Côte d'Azur Observatory

{{Short description|Astronomical observatory network in southern France}}

{{more citations needed|date=October 2019}}

Image:Lunar Laser Ranging at the Observatoire de la Côte d'Azur DSC 0733 (10782569014).jpg

The Côte d'Azur Observatory ({{langx|fr|Observatoire de la Côte d'Azur}}, {{IPA|fr|ɔpsɛʁvatwaʁ də la kot dazyʁ|pron}}, OCA) is a network of astronomical observatories throughout southern France. It originated in 1988 with the merger of two observatories:

1. Nice Observatory
2. Centre de recherches en géodynamique et astrométrie (CERGA)

Cote d'Azure Observatory tested beam combining technology at CHARA array.{{Cite book|url=https://books.google.com/books?id=_8SSDQAAQBAJ&q=C%C3%B4te+d%27Azur+Observatory&pg=PT404|title=Observatories and Telescopes of Modern Times: Ground-Based Optical and Radio Astronomy Facilities since 1945|last=Leverington|first=David|date=2016-11-24|publisher=Cambridge University Press|isbn=9781316841815|language=en}}

Astronomers developed a theory about M-Type asteroids, that may be tested by the planned spacecraft Psyche.{{Cite journal|last1=Lopatka|first=Alex|date=2019-09-20|title=Glassy surface of iron-rich asteroids tricks telescopes|journal=Physics Today|url=https://physicstoday.scitation.org/do/10.1063/PT.6.1.20190920a/abs/|language=EN|doi=10.1063/PT.6.1.20190920a}}