# Bisei Astronomical Observatory, Japan: what it is and when to go > Bisei Astronomical Observatory is a museum (美星天文台) in Japan (Okayama). Interests: Museums and art. The best time to visit is February to May and October to November. In June there are 14 h 19 of daylight, and in December, 9 h 41. It has articles in 2 Wikipedias, so it is not one of the busiest places in Japan: one to enjoy at a calmer pace. 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/bisei-astronomical-observatory/ - Reviewed on: 2026-10-02 - Language: en ## In a nutshell - **What it is:** Museum · Museums and art - **Local name:** 美星天文台 - **Where:** Japan - **Best time:** February to May and October to November. - **Nearest airport:** KIX Osaka, 158 km as the crow flies - **Opening hours:** Fr-We 09:30-22:00 - **Website:** [bao.city.ibara.okayama.jp](https://www.bao.city.ibara.okayama.jp/) - **Coordinates:** 34.67203, 133.54539 ## What it is and where Bisei Astronomical Observatory is a museum (美星天文台) in Japan (Okayama). It has articles in 2 Wikipedias, so it is not one of the busiest places in Japan: one to enjoy at a calmer pace. It is in [Okayama](https://kokai.app/en/paises/asia/japon/okayama/), where this site lists 51 more places to see, 34 km from the centre. Its coordinates are 34.67203, 133.54539; the nearest main airport is Kansai International Airport (KIX, Osaka), 158 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=34.672032%2C133.545392) - [Directions](https://www.google.com/maps/dir/?api=1&destination=34.672032%2C133.545392) It is one of the [Museums and art](https://kokai.app/en/paises/asia/japon/museos/) 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 Bisei Astronomical Observatory is **February to May and October to November**. | Mes | Época | Hours of daylight | | --- | --- | --- | | January | Possible | 9 h 55 | | February | Best time | 10 h 45 | | March | Best time | 11 h 44 | | April | Best time | 12 h 53 | | May | Best time | 13 h 49 | | June | Possible | 14 h 19 | | July | Possible | 14 h 07 | | August | Possible | 13 h 18 | | September | Possible | 12 h 12 | | October | Best time | 11 h 06 | | November | Best time | 10 h 09 | | December | Possible | 9 h 41 | In June there are 14 h 19 of daylight, and in December, 9 h 41. 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 - [Bisei Spaceguard Center](https://kokai.app/en/paises/asia/japon/bisei-space-guard-center/): Japanese astronomical observatory · 99 m - [Kibi Kawakami Comic Museum](https://kokai.app/en/paises/asia/japon/kibikawakami-manga-museum/): Museum · 9.1 km - [Okayama Astrophysical Observatory](https://kokai.app/en/paises/asia/japon/subaru-telescope-okayama-branch-naoj-nins/): Observatory · 12 km - [Okayama Astronomical Museum](https://kokai.app/en/paises/asia/japon/okayama-astronomical-museum/): Museum in Asakuchi, Okayama, Japan · 12 km - [Kyoto University Okayama Observatory](https://kokai.app/en/paises/asia/japon/kyoto-university-okayama-observatory/): Observatory · 12 km Distances are as the crow flies. Everything else is in [the Japan guide](https://kokai.app/en/paises/asia/japon/). ## More in Japan: Museums and art - [Tokyo National Museum](https://kokai.app/en/paises/asia/japon/museo-nacional-de-tokio/): art museum in Tokyo, Japan - [Matsumoto Castle](https://kokai.app/en/paises/asia/japon/castillo-de-matsumoto/): building in Matsumoto, Nagano Prefecture, Japan - [National Museum of Western Art](https://kokai.app/en/paises/asia/japon/museo-nacional-de-arte-occidental/): art museum in Tokyo, Japan - [Hiroshima Castle](https://kokai.app/en/paises/asia/japon/castillo-de-hiroshima/): Castle - [Kōfuku-ji](https://kokai.app/en/paises/asia/japon/kofuku-ji/): Buddhist temple in Nara Prefecture, Japan - [Ushiku Daibutsu](https://kokai.app/en/paises/asia/japon/ushiku-daibutsu/): statue located in Ushiku, Ibaraki Prefecture, Japan Every Japan place under Museums and art, each with its season, is on [its page](https://kokai.app/en/paises/asia/japon/museos/). ## Frequently asked questions ### What is Bisei Astronomical Observatory? It is a museum (美星天文台 in the local language) in Japan. It has articles in 2 Wikipedias, so it is not one of the busiest places in Japan: one to enjoy at a calmer pace. ### When is the best time to visit Bisei Astronomical Observatory? February to May and October to November. In June there are 14 h 19 of daylight, and in December, 9 h 41. ### How do you get to Bisei Astronomical Observatory? The nearest main airport is Kansai International Airport (KIX), 158 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=34.672032%2C133.545392) 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 [Bisei Spaceguard Center](https://kokai.app/en/paises/asia/japon/bisei-space-guard-center/), [Kibi Kawakami Comic Museum](https://kokai.app/en/paises/asia/japon/kibikawakami-manga-museum/), [Okayama Astrophysical Observatory](https://kokai.app/en/paises/asia/japon/subaru-telescope-okayama-branch-naoj-nins/). The rest is in [the Japan guide](https://kokai.app/en/paises/asia/japon/). Data from [OpenStreetMap](https://www.openstreetmap.org/node/4937650121), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/wiki/Q11609097), CC0. More about Bisei Astronomical Observatory on [Wikipedia](https://ja.wikipedia.org/wiki/%E7%BE%8E%E6%98%9F%E5%A4%A9%E6%96%87%E5%8F%B0). Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).