Websites - Equipment

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Websites - Telescope History

Websites - Astronomy Education

Websites - Equipment

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1. Celstron's homepage http://www.celestron.com/ Commercial supplier of telescopes, binoculars, and accessories.

2. Orion Telescopes & Binoculars http://www.telescope.com/ Commercial supplier of telescopes, binoculars, and accessories.

3. Edmund Scientific http://www.edmundscientific.com/ Commercial supplier of general science supplies.

http://www.edmundscientific.com/Products/DisplayProduct.cfm?productid=1240 Assorted double convex lenses: 31.75 mm, 38 mm, 50 mm, and 75 mm diameters, focal lengths of 50 mm, 75 mm, 100 mm, 150 mm, 200 mm, 250 mm, and 300 mm $2.95 each.

http://www.edmundscientific.com/Products/DisplayProduct.cfm?productid=1212 Assorted plano-convex lenses: 50 mm and 75 mm diameters, focal lengths of 100 mm, 150 mm, 200 mm, 250 mm, and 400 mm $3.95 each.

http://www.edmundscientific.com/Products/DisplayProduct.cfm?productid=1194 Assorted double concave lenses: 31.75 mm, 38 mm, 50 mm, and 75 mm diameters, focal lengths of -75 mm, -100 mm, -150 mm, and -200 mm $3.95 each.

http://www.edmundscientific.com/Products/DisplayProduct.cfm?productid=1217 Assorted plano-concave lenses: 50 mm diameter, focal lengths of -100 mm and -125 mm $6.95 each.

http://www.edmundscientific.com/Products/DisplayProduct.cfm?productid=2389 12" diameter parabolic mirror $29.95.

http://www.edmundscientific.com/Products/DisplayProduct.cfm?productid=1249 Assorted flat mirrors: 31.75 mm, 38 mm, and 50 mm $2.95 to $3.95.

http://www.edmundscientific.com/Products/DisplayProduct.cfm?productid=1176 Right angle prisms: 50mm/35mm/25mm - $9.95, 25mm/35mm/25mm - $6.95.

http://www.edmundscientific.com/Products/DisplayProduct.cfm?productid=587 Digital thermometer/clock - reads to the nearest 0.1 degree Fahrenheit $19.95.

http://www.edmundscientific.com/Products/DisplayProduct.cfm?productid=1875 Optics Science Kit: Beginners kit includes optical bench with 7 clips, a prism, concave lens, 2 convex lenses, 7 filters (color and polarizing), 2 mirrors, a penlight and holder, and a fiber optic strand $19.95.