# 星座早見 / Planisphere > Digital planisphere app for viewing and learning about the night sky. (iPhone/iPad app by IMAGE FACTORY CO., LTD..) - Source: https://appshunter.io/ios/app/planisphere/id882653086 (this page in markdown: same URL + `.md`) - Developer: [IMAGE FACTORY CO., LTD.](https://appshunter.io/developer/882653089) - Category: Education, Entertainment - Price: Free - Rating: 1.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 277 MB - Languages: English, Japanese - Released: 2024-01-11 - Data updated: 2026-06-24 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/planisphere/id882653086/reviews.md ## What is 星座早見 / Planisphere? The planetarium curators of Nagoya City Science Museum have originally designed the Planisphere app. Many people know how to use the planisphere, because we learn it at elementary school. This is the planisphere of the era of IT which added the advantage as an app, with the plain usage of the planisphere printed on paper and plastic. Please look up at the real starry sky with this Planisphere app. The Planisphere app shows the sky of the current time at the start-up. To check the sky at other time, you drag around the date scale with your fingertips to set the date and time. You can use pinch gestures to manipulate a map of the sky. It attends you to enjoy the star watching by glowing in dark place. It is the exceptional planisphere app, because it’s displayed up to the planet positions of the night that is impossible with the printed planisphere! 【Features of the Planisphere application】 ・ Anytime, anywhere: When you look up at the night sky, it stands by in your smartphone or tablet. ・ Very easy usage: The usage of planisphere is exactry same as you learned. Just touch and rotate the board. ・ Quick access : The Planisphere shows the night sky when you start the app. It is easier than a printed planisphere. ・ Prominent planets: The planets always stand out in the night sky. However, the planet positions change day by day, so it is not possible to display on the printed planisphere. The Planisphere app calculates the positions in the night of the 5 planets and the Moon that are seen by the naked eye and displays them as icons on the board. ・ Good at dark places : When we look up at the starry sky, we are of course in a dark place. We needed a torch when using a printed planisphere. But the Planisphere app can be used in the darkness because of the screen light. A tip when using the app is to reduce the screen brightness not to be dazzling. ・ Friendly to any ages: It is difficult to see small letters in a dark place. You can freely zoom in and out with the fingertips on the Planisphere app. Furthermore, it is easier to see than a printed planisphere, since the screen of smart phone or tablet have a light. ・ Sunrise and sunset : You can find the sunrise time by setting a target object to the eastern horizon and the sunset time by setting it to the western horizon on the board. On the Planisphere app, you can find the rough time and direction of sunrise or sunset, because it shows not only stars but also the planets and the Moon. ・ For education : In schools, science museums, planetariums and public astronomical observatories, there are occasions that to explain how to use a planisphere. It is small letters and hard to show to people when explaining the usage. For now, you can connect a smart phone or a tablet to a projector or a big monitor to make the planisphere image larger. There is also a more sophisticated computer version (for Windows and Macintosh) of the Planisphere app. If your school provides tablets to the students, you can use the Planisphere app instead of a printed planisphere. ・ Planetarium of Nagoya City Science Museum opened in 1962. It is the planisphere which contains a lot of curator's experience and know-how. We have made it as an application that we use printed planispheres for the citizen observation party, educational programs, astronomical exhibition room of Nagoya City Science Museum and sell at the museum shop. Bright famous stars, Moon and planets are visible even in the town. Please look up at the real starry sky with this Planisphere app. ・ Astronomical information of Nagoya City Science Museum introduces various astronomical phenomena and events. Please also click here if you would like to know more about the Planisphere app. >Astronomical information http://www.ncsm.city.nagoya.jp/study/astro/ >Planisphere http://www.ncsm.city.nagoya.jp/study/astro/hayami.html ## Key features - Real-time sky display - Planet and moon tracking - Interactive sky map - Sunrise/sunset prediction - Zoomable interface - Dark-friendly screen ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/planisphere/id882653086/reviews.md ### 1/5 — Doesn’t work in the USA *2024-12-27* Seemed to pick up my longitude (but latitude is fixed at 35) and time, but the sky is totally off. I suspect it is trying to show the sky in Japan for my US time. Could be a neat app if it truly worked outside Japan. ## Frequently asked questions about 星座早見 / Planisphere ### What is the Planisphere app? The Planisphere app is a digital tool designed to simulate the night sky. It was originally created by the planetarium curators of the Nagoya City Science Museum and offers an IT-era advantage over traditional paper planispheres. ### How do I use the Planisphere app? Using the Planisphere app is similar to a traditional planisphere. You can drag the date scale to set the date and time, and use pinch gestures to manipulate the sky map. The app displays the sky for the current time upon startup. ### Can the Planisphere app show planets? Yes, the Planisphere app can display the positions of the five planets visible to the naked eye, as well as the Moon. This is a key advantage over printed planispheres, as planet positions change daily. ### Is the Planisphere app good for use in the dark? Yes, the Planisphere app is designed to be used in dark places. Unlike a printed planisphere which requires a torch, this app uses its screen light. A tip is to reduce screen brightness to avoid being dazzling. ### Can I use the Planisphere app for educational purposes? Absolutely. The Planisphere app is friendly to all ages and can be easily projected onto a larger screen for classroom or museum explanations. It's a more accessible way to teach how to use a planisphere. ### Does the Planisphere app have ads? No, the Planisphere app does not contain advertisements. It is a completely ad-free experience for users. ### What devices does the Planisphere app support? The Planisphere app is supported on iPhone, iPad, and iPod devices. It is designed to be accessible on various Apple mobile devices. ### How often is the Planisphere app updated? The Planisphere app was last updated on May 12, 2026, with version 7.2.2. This indicates a recent update, suggesting ongoing development and maintenance. ## Version history (last 5 releases) ### 7.3.2 — 2026-06-09 Corresponds to 50 degrees north latitude. Image update. ### 7.2.2 — 2026-05-12 English version updated. ### 7.2.0 — 2026-02-24 ・UTC compatible ### 7.0.2 — 2024-10-04 Adjustment of setting screens ### 7.0.1 — 2024-08-27 Adjustment of setting screens ## Apps similar to 星座早見 / Planisphere | App | Rating | Price | Category | | --- | --- | --- | --- | | [OSR Star Finder](https://appshunter.io/ios/app/osr-star-finder/id946123330) | 4.6 (4,620) | Free | Education | | [Exoplanet](https://appshunter.io/ios/app/exoplanet/id327702034) | 4.7 (862) | Free | Education | | [Constellation Map mobile](https://appshunter.io/ios/app/constellation-map-mobile/id1435568096) | 4.7 (4,602) | Free | Education | | [Telescopius](https://appshunter.io/ios/app/telescopius/id6479415751) | 3.6 (8) | Free | Education | | [Celestron SkyPortal](https://appshunter.io/ios/app/celestron-skyportal/id877780544) | 3.6 (340) | Free | Education | | [Sky Academy: Learn Astronomy](https://appshunter.io/ios/app/sky-academy-learn-astronomy/id1571488252) | 4.9 (155) | Free | Education | ## More apps by IMAGE FACTORY CO., LTD. - [Planisphere](https://appshunter.io/ios/app/planisphere/id1457315229) All apps by IMAGE FACTORY CO., LTD.: https://appshunter.io/developer/882653089 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-24.*