Explore the sky across time, preview star trails, and plan tonight's observations. • Travel to BCE dates and curated historical celestial events. Simulate and export star trails, with checks for framing and shooting duration. • Discover celestial distances, lunar terrain, Jupiter moon transits and shadows, and Earth's city lights. Explore improved planetary and night-sky detail. • Find tonight's recommended targets in observing plans, filter locally visible Starlink batches, and choose from more camera and smart telescope profiles. • Improved large-screen layouts for iPhone Duo, first-time guidance, sky recognition, and polar alignment tools. • Fixed star chart loading, links from celestial events, bright planet display, object zooming, and lunar orientation. Improved recovery after switching pages.

The Milky Way, night sky, and close-up views of planets have more depth in the star chart. Fly to a target more smoothly after finding it, and see clearer altitude changes, trajectories, and observing plans in celestial object details. Explore the Solar System now has more natural solar detail and eclipse shadows, plus quick access from the eclipse list. Zooming, one-handed controls, and satellite orbits after changing dates have also improved. The home screen makes stargazing conditions, light pollution, and air quality easier to read. When several observing windows are available, it shows the two with the highest scores.

Set the light-pollution level manually on the Sky page to explore a sky view that better matches your observing site. The map pointer now follows the correct direction, making it easier to orient yourself outdoors. Solar System exploration now shows more realistic daylight on Earth, with lighting that better reflects its position relative to the Sun. We also fixed issues when entering the lunar stargazing view and corrected related display problems, so you can switch into the Moon's sky more reliably and continue exploring without unexpected visual glitches.

Explore the skies from new worlds: added surface stargazing simulations for the Moon, Mars, Mercury, Europa and Ganymede. Improved sky chart visuals, Moon and eclipse simulations, and space station motion. Upgraded the star recognition engine and fixed misplaced constellation lines in some photos. Explore the Solar System with new models of the Chinese Space Station and International Space Station, richer asteroid belt and Kuiper Belt views, and improved visuals. Added zodiacal light observing tips and fixed incorrect compass directions on the map.

• Sky image recognition has been upgraded to 1.9, improving constellation lines and label positioning in wide-angle photos while reducing false identifications. • Camera AR in the star chart is now more stable when switched on and off quickly, reducing black screens and stuttering. • Returning to and re-entering the star chart now better preserves your current observing state. • The light pollution map now recommends the dedicated web map first, while the in-app map layer remains available at any time. • Feed ads now load at a better time, reducing unnecessary requests during startup. • Improved the display of home-screen coordinates and bottom star-chart controls on narrow screens and around safe areas, and fixed rare cases where a location was incorrectly restored to zero latitude and longitude.

Explore the Solar System in an all-new 3D experience—visit planets and moons, or enter flight mode and navigate through space yourself. New • Added an interactive 3D Solar System experience with simulated free flight. • Redesigned the Next Lunar Eclipse page and added an eclipse visibility map. Improved • Refreshed star-chart textures and night-sky rendering, with a new zodiacal light display. • Upgraded sky image recognition to version 1.8 for better narrow-field solving. • Simplified the launch image to reduce the app’s install size. Fixed • Corrected Milky Way timing calculations for certain dates.

What’s new: • Explore the night sky with the new immersive Sky Tour. • Add atmosphere to stargazing with new music and sound effects in the star chart. • Add astronomical events to reminders so you don’t miss important phenomena. • Improved the comet detail layout and charts. • Added a lens selection system to the photography calculator. • Upgraded offline plate solving to version 1.7, improving performance for narrow fields of view. • Additional performance and experience improvements.

• Added satellite cloud imagery, accessible from the light pollution map • Added Vietnamese, Indonesian, and Turkish support and improved localization • Added Canon G1 X Mark III and Nikon D90 to the camera library • Improved landscape layouts and overall adaptability • Fixed known crashes and image rendering issues • Added cache management with one-tap cleanup in Settings

• New Target Planner shows target altitude, cloud cover, and observing windows for the next 15 nights • New amber night mode for easier viewing after dark • Redesigned home screen makes observing conditions and suggested times clear at a glance • Hourly forecasts now switch between two models; location search is more accurate and reliable • Faster star chart loading and smoother favorite locations • Fixes for widgets, satellite catalog, weather forecasts, sky recognition, and other known issues

This update brings new features and experience improvements: • Arabic and Brazilian Portuguese support • Moon phase and sunrise details in the 15-day forecast • Red-light night vision and navigation style options • Redesigned location page and astrophotography calculators • Improved RTL layouts, satellite orbit compatibility, and sky recognition Plus stability, privacy, and performance improvements.

