© Brooke Clarke 2009
(Model # 21024) - This is a 3" (300 mm FL , F/4) reflector for
$50. It uses the Newtonian all mirror optical system and a
Dobsonian like mount. Has rack and pinion focusing.
An advantage of the Newtonina is that all wavelengths of light are
focused at the same plane (including near IR) which is impossible
scope with a lens in the optical path. The down side to the
Newtonian is that it needs to be collimated often. Uses
1 1/4" eyepices and comes with two eyepices (20 mm - 15X & 4
The light gathering depends on the unobstructed primary
area. The mirror area is 7 sq in, but they don't say what
secondary mirror diameter is, assuming it's 1" then the
area would be 6.3 sq in. In comparison the Galileoscope (2'
Refractor) has an area of PI, i.e. 3.14 sq in. So the
has twice the light gathering power.
The optional $20 accessory kit includes:
- 12.5 mm eyepiece (24X)
- 6 mm eyepiece (50X)
- Moon Filter
- 5x25 finder scope
- CD-ROM (The SkyX)
- Nylon Carrying Case
This is what I call an orientation
sensor that's combined with a micro controller and a data base
heavenly objects. It can tell you what you're
looking at or
direct you to something you want to see.
My page for the SkyScout
The Celestron SkyScout
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[an error occurred while processing this directive] page created 27 July