XXIV  International  Astronomy  Olympiad

Groups  of  contestants

Number of previous participations in IAO	Y   e   a   r       o   f       b   i   r   t   h
	2000 and earlier	2001	2002	2003	2004	2005	2006 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 XV Asian-Pacific Astronomy Olympiad (APAO 2019)

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/2019/
e-mail: gavrilov@issp.ac.ru
fax: + 7-(496-52)-28-160