- Celestron Regal 65ED M2
- Review: The Vixen FL55ss
- PrimaLuceLab Eagle Review
- interstellarum Deep Sky Guide Desk Edition
- Chronicling the Golden Age of Astronomy: A History of Visual Observing from...
- Omegon Mini Track LX2 Review
- Review of the APM 152 ED serial number 245
- THE BURGESS 24MM MODIFIED ERFLE & 10MM ULTRAMONO
- APM 140mm DOUBLET APO REFRACTOR
- Comparison of the Boltwood II and Sky Alert Cloud Sensors
- Chile Dilly!
- MONO & BINO VIEWING WITH THE BAADER MORPHEUS 17.5MM EYEPIECE
- The Eye of the Flak (Das Auge der Flak)
- COMPARING THE MASUYAMA 25MM 52°, 25MM 65°, AND 26MM 85°
- BRESSER 4 Inch f 4.5 AR 102XS Refractor visual observers’ REVIEW
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How to . . . Archives
Sep 15 2006 06:06 AM | dave b in How to . . .
In a past life, I used to design shipping packaging for electronic testing equipment.
Author name: Dave Bonandrini
Mar 07 2006 04:46 AM | John Jarosz in Amateur Telescope Making (ATM)
I've been looking at helical focusers for a while now as I wanted to use one in the scope I'm designing. One that caught my eye is from a website in Canada. It seems the man behind this particular design is no longer making them or at least is on hiatus.
Author name: John Jarosz
Feb 28 2006 01:41 PM | darkskyfarm in How to . . .
Look anywhere at a star party and there it is, in myriad renditions, that trove containing our beloved optical gems - the eyepiece box!
Author name: John Mills
Feb 02 2006 02:09 AM | Guest in How to . . .
The moon, the moon, came the cry from the back of my car one night
Author name: Bill Diamond
Jan 07 2006 03:33 PM | Sidney in How to . . .
More Power Scotty!
Author name: Bob Kerner
Dec 20 2005 03:44 AM | matt in How to . . .
Making a sturdy wood tripod out of a flimsy aluminium tripod.
Author name: Chauveau Mathieu
Dec 19 2005 05:26 AM | Joe Cipriano in How to . . .
Cleaning the optics of our telescopes is something most of us dread
Author name: Joe Cipriano
Dec 05 2005 08:43 AM | Guest in How to . . .
Telescope piers can be designed and built to meet predetermined specifications. This paper treats the specification of pier deflection
Author name: Dennis Persyk
Oct 19 2005 05:00 AM | Guest in How to . . .
Dew frustrates me! Growing up on a tobacco farm, harvesting was an early morning event with dew as heavy as a mild rainstorm. This brings us to dew shields and thermal equipment used to keep my telescope above and away from that elusive “breakpoint where temperature and vapor fail to sustain equilibrium.
Author name: Mark Estes
Oct 17 2005 07:19 AM | Lusty in How to . . .
The observation and measurement of visual double stars is an important area of study in astronomy and astrophysics. This type of observing is an area of research well suited for amateur participation. The amateur can still carry out important scientific work, and make a valuable contribution
Author name: Jeff Beish
Oct 12 2005 07:34 AM | Ed Jones in How to . . .
I noticed that if you bend a flat piece of metal (spider vane) into a large radius it can be straightened easily just by installing it into a telescope tube. However if you put a smaller radius bend in it it will require considerably more force to straighten.
Author name: Ed Jones
Oct 04 2005 07:04 AM | Guest in How to . . .
When I first started observing I spent many hours seeking ‘faint fuzzies’ and this proved to be exceptionally frustrating. Fortunately I do not give up easily and decided to find a way to enjoy the astronomy from my back garden.
Author name: Ian Coster
Oct 03 2005 07:32 PM | Ron B[ee] in How to . . .
The compilation of on-line resources by my Light Cup on things you want to know about observing the Red Planet, Mars.
