In this Issue
|February Meetings||January Events||Astronomy Day 2001|
|For Sale||Member News||SCT Notes|
This month’s meeting will be on Friday, February 2, at 8:00 PM in room 215 of the Aerospace Engineering Building. Montgomery car-poolers should meet at my house (518 Seminole Dr.) and be ready to head for Auburn at 7:00 PM.
This month’s star party will be on Saturday, February
24. Location to be announced.
Following our meeting last month, Robert Rock gave us an under the stars (and plenty of artificial lighting) demo of his latest acquisition – a 60mm Meade ETX 60AT Go-To refractor. For a complete review on this hi-tech, entry-level telescope, go to Rod Mollise’s Web Page http://hometown.aol.com/RMOLLISE/index.html and scroll down to: Skywatch Back Issues and Download the November -December 2000 (swnov00.pdf)
The weather did not cooperate for our January star party. Host, David DiPofi writes:
I was not a good night for a star party. It was very cold and overcast until about 8pm. One guy from Auburn showed up after dark but did not stay. Perhaps another time.
Rick and I were wondering if we could count on the Auburn Astronomical Society to help out for this year's Astronomy Day Event. Astronomy Day is on April 28th this year. We plan to make it an afternoon and evening event....and I'm guessing that we'd start at 1:00 pm for those persons out in the park wanting to take peek at the Sun, etc.Thanks,
Mark Brown firstname.lastname@example.org
Astronomy Day has traditionally been our best
attended event each year. Let’s hope for a repeat this year.
CELESTRON C-150HD 6" TELESCOPE WITH EXTRAS
LX 50 EMC - 10" SCT. I have used the scope
approximately 5 times. It is like new and I have the original box. It comes
with wedge and tripod. I simply do not have time for viewing.
Rick Allen writes:
I met Mark Brown at the Gayle Planetarium yesterday . I was one of the parents with the 2nd grade class from Lee-Scott. We had a great visit to the planetarium and all enjoyed the show
The trip to Arizona was great. Beautiful dark skies; so many stars I could hardly discern the constellations (really!). My new refractor performed very good on DSO's; not planets at that time [last spring). I got the scope vendor to replace the lens cell after the trip and this one is MUCH better. I've been viewing Jupiter and Saturn lately and the views are very nice (my 8" Dob is still better though).
Well, I'm officially out of the hobby of astronomy now. I sold all my gear. It's been fun but I had to leave. I have enjoyed the star parties and the conversations we've had. Maybe I am a little flaky, but I think mostly it's just that I have other interests that I can focus my energy on that don't require me to wait on the weather or the moon :) Anyway, I wish you well and hope you have plenty of clear skies in the future. You can call or email me anytime if you ever want to chat.
Our good buddy, Rod Mollise, of the Mobile Astronomical Society, who, among his other talents wrote the following in response to a query from a member of the SCT-User’s mail list on Schmidt-Cassegrain corrector plates. Perhaps you’ve wondered the same thing:
What is the purpose and function of the corrector plate? What does the corrector plate correct? Lecture please.Rod replied:
… expense of grinding a piece of glass to the complex shape of the corrector. If this is correct, then don't the two costs offset each other, making it equal in cost (and better optically) to create a non-spherical primary mirror -sans- a corrector lens, and would this be an equally expensive plain-old "Cassegrain" design?Rod continues:
Remember, we're talking a mass-production setting, where the goal is to eliminate as nearly as possible labor intensive activities that _have_ be carried out by humans, _such as parabolizing a mirror_. Both Meade and Celestron have developed similar methods of mass producing correctors (based on Schmidt's original method of applying a precise vacuum to a corrector plate, grinding it flat and releasing the vacuum--resulting in just the right curve). This, in effect, means they can _spit 'em out_!
Hope to see everyone at the meeting,