IOAA 2018, Наблюдения — Задача 5. O5
12th International Olympiad on Astronomy and Astrophysics — Observational Competition and Mountain Team Competition · 10 т.
Внимание: Бележка към темата
The archive includes separate suggested KOR corrections. O4 changes the accepted constellation; O5 proposes 1.7° while the final night key prints 1.8°. Both versions and their original scoring are retained. The Mountain task has no supplied key.
Условие
Night — Instructions
This part of the competition consists of 2 problems (O5 and O6), and is worth a total of 50 points.
You have 10 minutes to complete these problems.
Stop working once the timer expires.
At the end of the examination, hand over the test envelope to the supervisor at the station.
You will use a telescope to observe five red LED screens at a distance. The telescope is equipped with one eyepiece, but no finderscope. Some of these screens display the names of planets, some show Messier numbers, and some show equatorial coordinates.
The eyepiece’s field of view is 45°. Please estimate the field of view (with an accuracy of 0.1°) of the telescope when observing.
Отговори
- 1.8°
Решение
Official night solution
10 points for 1.6° ~ 1.9°, 5 points for 1.3° ~ 1.5° and 2.0° ~ 2.2°.
Suggestion by KOR — Night-Cloudy correction
2.13°
10 points for 2.0° ~ 2.2°, 5 points for 1.6° ~ 1.9° and 2.3° ~ 2.5°.
In order to get the correct FOV, we have to use (45/2)° instead of 45°
Therefore, correct answer should be 1.7° instead of 2.13°
Suggestion by KOR — Readme
- Night (Cloudy) – O5
In order to get the correct FOV, we have to use (45/2)° not just 45°
Therefore, correct answer should be 1.7° instead of 2.13°
Оригинал в Архива: Observational Problems.pdf · официални решения: 18_obs_day_sol.pdf · допълнителни данни: 18_obs_night_sol.pdf · допълнителни данни: IOAA-Observation.zip / IOAA-Observation/Suggestion by KOR/IOAA2018 Observational Solution (Day)_correction.docx · допълнителни данни: IOAA-Observation.zip / IOAA-Observation/Suggestion by KOR/IOAA2018 Observational Solution(Night-Cloudy)_correction.docx · допълнителни данни: IOAA-Observation.zip / IOAA-Observation/Suggestion by KOR/Readme_correction.docx · допълнителни данни: 18_team.pdf