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Observatoire de l'Ardeche

France · Europe
✦ 44.6770, 4.7250

Satellite imagery: Esri, Maxar, Earthstar Geographics

About this observatory

In the village of Mars in the Ardèche, southern France, the Observatoire de l'Ardèche - also known as Planète Mars-Observatoire Hubert Reeves - has turned a small commune's name into a fitting home for stargazers. Run with the local Mars Astronomy Club, it is one of the region's most active public observatories.

About Observatoire de l'Ardèche

The observatory is part of the CCSTI network (Centre de Culture Scientifique, Technique et Industrielle), which supports science outreach across France. Alongside the Mars Astronomy Club, it runs a full programme of public observation evenings, star festivals, school visits, and astronomy courses aimed at bringing the night sky to a wide audience.

Telescopes & research

Observation sessions here are built around an RC600 telescope, used for both astrophotography and stellar studies. The site has been recognised as one of only eleven exceptional astronomical locations in France protected for the preservation of its dark night sky, which makes fine detail in deep-sky objects far easier to pick out than at a typical urban site.

Location & getting there

Observatoire de l'Ardèche sits at roughly 1,080 metres above sea level in the hills of the Ardèche department, in southern France's Auvergne-Rhône-Alpes region. The elevation and protected dark-sky status combine to give clear, steady views over the surrounding countryside.

Visiting Observatoire de l'Ardèche

The observatory welcomes the public for evening observation sessions, seasonal star festivals, and organised school visits, plus astronomy courses for beginners and enthusiasts. Programmes vary through the year, so checking ahead before a visit is recommended.

See your named star from here

Every star named through Star Register comes with precise coordinates, and staff at a well-equipped site like this can point a telescope at those coordinates on a clear night. Browse the catalogue to see how a named star's position is recorded, then plan an evening under the Ardèche's protected dark skies.

Opening hours

Opening hours and public-visit programs vary by season. Check Google Maps for current times before you travel.

Frequently asked questions
In the commune of Mars, in the Ardèche department of southern France, at around 1,080 metres elevation.
Yes, it holds public observation evenings, star festivals, school visits, and astronomy courses; check the schedule before travelling.
Observation sessions are centred on an RC600 telescope used for stellar studies and astrophotography.
It is recognised as one of only eleven exceptional astronomical sites in France protected for night-sky preservation.
Location
Nearby observatories
Observatoire de l'Ardèche: Stargazing in Mars, France | Star-Register.eu