1.
Astronomy Boy: Barn Door Tracker
How to Build a Double-Arm Barn Door Tracker – Steve Gagnon's page provided the dimensions I ... calculation of dimensions, and sources of tracking error. ...
2.
Astronomy Boy: Barn Door Tracker
A barn door is a specialized type of equatorial mount. The mount shown here employs a Type 4 double arm design. The double arm design was first described in ...
3.
Astronomy Boy: Getting Started: Web Sites
There are three important rules for buying a telescope. 1. Learn the sky before you buy. 2. Know what to look for in a telescope. 3. Purchase from a ...
4.
Astronomy Boy: Getting Started: Web Sites
This is not to say that you'll never find a good telescope in a discount store or on a TV shopping channel or online auction. Good telescopes are ...
5.
Further Modifications of the GP-5 mount and drive
Direct connection to car battery (12V) or 12V wall transformer (unregulated) is usually adequate. To complement the power supply box I have made a car ...
6.
Astronomy Boy: Homemade Eyepieces
From Paul Rini Optics, I purchased two eyepiece lens sets and some 1.25" aluminum tubing. ... I tested them in my C5 5" SCT with a f/.63 focal reducer. ...
7.
Astronomy Boy: CG-5 Mount Improvements
The CG-5 is a popular medium-duty equatorial telescope mount available from several manufacturers. Actually, "CG-5" is Celestron International's name for ...
8.
Astronomy Boy: Getting Started: Web Sites
The best place to buy a telescope for star gazing is from a dealer who specializes in astronomy. Not only will you get a better value, but you'll establish ...
9.
Astronomy Boy: Constellation Portraits: Sagitta and Vulpecula
Nevertheless, The Coathanger is a fine object in binoculars or a wide field telescope. Sagitta is a constellation that actually looks like its namesake. ...
10.
Astronomy Boy: Barn Door Tracker
I've used the barn door camera mount shown here for wide-field astrophotos of up to 15 minutes duration with a 35mm SLR camera and a "normal" 50mm lens. ...
