Links

 

Bulgarian Astronomical Web Sites

Institute of Astronomy, Bulgarian Academy of Sciences http://astro.bas.bg/
Department of Astronomy, Sofia University http://astro.uni-sofia.bg/
National Astronomy Olympiad http://astro-olymp.org/
National Program Hunters for Sky Treasures http://www.geocities.com/astronomiabg/
Astronomical Observatories and Planetariums in Bulgaria http://observatories.hit.bg/
Astronomical clubHelios“ – Haskovo, Bulgaria http://heliosclub.hit.bg/

Other Astronomical Web Sites

International Astronomy Olympiad http://www.issp.ac.ru/iao/
European Southern Observatory (ESO) http://eso.org/
European Association for Astronomical Education (EAAE) http://www.eaae-astro.org/
European Program Catch a Star http://eso.org/outreach/eduoff/edu-prog/catchastar/
European Program Venus Transit 2004 http://www.vt-2004.org/

Hubble

Exoplanets
Exoplanet radius versus distance from star Artist's impression of gas streaming from GJ 3470b Exomoon orbiting its planet (artist’s impression) Artist’s impression of WASP-107b Huge system of dusty material enveloping the young star HR 4796A Wasp-39b and its parent star (artist’s impression) Comprehensive Spectrum of WASP-39b The habitable zone in the TRAPPIST-1 system Spectra of planets in TRAPPIST-1 system