraft are processing data correctly.

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