XX  International  Astronomy  Olympiad

Groups  of  contestants

Number of previous participations in IAO	Y   e   a   r       o   f       b   i   r   t   h
	1996 and earlier	1997	1998	1999	2000	2001	2002 and later
Never
1
2 and more

	Participation permitted in both a and b groups
	Participation permitted in b group only
	Participation not permitted
	Impossible situation

• Teams at the Olympiad

• 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