Author name: Ron B[ee]
Aug 03 2005 02:30 AM | Michael Morris in How to . . .
The new seat was constructed with strips of s**** plywood glued to the underside of the seat to act both as strengtheners and as a wedge that raises the front of the seat
Author name: Michael Morris
Jul 29 2005 09:12 AM | Guest in Amateur Telescope Making (ATM)
I went with a Kineoptics HC-2 focuser, which is a very light, precision focuser with zero image shift. I do intend to use a binoviewer with this scope and I know it's going to be a bit of a hassle with a helical focuser, but the much lower weight of the HC-2 was more important
Author name: Craig Combes
Jul 28 2005 03:58 AM | sdskygazer in Amateur Telescope Making (ATM)
The prototype proved that a light-diffuser based ball telescope is feasible. But, is it scaleable to an 8 inch mirror, without the use of exotic materials? Checking with Mag-1, I notice that their 8 inch f6 uses a 16 inch ball.
Author name: Rick Steiner
Jul 26 2005 12:12 PM | Guest in Amateur Telescope Making (ATM)
The primary mirror refiguring was no different than a normal parabolic mirror, except that it had a hole in the center! The subdiameter lap that I made was made just large enough that it could be pressed
Author name: Michael Lockwood
Jul 25 2005 02:44 AM | Guest in Amateur Telescope Making (ATM)
As a girl growing up in the fifties, I'd not even been permitted to take shop, and my woodworking skills were somewhere between rudimentary and nonexistant. I still missed a 6" Dob I'd sold because it was too big, though, and I'd always wanted to make a mirror.
Author name: Martha Gay
Jul 23 2005 09:49 AM | Guest in Amateur Telescope Making (ATM)
To the normal features of a mirror cell, I have added two useful features. The first oversized collimation knobs. One of the frustrations that many astronomers face, especially in cold weather is trying to collimate optics
Author name: Jeff Hineline
Jul 22 2005 03:26 AM | Guest in Amateur Telescope Making (ATM)
Ever wonder what it takes to build a 28" dob? ... The observing shade consists of three parts - the turntable, the backstop and the shade itself. The rotating turntable is made from a ring of Dibond and is held in place by four posts that are attached to the side of the focuser board.
Author name: Howard Banich
Jul 21 2005 03:13 AM | Albert in Amateur Telescope Making (ATM)
2 dobs which use 3 parallel struts... Most composite panels can be cut with standard woodworking tools. In fact, I found them a joy to work with. For example, a 4' X 8' sheet of 1" thick Tripanel Marine weighs 20 lbs, and is easy to lift. In comparison, a solid plywood sheet 1" thick can weigh 75-100 lbs and is a challenge to drag
Author name: Albert Highe
Jul 20 2005 05:58 AM | John Jarosz in Amateur Telescope Making (ATM)
My intent was to build a scope that gets me back into the astronomy environment, is portable, high quality, and is a design that can be scaled up to a larger size when I am ready to do so. Currently I live in the Chicago metro area and dark skies are only seen
Author name: John Jarosz
Jul 19 2005 02:36 AM | Guest in Amateur Telescope Making (ATM)
I have limited tools nowadays, but it didn't seem like I would need anything very special to build something good. Well, nothing special but some cash.
Author name: Mark Bracewell
Jul 18 2005 06:25 AM | Guest in Amateur Telescope Making (ATM)
With all the time spent on the grinding phase of the mirror, the opportunity for bad things to happen was immense. Initially Murphy's Law manifested itself in the form of two small chips at the edge of the mirror. But the nastiest
Author name: Jeremy Schmit
Jul 17 2005 03:12 AM | Strix2 in Amateur Telescope Making (ATM)
The OTA was built around a spare stainless steel stove pipe (shame on us, we still use wood for warming our bones...) to which, just by serendipity, the mirror cell as well the spider fitted perfectly.
Author name: David Mart'nez