IOAA 2013, Наблюдения, нощен тур — Задача 2

7th International Olympiad on Astronomy & Astrophysics, 27 July – 5 August 2013, Volos Greece — Observational test · 27 юли 2013 г.

Указания

When you arrive at the telescope, you will be provided with suitable equipment and shown how to use it. You will also be given the answer form. Fill in your student code number before starting the questions.

Условие

Star chart of the region around Sagitta with neighbouring constellations Cygnus, Lyra, Vulpecula, Delphinus, Aquila, Peg and Equ; constellation lines in green, boundaries dashed in yellow; marked objects M27, M71, M56, M57, M29, NGC 6992, NGC 6960 and stars labelled α, β, γ, ε, ζ.
The field in the vicinity of the Dumbell Nebula

Without using the setting circles of the telescope, complete the following tasks:

(a) bring the bright star (m = 3.51 mag) γ Sagitta (RA = 19h 58m 45.39s19^{\mathrm{h}}\,58^{\mathrm{m}}\,45.39^{\mathrm{s}}, Dec = +19° 29′ 31.5″) to the centre of view of the telescope. Ask the attendant to verify the observation. [3 т.]

(b) bring the famous Dumbell Nebula, M27 (RA = 19h 59m 36.34s19^{\mathrm{h}}\,59^{\mathrm{m}}\,36.34^{\mathrm{s}}, +22° 43′ 16.09″) to the center of the field of view. Ask the attendant to verify the observation. [5 т.]

Решение

Оригинал в Архива: Observational_night.doc