# Abuyama Observatory, Japan: what it is and when to go > Abuyama Observatory is an observatory (阿武山地震観測所) in Japan (Osaka). Interests: Stargazing. The best time to visit is February. In June there are 14 h 20 of daylight, and in December, 9 h 40. 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/asia/japon/abuyama-observatory/ - Reviewed on: 2026-10-02 - Language: en ## In a nutshell - **What it is:** Observatory · Stargazing - **Local name:** 阿武山地震観測所 - **Where:** Japan - **Best time:** February. - **Nearest airport:** KIX Osaka, 57 km as the crow flies - **Website:** [www1.rcep.dpri.kyoto-u.ac.jp](https://www1.rcep.dpri.kyoto-u.ac.jp/observatories/ABU.html) - **Run by:** 京都大学防災研究所 - **Coordinates:** 34.86239, 135.57009 ## What it is and where Abuyama Observatory is an observatory (阿武山地震観測所) in Japan (Osaka). It is in [Osaka](https://kokai.app/en/paises/asia/japon/osaka/), where this site lists 187 more places to see, 16 km from the centre. Its coordinates are 34.86239, 135.57009; the nearest main airport is Kansai International Airport (KIX, Osaka), 57 km as the crow flies. How to get around Japan (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/asia/japon/#moverse). - [Where it is](https://www.google.com/maps/search/?api=1&query=34.862394%2C135.570091) - [Directions](https://www.google.com/maps/dir/?api=1&destination=34.862394%2C135.570091) - **Run by:** 京都大学防災研究所 It is one of the [Stargazing](https://kokai.app/en/paises/asia/japon/estrellas/) places in Japan. 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 The best time to visit Abuyama Observatory is **February**. | Mes | Época | Hours of daylight | | --- | --- | --- | | January | Possible | 9 h 54 | | February | Best time | 10 h 44 | | March | Possible | 11 h 44 | | April | Better not | 12 h 53 | | May | Better not | 13 h 50 | | June | Better not | 14 h 20 | | July | Better not | 14 h 07 | | August | Better not | 13 h 19 | | September | Better not | 12 h 12 | | October | Better not | 11 h 06 | | November | Possible | 10 h 08 | | December | Possible | 9 h 40 | In June there are 14 h 20 of daylight, and in December, 9 h 40. 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 Japan in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/asia/japon/#cuando-ir). ## Before you go to Japan To enter Japan there are 10 things to sort out before you leave, starting with “A valid passport covering your whole stay”: they are all, with their deadlines, in [the Japan checklist](https://kokai.app/en/paises/asia/japon/#antes-de-salir). Currency: Japanese yen (JPY); plugs: Type A and B · 100 V · 50/60 Hz (you need an adapter); emergencies: 110 police · 119 ambulance and fire. 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 - [Mount Abu](https://kokai.app/en/paises/asia/japon/mt-abu/): Mountain in Ibaraki and Takatsuki, Ōsaka prefecture, Japan · 720 m - [Sōji-ji](https://kokai.app/en/paises/asia/japon/soji-ji/): Buddhist temple in Ibaraki, Osaka prefecture, Japan · 3.8 km - [Church of the Light](https://kokai.app/en/paises/asia/japon/nihon-christ-kyodan-ibarakikasugaoka-church/): Chapel in Ibaraki, Osaka Prefecture designed by Tadao Ando · 5.7 km - [National Museum of Ethnology](https://kokai.app/en/paises/asia/japon/national-museum-of-ethnology/): Museum and research institute in Japan · 6.6 km - [Mount Ishidōgaoka](https://kokai.app/en/paises/asia/japon/mt-ishidogaoka/): Mountain in Ibaraki and Toyono, Ōsaka prefecture, Japan · 6.9 km Distances are as the crow flies. Everything else is in [the Japan guide](https://kokai.app/en/paises/asia/japon/). ## More in Japan: Stargazing - [Gekko Observatory](https://kokai.app/en/paises/asia/japon/gekkou-astronomical-observatory/): Observatory - [Bisei Spaceguard Center](https://kokai.app/en/paises/asia/japon/bisei-space-guard-center/): Japanese astronomical observatory - [TAMA 300](https://kokai.app/en/paises/asia/japon/tama-300/): gravitational wave detector - [Kwasan Observatory](https://kokai.app/en/paises/asia/japon/kyoto-university-kwasan-observatory/): astronomical observatory in Japan - [Ishigakijima Astronomical Observatory](https://kokai.app/en/paises/asia/japon/ishigakijima-astronomical-observatory/): Observatory - [Okayama Astrophysical Observatory](https://kokai.app/en/paises/asia/japon/subaru-telescope-okayama-branch-naoj-nins/): Observatory Every Japan place under Stargazing, each with its season, is on [its page](https://kokai.app/en/paises/asia/japon/estrellas/). ## Frequently asked questions ### What is Abuyama Observatory? It is an observatory (阿武山地震観測所 in the local language) in Japan. ### When is the best time to visit Abuyama Observatory? February. In June there are 14 h 20 of daylight, and in December, 9 h 40. ### How do you get to Abuyama Observatory? The nearest main airport is Kansai International Airport (KIX), 57 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=34.862394%2C135.570091) opens the route on the map, and how to get around Japan is explained in [its country guide](https://kokai.app/en/paises/asia/japon/#moverse). ### How do I add it to my trip? With one tap. In Kokai it is already on the Japan 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 [Mount Abu](https://kokai.app/en/paises/asia/japon/mt-abu/), [Sōji-ji](https://kokai.app/en/paises/asia/japon/soji-ji/), [Church of the Light](https://kokai.app/en/paises/asia/japon/nihon-christ-kyodan-ibarakikasugaoka-church/). The rest is in [the Japan guide](https://kokai.app/en/paises/asia/japon/). Data from [OpenStreetMap](https://www.openstreetmap.org/node/11549128197), 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).