IOAA 2017, Наблюдения, дневен тур — Задача 3. Analemma on another planet

Observational Examination (Day)

Указания
  1. Do not open the exam envelop yourself.
  2. This part of the exam consists of 7* problems located in separate exam stations.
  3. You have 5 minutes to complete each problem.
  4. After “out of time” is signaled, stop all actions and remain at the same station.
  5. After “next station” is signaled, proceed to the next exam station and hand the exam envelope to the station’s proctor.
  6. Use only blue pen to mark into the answer sheets provided. Any answers written in the answer sheet at the end of timer is considered final and will be graded towards the final score.

* Number of problems will be reduced to 5 if night observation was successful

Условие

Instruction: Find the Obliquity (Axial Tilt) of the planet

Included:

  • A generated analemma (position of a Star taken from the surface of a planet with interval separated by mean solar day of the planet over an orbital period around a Star) of a fictitious planet orbiting around a Star.
  • Result is graphed on a paper with each major grid representing 5°

The obliquity of the planet :

Graph paper grid titled “Analemma on Planet X” with the label NORTH above the grid and scale markers of 5° horizontally and 5° vertically at the top right; a blue closed curve forms a tilted, lopsided figure-eight-like analemma, wide at the upper right and narrowing to a point at the lower left.
Analemma on Planet X

Решение

Внимание: Непълно решение

В архива няма официално решение на тази задача.

Оригинал в Архива: Observation_Day.pdf