Coronagraphs in the World
| Observatory | Country | Altitude | Aperture | Construction | Pic du Midi | France | 2860 m | 20 cm, 15 cm | 1930 |
|---|---|---|---|---|
| Arosa | Switzerland | 2050 m | 20 cm, 12 cm | 1938 |
| Climax | U.S. | 3394 m | 40 cm, 13 cm | 1940, closed 1972 |
| Wendelstein | Germany | 1840 m | 20 cm | 1941 |
| Kanzelhöhe | Austria | 1526 m | 11 cm | 1943 |
| Norikura | Japan | 2876 m | 25 cm, 10 cm X 2 | 1949 |
| Sacramento Peak | U.S. | 2840 m | 40 cm, 20 cm | 1951 |
| Kislovodsk | Russia | 2050 m | 53 cm, 20 cm | 1957 |
| Alma Ata | Kazachstan | 3000 m | 53 cm, 20 cm | 1958 |
| Lomnicky Stit | Slovakia | 2634 m | 20 cm X 2 | 1964 |
| Mauna Loa | U.S. | 3400 m | 24 cm K-coronameter | 1965 |
| Haleakala | U.S. | 3050 m | 25 cm, 10 cm | 1967 |
| Ulan Bator | Mongolia | 2600 m | 20 cm | 1970 |
