# Observatoire Uranoscope, France: what it is and when to go > Observatoire Uranoscope is an observatory in France (Marne-la-Vallée). Interests: Stargazing. The best time to visit is November to March. In June there are 15 h 55 of daylight, and in December, 8 h 04. Here is what it is, where it lies, when to come, how to get there and what else is nearby to turn it into a trip. - Address: https://kokai.app/en/paises/europa/francia/observatoire-uranoscope/ - Reviewed on: 2026-10-02 - Language: en ## In a nutshell - **What it is:** Observatory · Stargazing - **Where:** France · Allée Camille Flammarion, 77220, Gretz-Armainvilliers - **You can go:** November to March. - **Nearest airport:** ORY Paris (Orly, Val-de-Marne), 28 km as the crow flies - **Opening hours:** Sa 21:00-23:00 - **Website:** [uranoscope.free.fr](http://uranoscope.free.fr/) - **Run by:** Association « Uranoscope de l'Ile de France » - **Coordinates:** 48.74287, 2.74223 ## What it is and where Observatoire Uranoscope is an observatory in France (Marne-la-Vallée). It is in [Marne-la-Vallée](https://kokai.app/en/paises/europa/francia/marne-la-vallee/), where this site lists 39 more places to see, 15 km from the centre. Its coordinates are 48.74287, 2.74223; the nearest main airport is Paris-Orly Airport (ORY, Paris (Orly, Val-de-Marne)), 28 km as the crow flies. How to get around France (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/europa/francia/#moverse). - [Where it is](https://www.google.com/maps/search/?api=1&query=48.742865%2C2.742232) - [Directions](https://www.google.com/maps/dir/?api=1&destination=48.742865%2C2.742232) - **Run by:** Association « Uranoscope de l'Ile de France » It is one of the [Stargazing](https://kokai.app/en/paises/europa/francia/estrellas/) places in France. In [Kokai](https://kokai.app/en/) it is already on your trip map next to the places you save yourself, and it goes into a day's plan with one tap. ## When to go Months when you can visit Observatoire Uranoscope: **November to March**. | Mes | Época | Hours of daylight | | --- | --- | --- | | January | Possible | 8 h 29 | | February | Possible | 9 h 55 | | March | Possible | 11 h 34 | | April | Better not | 13 h 27 | | May | Better not | 15 h 03 | | June | Better not | 15 h 55 | | July | Better not | 15 h 34 | | August | Better not | 14 h 10 | | September | Better not | 12 h 20 | | October | Better not | 10 h 31 | | November | Possible | 8 h 54 | | December | Possible | 8 h 04 | In June there are 15 h 55 of daylight, and in December, 8 h 04. Daylight hours are calculated from the site's latitude for the 15th of each month; when planning a full day on foot they matter as much as the weather. When to go to France in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/europa/francia/#cuando-ir). ## Before you go to France To enter France there are 6 things to sort out before you leave, starting with “Valid ID card (DNI) or passport”: they are all, with their deadlines, in [the France checklist](https://kokai.app/en/paises/europa/francia/#antes-de-salir). Currency: Euro (EUR); plugs: Type C and E · 230 V · 50 Hz; emergencies: 112 · 15 ambulance (SAMU) · 17 police · 18 fire brigade. In [Kokai](https://kokai.app/en/) you tick off the checklist inside your trip, and each item reminds you when it is time to do it. ## What is nearby - [La Brie Verte - Accès Tournan-en-Brie](https://kokai.app/en/paises/europa/francia/la-brie-verte-acces-tournan-en-brie/): Hiking · 2.4 km - [Zoo du bois d'Attilly](https://kokai.app/en/paises/europa/francia/zoo-du-bois-d-attilly/): With kids · Wildlife · 5.8 km - [Tour de la Brie Verte](https://kokai.app/en/paises/europa/francia/tour-de-la-brie-verte/): Hiking · 6.4 km - [La Brie Verte - Boucle 1 - De Notre Dame à Ferrières](https://kokai.app/en/paises/europa/francia/la-brie-verte-boucle-1-de-notre-dame-a-ferrieres/): Hiking · 6.4 km - [La Brie Verte - Accès Roissy-en-Brie](https://kokai.app/en/paises/europa/francia/la-brie-verte-acces-roissy-en-brie/): Hiking · 8.6 km Distances are as the crow flies. Everything else is in [the France guide](https://kokai.app/en/paises/europa/francia/). ## More in France: Stargazing - [Paris Observatory](https://kokai.app/en/paises/europa/francia/observatorio-de-paris/): foremost astronomical observatory of France - [University of Bordeaux](https://kokai.app/en/paises/europa/francia/observatoire-de-bordeaux/): university in France - [Observatory of Strasbourg](https://kokai.app/en/paises/europa/francia/observatoire-astronomique-de-strasbourg/): astronomical observatory in France - [List of astronomical observatories](https://kokai.app/en/paises/europa/francia/d51-plateau-astronomique-de-la-couronne-palc/): Wikimedia list article - [Pises Observatory](https://kokai.app/en/paises/europa/francia/observatoire-des-pises/): astronomical observatory in France - [Lyon Observatory](https://kokai.app/en/paises/europa/francia/observatoire-de-lyon/): school in France Every France place under Stargazing, each with its season, is on [its page](https://kokai.app/en/paises/europa/francia/estrellas/). ## Frequently asked questions ### What is Observatoire Uranoscope? It is an observatory in France. ### When is the best time to visit Observatoire Uranoscope? November to March. In June there are 15 h 55 of daylight, and in December, 8 h 04. ### How do you get to Observatoire Uranoscope? The nearest main airport is Paris-Orly Airport (ORY), 28 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=48.742865%2C2.742232) opens the route on the map, and how to get around France is explained in [its country guide](https://kokai.app/en/paises/europa/francia/#moverse). ### How do I add it to my trip? With one tap. In Kokai it is already on the France map, next to the places you save yourself: add it to a day's plan, give it a time and, if you like, get a reminder when you pass nearby. ### What else is around here? Nearby you have [La Brie Verte - Accès Tournan-en-Brie](https://kokai.app/en/paises/europa/francia/la-brie-verte-acces-tournan-en-brie/), [Zoo du bois d'Attilly](https://kokai.app/en/paises/europa/francia/zoo-du-bois-d-attilly/), [Tour de la Brie Verte](https://kokai.app/en/paises/europa/francia/tour-de-la-brie-verte/). The rest is in [the France guide](https://kokai.app/en/paises/europa/francia/). Data from [OpenStreetMap](https://www.openstreetmap.org/way/113406907), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/), CC0. Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).