Telescope XIX IAO

Dear Participants!

On the Olympiad will be used following Telescope:

Telescope ASTROMASTER LT 70 AZ

SPECIFICATIONS:

Optical Design

Refractor

Aperture (mm)

70 mm (2.76 in)

Telescope Type

Manual

Focal Length

700 mm (28 in)

Focal Ratio

10

Focal Length of Eyepiece 1 (mm)

20 mm (0.79 in)

Magnification of Eyepiece 1

35 x

Focal Length of Eyepiece 2 (mm)

10 mm (0.39 in)

Magnification of Eyepiece 2

70 x

Finderscope

Built-on StarPointer

Mount Type

Altazimuth

Tripod

1” steel tubes

Highest Useful Magnification

165 x

Lowest Useful Magnification

10 x

Limiting Stellar Magnitude

11.7

Resolution (Rayleigh)

1.99 arc seconds

Resolution (Dawes)

1.66 arc seconds

Light Gathering Power (Compared to human eye)

100 x

Apparent Field of View

1.7 °

Linear Field of View (@1000 yds)

89 ft (27 m)

Optical Coatings

Fully-Coated

Optical Tube Length

28 in (711 mm)

Total Telescope Kit Weight

16 lbs (7.26 kg)

 

Detailed Directions for use in English you can download here

Detailed Directions for use in Russian you can download here