2019年IOAA天文馆观测第1题

英文题目

PROBLEM 1

This is the sky above Keszthely at midnight. The projected sky does not show any Solar System objects.

QUESTIONS / TASKS:

1.1. There are 3 novae on the projected sky at 2nd magnitude. Mark their positions by circles on the star chart. (Please circle only 3 stars. If there are more than 3 circles, then each one in a wrong location will result in 1 point deduction.)

1.2. The Messier objects have been removed from the star chart given you. Mark all the Messier list globular clusters present in the projected sky on the star chart using crosses (X) and write the Messier number of each object near the cross marks.

1.3. The projected sky corresponds to the second half of which month (at midnight CEST) in Keszthely? Circle the correct month. JAN / FEB / MAR / APR / MAY / JUN / JUL / AUG / SEP / OCT / NOV / DEC

1.4. What is the local sidereal time? (To an accuracy of 15 minutes.)

1.5. List six zodiacal constellations, which are partly or entirely visible. (Use the official IAU abbreviations or IAU designation. Every constellation named which is not visible in the projected sky will result in 1 point deduction.)

中文题目

问题1

这是某天午夜凯斯特海伊（本届ioaa比赛地--小编注）上空的夜空。投射的天空不显示任何太阳系天体。

问题/任务：

1.1。在天空上有3个亮度为二等的新星。在星图上用圆圈标记他们的位置。 （请圈出3颗星。如果有超过3个圆圈，那么每个错误位置都会倒扣一分。）

1.2。 梅西耶天体已从星图中删除。使用十字（X）标记星图上投影天空中存在的所有梅西耶天体的球状星团，并在十字标记附近写下每个天体的梅西耶编号。

1.3。模拟的天空对应于凯斯特海伊某个月的下半月的午夜（东欧夏令时）？请圈出正确的月份。

JAN / FEB / MAR / APR / MAY / JUN / JUL / AUG / SEP / OCT / NOV / DEC

1.4。当地的恒星时间多少？ （精确到15分钟）

1.5。列出六个部分或全部可见的黄道星座。 （使用官方IAU缩写或IAU名称。在投影天空中看不到的每个星座将倒扣一分。）