XX  International  Astronomy  Olympiad

Problems  of  the  Olympiad

Title page	Theoretical round		Practical round		Observational round
	a	b	a	b	a, b
In Russian
In English

Instructions before rounds	Theoretical round		Practical round		Observational round
	a	b	a	b	a, b
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Problems' conditions	Theoretical round		Practical round		Observational round
	a	b	a	b	Planetarium	Telescope
In Russian
In English
In other languages	W i l l    b e    p u b l i s h e d    l a t e r

Supplement data	Theoretical round		Practical round
	a	b	a	b
Tables. Solar System. Equation of Time. Coordinates
Table. Сonstants and formulae
Tables. Stars. Greek alphabet
Sky Map
Hertzsprung-Russell diagram
Picture for Problem #7

• Guideline for new participating countries

• The International Astronomy Olympiad (IAO) Web-site

• The XI Asian-Pacific Astronomy Olympiad (APAO 2015)

Dr. Michael G. Gavrilov, Founding Chairman of the International Astronomy Olympiad,
ISSP of Russ. Acad. Sci., Academician Ossipyan street 2, 142432 Chernogolovka, Moscow region, Russia.

URL: http://www.issp.ac.ru/iao/2015/
e-mail: gavrilov@issp.ac.ru
fax: + 7-(496-52)-28-160