# Star Charts by Wil Tirion > Detailed celestial charts for serious amateur astronomers. (iPhone/iPad app by Astrovisuals.) - Source: https://appshunter.io/ios/app/star-charts-by-wil-tirion/id411822062 (this page in markdown: same URL + `.md`) - Developer: [Astrovisuals](https://appshunter.io/developer/411816392) - Category: Reference, Education - Price: $3.99 - Rating: 4.00/5 from 5 App Store ratings · 27 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 47 MB - Languages: American English - Released: 2011-01-13 - Data updated: 2026-09-07 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/star-charts-by-wil-tirion/id411822062/reviews.md ## What is Star Charts by Wil Tirion? These are serious Star Charts! Not a planetarium-type app suitable for beginners, but rather a very detailed series of charts of the night sky for observers using binoculars or a telescope. Prepared by famous celestial cartographer Wil Tirion, they present the entire sky in the form of 18 charts, 16 covering the equatorial region of the sky (8 each side of the celestial equator) and one for each of the Polar Regions. Features include: * Stars down to sixth magnitude; double and variable stars included. * All Messier objects, plus many NGC and IC catalogue objects. * Auto detection of your location and presentation of the chart containing the sky directly overhead. * Choice of positive charts (white on black, recommended to preserve night vision) or negative (black on white – easier to read and better for daytime use.) * Charts can shown north up or south up to match your location. * Search charts by constellation or major star name. Basic default maps show constellation names, constellation lines and major star names only. Extra layers can be added to reveal: * Constellations boundaries for all 88 constellations. * Grid lines and co-ordinates for every hour of Right Ascension and 10º of Declination. * Star numbers and deep sky object names. ## Key features - Detailed star charts - Stars down to sixth magnitude - Messier, NGC, and IC objects - Auto-detect location - Customizable chart layers - Search by constellation/star ## Recent user reviews (10 of 27) All indexed reviews: https://appshunter.io/ios/app/star-charts-by-wil-tirion/id411822062/reviews.md ### 1/5 — Mis-labeled galaxy - M53 *2023-04-14* In map 13, in the constellation Coma Berenices, M53 is labelled M35. You might want to update that. I’m pretty sure it’s an error. ### 5/5 — Does this work anymore *2021-02-27, version 1.3* Wonderful app, but I haven't used it for several years and now doesn't work in IOS 14.x... need help. ### 4/5 — Very Useful *2019-05-03, version 1.3* I bought Star Atlas 2000.0 many years ago by Wil Tirion and find this App to be very similar. Easier than carrying the large paper atlas. ### 5/5 — Wil Tirion star chart *2019-02-05, version 1.3* A good companion to ‘TriAtlas’ which is also available. ### 5/5 — Superb aesthetics *2018-08-02, version 1.3* From the same buggers who did StarDisk. A Norton Star Atlas for my phone. ### 2/5 — Does not work with most updated OS *2016-10-03* I really was excited about this for my observational field needs as I have the hard cover book versions or Mr Tiron's maps but it has too many glitches under the latest OS on the IPad. For one, you cannot set the settings bars to display messier and deep sky objects. The program allows you to toggle the switches but once you move back to the maps, the setting reverts and no deep sky objects appear on the maps. I would give it more stars if this is fixed ### 4/5 — Telrad Finder *2015-12-12* The app is great, but it would be nice if one was able to turn on a bullseye very much like the Telrad and able to move that bullseye to the target you looking for. With the bullseye on the map and the bullseye on the ones Telrad-Finder it will help one have more of a perspective of where the object are in relationship to the map and in the sky. See I have the spiral bound Sky Atlas 2000.0 by Wil Tirion that's 22" X 14" and it came with a acrylic Device that has Star Magnitude, Degrees and micro-find-glass bubble and the important one is the Telrad Bullseye, with the Bullseye option I'd give it 10 stars. Note the Objective is that you can turn on the bullseye then put your finger on the bullseye and drag it to that Galaxy, Nebula, Globular Cluster, place it on