# AstroTool: Night Sky Planner — Night Sky Planner & Logger > Night Sky Planner & Logger (iPhone/iPad app by luciano cavazos.) - Source: https://appshunter.io/ios/app/astrotool-night-sky-planner/id6771275558 (this page in markdown: same URL + `.md`) - Developer: [luciano cavazos](https://appshunter.io/developer/1273817106) - Category: Utilities, Education - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 17.0 · 3 MB - Released: 2026-05-26 - Data updated: 2026-08-07 - User reviews in markdown: https://appshunter.io/ios/app/astrotool-night-sky-planner/id6771275558/reviews.md ## What is AstroTool? AstroTool — Astrophotography Planner & Sky Map Plan better. Shoot more. Miss nothing. AstroTool is the complete astrophotography companion for iPhone — from scouting tonight's targets to logging every capture. A live sky map you can actually use in the field, planning tools built around how astrophotographers think, and a session logger that keeps your imaging history in one place. FREE FEATURES Sky Map A fully rendered live sky chart with 100+ bright stars, all 110 Messier objects, the Sun, Moon, and all planets. Constellation lines, constellation name labels, the Milky Way band, and the ecliptic arc are all drawn in real time. Tap any object for instant identification — name, type, magnitude, and position. Procedural rolling-hill horizon with compass ticks and cardinal labels. Motion-driven so the sky moves as you move. Deep Sky Catalog Browse the complete Messier catalog with search, type filters, and sort by ID, magnitude, or altitude. Every object shows rise, transit, and set times for your location, a visibility chart for tonight, and your full capture history for that target. Mark favorites and pick up right where you left off. PREMIUM — ONE-TIME UNLOCK Planner Everything you need before you head out. Moon phase and illumination with an imaging impact rating. Full twilight schedule — civil, nautical, and astronomical dusk and dawn with total dark-sky hours. All visible planets with live altitude and transit times. Jupiter's Galilean moons in a live canvas diagram. Best targets tonight ranked by a composite altitude and moon-separation score. Target schedule to plan your imaging windows object by object. Astrophotography Calculator Field of view for your exact sensor and focal length with sensor presets for Full Frame, APS-C, Micro 4/3, and custom. Unguided exposure limits via the 500, 400, and 300 rules for fixed tripod, tracking mount, and guided setups. Integration time calculator with sub count and a signal quality indicator. Session Logger Log every observing session with sky conditions — Bortle scale, seeing, and transparency. Add individual captures with exposure length, sub count, gain, filter, equipment, reference path, and a star rating. Total integration time tracked automatically. Export any session as formatted text to share or archive. Full equipment manager for telescopes and cameras with sensor specs, focal length, and reducer support. Target Schedule Build a nightly imaging plan by scheduling capture windows for specific catalog objects. Log past captures directly from the schedule. Mark targets done as you work through the night. Events & Alerts Upcoming meteor showers with ZHR and peak dates, lunar phases, planet oppositions and conjunctions, greatest elongations, and solstices and equinoxes. Notification support so you never miss an event. Polar Alignment Guide & Pre-Session Checklist Step-by-step polar alignment instructions and a fully customisable pre-session checklist with presets covering setup, camera, focusing, guiding, imaging, calibration, and wrap-up. — No subscription. No ads. No account required. Pay once, own everything forever. All calculations run on-device using your GPS location. No data is sent anywhere. ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | AstroTool Premium Unlock | $4.99 | one-time | ## Version history (last 2 releases) ### 1.01 — 2026-06-05 Sky Map DSO taps open a full action sheet: Details, Schedule Capture, Favorite, Log Any drag or pinch/zoom puts the map into manual mode — motion tracking pauses, a "Locked" indicator appears in the toolbar in orange The recenter button turns orange when locked to signal it'll resume live tracking when tapped Landscape layout improvements — popup repositions to top-left, compass and readouts scale down, alt/az bar gets more room Tab bar hides labels in landscape (compact height mode) so the map isn't crowded Double Stars (Brand New) 63 double stars loaded from a new doublestars.json catalog (starts with Albireo) Full data per star: primary & secondary magnitude, separation in arcseconds, position angle, star colors, constellation, and difficulty rating New DoubleStar model in AstroModels.swift CatalogService now loads double stars alongside Messier/deep sky objects Catalog New Deep Sky / Double Stars segmented picker at the top — switches the whole catalog view between modes Double Stars list: searchable by name, designation, or constellation Difficulty filter (Easy / Moderate / Challenging / Very Difficult) Tapping a double star opens a detail sheet Sorted by primary magnitude by default AstroMath Galilean moon positions — Io, Europa, Ganymede, Callisto relative to Jupiter Planet events calculator — upcoming oppositions, conjunctions, and greatest elongations for all 5 planets Equipment Reducer/barlow multiplier, sensor width/height, pixel size, and resolution (MP) all added to the Equipment profile form Equipment list rows now show a detail line: aperture · effective focal length · sensor size · pixel size ### 1.0 — 2026-05-27 No release notes. ## More apps by luciano cavazos - [Sticker Cluster](https://appshunter.io/ios/app/sticker-cluster/id1273937729) All apps by luciano cavazos: https://appshunter.io/developer/1273817106 --- *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 2026-08-07.*