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Харадзе, Е.К. and Kharadze, E.K. and Вашакидзе, М.А. and Vashakidze, M.A. (1938) Исследование сферической аберрации и астигматизма 8" объекривов камер 16" рефрактора Абастуманской Обсерватории / An Investigation of Spherical Aberration and Astigmatism of 8" Object Lenses of Cameras of 16" Refractor of the Abastumani Observatory. აბასთუმნის ასტროფიზიკური ობსერვატორიის ბიულეტენი / Bulletin of the Abastumani Astrophysical Observatory (2). pp. 131-145.
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Abstract
The spherical aberration and astigmatism of the object glasses of two parallel cameras attached to the new 16-inch refractor of Abastumani Observatory have been examined. The diameter of the object glasses is equal to 8 inches, thc focal length- - 1 m. The complex object glasses, made by Zeiss, are composed of four lenses each. The size of plates is 18X24, the field is 10°.5X14°.0. The examination was carried out according to Hartmann's method. The obtained curves of spherical aberration for both object glasses arc h presented on Fig. 2 and Fig. 3. The values of technical constant for the two object glasses equals 1.03 and 0.31, respectively. According to Hartmann's classification the object glass No. 1 belongs to the class designated as «good» (“gute”), the No. 2-to that characterized as «excellent» (“hervorragend gute”). The value of the astigmatism (a) is small for both object glasses (Table IX and Table X). January, 1938
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Institutes > Evgeny Kharadze Abastumani National Astrophysical Observatory |
| Depositing User: | თამარ ჭაღიაშვილი |
| Date Deposited: | 21 May 2018 10:27 |
| Last Modified: | 02 Jun 2018 18:42 |
| URI: | http://eprints.iliauni.edu.ge/id/eprint/7995 |
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