that target then on looks though the Telrad on ones telescope look at the chart and compares what you see on the chart to the sky. Oh yes and able to control brightness of the bullseye as well. Thank you. ### 3/5 — Accurate but clunky *2014-11-17, version 1.2* Would be flawless if we could navigate seamlessly instead of switching manually between maps. There is a constellation index, but if it is placed on a map margin you have to return to the index to view neighbouring constellations. Overall, clunky navigation, there are free apps with star maps out here that are easier to use. ### 5/5 — Un must *2014-02-08* Une référence pour les astronomes amateurs. ### 3/5 — Good But Could Be Great *2013-09-07* This is a good basic star chart, not Uranometria but OK. A few improvements could make it great: 1. Field of view circles. 2. Option to display mirror image view seen through a scope. 3. Slider to change faintest magnitude displayed. 4. Controls on screen not buried in a menu. 5. Stars to magnitude 8 or 9. ## Frequently asked questions about Star Charts by Wil Tirion ### What is Star Charts by Wil Tirion? Star Charts by Wil Tirion provides highly detailed celestial charts designed for observers using binoculars or telescopes. It's not a beginner-friendly planetarium app but offers in-depth views of the night sky. ### What celestial objects are included in Star Charts by Wil Tirion? The charts include stars down to sixth magnitude, double and variable stars, all Messier objects, and many NGC and IC catalogue objects. Additional layers can display constellation boundaries and deep sky object names. ### How does Star Charts by Wil Tirion help with observation? It automatically detects your location to display the sky overhead. You can choose between positive (white on black) or negative (black on white) charts and orient them north or south up to match your viewing position. ### What is the price of Star Charts by Wil Tirion? Star Charts by Wil Tirion is a paid application, priced at $3.99. There are no in-app purchases or advertisements mentioned. ### On which devices can I use Star Charts by Wil Tirion? Star Charts by Wil Tirion is available for iPhone, iPad, and iPod. It has an age rating of 4+. ### How often is Star Charts by Wil Tirion updated? The app was last updated on December 1, 2025, with version 1.4.2. It was originally released on January 13, 2011. ### What do users like about Star Charts by Wil Tirion? Users appreciate the detailed nature of the charts, making them suitable for serious observation. The inclusion of numerous deep sky objects and customizable layers are also highly valued. ### Can I search for specific constellations in Star Charts by Wil Tirion? Yes, you can search the charts by constellation name or major star name. This feature helps you quickly locate specific areas of the night sky. ## Version history (last 5 releases) ### 1.4.2 — 2025-12-01 General updates for iOS26 and location permissions. ### 1.4.0 — 2025-11-11 General update for iOS26 ### 1.3 — 2016-10-14 This app has been updated by Apple to display the Apple Watch app icon. Updated for iOS10 ### 1.2 — 2013-08-29 Bug fixes and presentation improvements ### 1.1 — 2011-09-15 * Added red filter option for use when observing * Changed swiping between maps to be more natural ## Apps similar to Star Charts by Wil Tirion | App | Rating | Price | Category | | --- | --- | --- | --- | | [Lunar Eclipse Guide: Aug 27–28](https://appshunter.io/ios/app/lunar-eclipse-guide-aug-2728/id1445813795) | 4.6 (778) | $1.99 | Reference | | [Birds of Europe - Field Guide](https://appshunter.io/ios/app/birds-of-europe-field-guide/id1431505604) | 4.2 (34) | Free | Reference | ## More apps by Astrovisuals - [Moon Phase Photo Maps](https://appshunter.io/ios/app/moon-phase-photo-maps/id411816389) - [Moon Chart](https://appshunter.io/ios/app/moon-chart/id764926089) - [Star Disc Planisphere](https://appshunter.io/ios/app/star-disc-planisphere/id953453599) All apps by Astrovisuals: https://appshunter.io/developer/411816392 ## Related topics [star charts by wil tirion](https://appshunter.io/ios/topics/star-charts-by-wil-tirion) · [group star charts](https://appshunter.io/ios/topics/group-star-charts) · [star charts](https://appshunter.io/ios/topics/star-charts) --- *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 2026-09-07.*