How to build a telescope

Date view Thread view Subject view Author view Attachment view

From: Bill Taylor (bt4_1284@yahoo.com)
Date: Sun Dec 01 2002 - 09:24:16 PST 

Message-ID: <20021201172416.34259.qmail@web40410.mail.yahoo.com>
Date: Sun, 1 Dec 2002 09:24:16 -0800 (PST)
From: Bill Taylor <bt4_1284@yahoo.com>
Subject: How to build a telescope

Recently I have been looking into possible special projects for Spring
Semester and I came across the following web page which describes how to
build your opwn telescope. I thought some list members may be interested
to know of this site.

http://members.aol.com/sfsidewalk/sources.htm

Following are the first few paragraphs:

This Webpage contains complete instructions for constructing a Sidewalk
(Dobsonian) telescope using a six, eight, or ten inch (diameter) purchased
objective mirror. If you are interested in grinding and polishing your own
mirror, we suggest you pick up John Dobson's video (listed under "Sources"
below) as a start. Also, Victor's Telescope Making Page has step by step
instructions for mirror making. All About Telescopes, by Sam Brown (found
at Orion Telescope and Binocular Center) also has good instructions on
this art.

How much is this going to cost? Well... an 8" f/7 mirror from Coulter with
diagonal costs $219.95, plus $15.00 for shipping. If you can build an 8"
scope for twice the cost of this, consider yourself lucky! You can buy a
"Big Three" scope for only a little more; you can also buy used for
less... Something else must be motivating you to "build your own." This
Webpage is for you... and your daughter and/or son!

You will need to purchase one objective ("primary") mirror and one
diagonal flat, ("secondary) mirror, in order to build the telescope.
Mirrors may be purchased from mail-order telescope supply houses. Coulter
Optical is an excellent, dependable source for good-quality, inexpensive
mirrors, so we have included their address in the "Sources" list below.
Orion Telescope and Binocular Center also sell mirrors, as well as alot of
other stuff.

=====
Bill Taylor
San Francisco
415 661 9667

__________________________________________________
Do you Yahoo!?
Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
http://mailplus.yahoo.com

Date view Thread view Subject view Author view Attachment view

This archive was generated by hypermail 2.1.3 : Mon Aug 04 2003 - 16:18:08 PDT