In collaboration with the
International Astronomical Union

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IAU - Outstanding Astronomical Heritage

The International Astronomical Union (IAU) is compiling its own list of astronomical heritage sites that are outstanding in the history of astronomy but do not necessarily demonstrate potential Outstanding Universal Value which would be needed for inscription on the World Heritage List. For example, the period from the European Renaissance to the middle of the 20th century was an extremely rich one for the history of astronomy, with many observatories from this period playing a significant role because of the cutting-edge scientific research carried out there. However, the actual building may be damaged or destroyed and the original instruments may no longer exist in situ or at all.

For the moment, the IAU´s Outstanding Astronomical Heritage (OAH) list is focusing on such ‘classical observatories’. It includes, for example, Tycho Brahe’s observatory at Uraniborg, which is completely destroyed although a few of the instruments have been preserved or reconstructed. The OAH list was launched at the IAU’s 2018 General Assembly in Vienna and is steadily being extended—there are currently more than 70 OAH sites on the portal. You can view OAH sites on their own or alongside our other case studies by choosing the relevant filter options in the Heritage Finder.

IAU members who are interested in proposing new sites to the OAH list are invited to contact Gudrun Wolfschmidt, Past President of IAU Commission C4 (World Heritage and Astronomy), in the first instance. The OAH List is not open to members of the public, but we invite anyone who is interested to submit one or more Places connected to the Sky on this Portal.

IAU - Outstanding Astronomical Heritage - the List
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Category of Astronomical Heritage :   tangible immovable
Hamburger Sternwarte, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 92 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Seeberg Observatory, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 97 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Seeberg Observatory, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 97 , serial ID: 2

Category of Astronomical Heritage :   tangible immovable
New Gotha Observatory, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 97 , serial ID: 3

