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Telescopes and Calculators

During the IOAA tests, the organization will provide standardized calculators and telescopes, ensuring equal conditions for all students. The equipment description is located below.

Calculators

The standard calculators that will be used in the tests will be the CLASSE CLA-105B model. This is a standard scientific calculator with a one line screen and all the needed functions. The manual can be found in this link:

Calculators Manual

Telescopes

The telescope that will be used in the Observational Competition are Dobsonian (Newtonian), alt-azimuth mounted, with standardized oculars and finders.

The primary mirror has focal length F=1250mm and 198mm of diameter. The secondary mirror is a plane, oblique, with 50mm of diameter.

  • Barlow lens 2x short;
  • Finderscope 6x30 without prism;
  • Ocular Plossl 30 mm 45° AFOV;
  • Ocular Plossl 10 mm 45° AFOV.

The telescopes and kits are made in Brazil, by the Azeheb ( This email address is being protected from spambots. You need JavaScript enabled to view it. optics). The product in the Azeheb store is: http://www.azeheb.com.br/produtos_interna.php?idproduto=657 (in portuguese)

 {gallery}Telescopes{/gallery}

Note: after the Olympiad, the telescopes will be sent to public schools of Vassouras region. For more informations about this, please mail to This email address is being protected from spambots. You need JavaScript enabled to view it. .