Category of Astronomical Heritage :   tangible immovable
Kremsmünster Observatory, Austria - IAU - Outstanding Astronomical Heritage
Casestudy ID: 98 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Nuremberg castle observatory, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 99 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Uraniborg and Stellaeburgum, Sweden - IAU - Outstanding Astronomical Heritage
Casestudy ID: 100 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Hevelius observatory, Danzig, Poland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 101 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Königsberg Observatory, Russia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 102 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Lilienthal Observatory, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 104 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Uppsala Astronomical Observatory, Sweden - IAU - Outstanding Astronomical Heritage
Casestudy ID: 106 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Vilnius observatory, Lithuania - IAU - Outstanding Astronomical Heritage
Casestudy ID: 108 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Tartu Observatory, Estonia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 109 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Hurbanovo Observatory, Slovakia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 110 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Konkoly Observatory, Hungary - IAU - Outstanding Astronomical Heritage
Casestudy ID: 111 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Astronomical Tower in Clementinum Prague, Czech Republic - IAU - Outstanding Astronomical Heritage
Casestudy ID: 112 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Quito Observatory, Ecuador - IAU - Outstanding Astronomical Heritage
Casestudy ID: 113 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Bonn Observatory, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 114 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Kazan Observatory, Russia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 115 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Vassar College Observatory, Poughkeepsie, USA - IAU - Outstanding Astronomical Heritage
Casestudy ID: 117 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
La Plata Astronomical Observatory, Argentina - IAU - Outstanding Astronomical Heritage
Casestudy ID: 122 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Madras Observatory, India - IAU - Outstanding Astronomical Heritage
Casestudy ID: 124 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Bosscha Observatory, Indonesia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 125 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Sydney Observatory, Australia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 126 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Helwan Khedivial Observatory, Egypt - IAU - Outstanding Astronomical Heritage
Casestudy ID: 127 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Kodaikanal Solar Observatory, India - IAU - Outstanding Astronomical Heritage
Casestudy ID: 129 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Hamburg Observatory Millerntor, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 136 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Altona Observatory, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 137 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Rundetårn, Copenhagen, Denmark - IAU - Outstanding Astronomical Heritage
Casestudy ID: 138 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Ole Rømer Observatory, Denmark - IAU - Outstanding Astronomical Heritage
Casestudy ID: 139 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Historical Observatory, Göttingen, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 140 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Landessternwarte Heidelberg, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 141 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
University Observatory, Munich, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 142 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Remeis Observatory, Bamberg, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 143 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Bothkamp Observatory, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 146 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Jesuit Observatory Vienna, Austria - IAU - Outstanding Astronomical Heritage
Casestudy ID: 147 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
University Observatory Vienna-Währing, Austria - IAU - Outstanding Astronomical Heritage
Casestudy ID: 148 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
ETH Observatory, Zuerich, Switzerland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 149 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Cape Observatory, SAAO, South Africa - IAU - Outstanding Astronomical Heritage
Casestudy ID: 157 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Engelhardt Astronomical Observatory, Kazan, Tatarstan, Russia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 158 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Belgrade, Serbia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 159 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
National Observatory of Athens, Greece - IAU - Outstanding Astronomical Heritage
Casestudy ID: 160 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Armagh Observatory, Armagh, Northern Ireland, UK - IAU - Outstanding Astronomical Heritage
Casestudy ID: 161 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Byurakan Astrophysical Observatory (BAO), Armenia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 162 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Purple Mountain Observatory, Nanjing, China - IAU - Outstanding Astronomical Heritage
Casestudy ID: 163 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Fabra Observatory, Barcelona, Spain - IAU - Outstanding Astronomical Heritage
Casestudy ID: 164 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Real Instituto y Observatorio de la Armada de San Fernando, Cádiz, Spain - IAU - Outstanding Astronomical Heritage
Casestudy ID: 165 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Real Observatorio Astronómico de Madrid, Spain - IAU - Outstanding Astronomical Heritage
Casestudy ID: 166 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Perth Observatory, Australia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 167 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Melbourne Observatory, Australia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 168 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Lviv Observatory, Lviv (Lemberg), Ukraine - IAU - Outstanding Astronomical Heritage
Casestudy ID: 169 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Kiev (Kyiv) Observatory, Ukraine - IAU - Outstanding Astronomical Heritage
Casestudy ID: 170 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Kharkov Observatory, Ukraine - IAU - Outstanding Astronomical Heritage
Casestudy ID: 171 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Mykolaiv (Nikolaev) Observatory, Ukraine - IAU - Outstanding Astronomical Heritage
Casestudy ID: 172 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Odessa Observatory, Ukraine - IAU - Outstanding Astronomical Heritage
Casestudy ID: 173 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Simeiz Observatory, Republic of Crimea - IAU - Outstanding Astronomical Heritage
Casestudy ID: 174 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Breslau Observatory, Wrocław, Poland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 175 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Mathematical Tower, University of Breslau / Wrocław, Poland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 176 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Santa Fé de Bogotá, National Observatory of Colombia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 177 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Sternberg Astronomical Institute, Moscow, Russia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 178 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Abastumani Observatory, Georgia - IAU - Outstanding Astronomical Heritage
Casestudy ID: 179 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Cracow Observatory, Poland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 180 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Warsaw Observatory, Poland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 181 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Poznan Observatory, Poland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 182 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Torun-Piwnice Observatory, Poland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 183 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Taqi ad-Din Observatory, Constantinople (Istanbul), Turkey - IAU - Outstanding Astronomical Heritage
Casestudy ID: 184 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Imperial Observatory - Kandilli Observatory, Istanbul, Turkey - IAU - Outstanding Astronomical Heritage
Casestudy ID: 185 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Istanbul University Observatory, Turkey - IAU - Outstanding Astronomical Heritage
Casestudy ID: 186 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Convento de Belén Observatory, Havana, Cuba - IAU - Outstanding Astronomical Heritage
Casestudy ID: 188 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Observatoire de Algiers-Bouzareah, Algeria - IAU - Outstanding Astronomical Heritage
Casestudy ID: 191 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Observatorio Astronómico de Montevideo, Uruguay - IAU - Outstanding Astronomical Heritage
Casestudy ID: 192 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Wise Observatory of Tel Aviv University, Mitzpeh Ramon, Israel - IAU - Outstanding Astronomical Heritage
Casestudy ID: 193 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Dunsink Observatory, Dublin, Ireland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 194 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
King's Observatory, Kew, Richmond, UK - IAU - Outstanding Astronomical Heritage
Casestudy ID: 195 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Mannheim Observatory, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 197 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Lord Rosse's Leviathan of Parsonstown, Birr Castle, Irland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 198 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Edinburgh City Observatory, UK - IAU - Outstanding Astronomical Heritage
Casestudy ID: 199 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Royal Observatory Edinburgh, UK - IAU - Outstanding Astronomical Heritage
Casestudy ID: 200 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Christiania Observatory, Oslo, Norway - IAU - Outstanding Astronomical Heritage
Casestudy ID: 201 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Vartiovuori Observatory, Åbo/Turku, Finland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 202 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Ondřejov Observatory, Czech Republic - IAU - Outstanding Astronomical Heritage
Casestudy ID: 205 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Neubaukirche Observatory, Würzburg, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 206 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Astronomical Observatory Castillo de Chapultepec, Mexico - IAU - Outstanding Astronomical Heritage
Casestudy ID: 208 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Stockholm Observatory (until 1931), Sweden - IAU - Outstanding Astronomical Heritage
Casestudy ID: 209 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Barnard Observatory, University of Mississippi, Oxford, MS, USA - IAU - Outstanding Astronomical Heritage
Casestudy ID: 210 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Observatoire cantonal de Neuchâtel, Switzerland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 211 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Observatoire de Genève, Geneva, Switzerland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 212 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
La Specola, Bologna Observatory, Italy - IAU - Outstanding Astronomical Heritage
Casestudy ID: 213 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Osservatorio Astronomico di Brera, Milano, Italy - IAU - Outstanding Astronomical Heritage
Casestudy ID: 215 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Bucharest Observatory, Bucuresti, Romania - IAU - Outstanding Astronomical Heritage
Casestudy ID: 216 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Langat Singh College Observatory in Muzaffarpur, Bihar, India - IAU - Outstanding Astronomical Heritage
Casestudy ID: 217 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Marinoni Observatory, Mölkerbastei, Vienna, Austria - IAU - Outstanding Astronomical Heritage
Casestudy ID: 220 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Crawford Observatory, University College Cork, Ireland - IAU - Outstanding Astronomical Heritage
Casestudy ID: 222 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Coimbra Observatory, Portugal - IAU - Outstanding Astronomical Heritage
Casestudy ID: 223 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Lohrmann-Observatory, Dresden, Germany - IAU - Outstanding Astronomical Heritage
Casestudy ID: 230 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Old University Observatory Vienna (before 1879), now Academy of Sciences), Austria - IAU - Outstanding Astronomical Heritage
Casestudy ID: 232 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Kuffner Observatory, Vienna-Ottakring, Austria - IAU - Outstanding Astronomical Heritage
Casestudy ID: 233 , serial ID: 1

Category of Astronomical Heritage :   tangible immovable
Boyden Observatory, Bloemfontein, South Africa - IAU - Outstanding Astronomical Heritage
Casestudy ID: 234 , serial ID: 1