Plan your next observing night with a new 15-day nighttime weather forecast and clear-night-rate map, plus more capable tools for navigating and recognising the sky. New • 15-day nighttime weather forecasts to help you plan future observing sessions • A clear-night-rate map for comparing long-term observing conditions across locations • International Space Station orbital altitude changes, so you can follow its altitude trend Improved • Star Chart AR now shows the centre-pointing direction for more intuitive aiming • Higher success rates for star-field recognition • A smoother and more intuitive overall Star Chart experience

This update brings several new features: • Year-round stargazing climate — enter any place to see its yearly observing conditions and best months • Shareable design posters — for stargazing climate, meteor showers, celestial events and moon phases • More realistic Moon — 3D craters and shading on the home and 3D globe, with lunar place names • Adjustable text size — new Small / Standard / Large / Extra Large options • Auto-updating widgets — dark windows, moon phase and meteor showers refresh by date without opening the app Plus various stability and performance improvements and bug fixes.

This update brings several new features: • Home-screen widgets — key sky info at a glance, without opening the app • Quick Actions — long-press the app icon to jump to what you use most • Satellite transits — a brand-new feature • Refreshed menu — redesigned for easier navigation • Improved star chart search • Redesigned moon-phase calendar, plus more supported camera models Plus various stability and performance improvements and bug fixes.

Version 3.2.1 What's New - Star Chart: Added high-precision terrain simulation, combining real horizon and terrain relief to preview observing conditions, target visibility, and composition before you go out - Star Chart: Improved viewfinder and AR interactions, making framing, alignment, and switching smoother, with field rotation estimates to help you judge image rotation before shooting - Star Chart: Improved the timeline and constellation drawing, with more compact time controls and steadier constellation lines, labels, and artwork - Sky: Added custom celestial objects so you can add your own observing targets to planning; deep-sky object recommendations and display are clearer - Home and Sky: Added custom layouts so you can arrange common modules around your observing habits and reduce unnecessary information - New User Guide: Added first-use guidance to help new users set location, understand core features, and start using the star map, Sky, and observing planning tools Recent Updates - Map, Sky, and Home: Rebuilt planning views for the Sun, Moon, Milky Way, direction, time, and observing location, with improved glow forecasts, solar visibility, and moon phase display - Star Chart: Improved real observing environment simulation, DSS layers, mosaic planning, AR comparison, constellation artwork, background restore, and viewfinder display - Sky Recognition: Improved success rate for low-star-count, wide-angle, and complex sky photos, with results that link more consistently with the star chart - Observation Planning: Improved Milky Way, moonless windows, satellite passes, deep-sky targets, and light pollution information, helping you decide when to go, what to observe, and how to shoot

Version 3.2.0 What's New - Map: Rebuilt the map page and added Sun, Moon, and Milky Way planning with time, direction, and observing location - Sky Guide: Rebuilt the sky page with sky simulation and target recommendations for clearer observing guidance - Home: Improved the first screen, separated morning/evening glow forecasts, and added a solar visibility overview - Moon: Improved 3D Moon and home moon-phase rendering for a more realistic appearance - Star Chart: Fixed an issue where real horizon masking could fail to appear - Experience: Improved font rendering, localisation layout, and several UI interactions Recent Updates - Star Recognition: Improved success rate for low-star-count, wide-angle, and complex photos - Star Chart: Improved loading, back navigation, background restore, moonlight, Milky Way, horizon, and constellation artwork - Star Chart: Improved viewfinder, mosaic planning, DSS layers, AR comparison, and real shooting-environment simulation - Observation Planning: Improved Milky Way, moon events, moonless windows, satellite passes, and light pollution data

Version 3.1.4 What's New - Star Recognition: Improved success rate for low-star-count, wide-angle, and complex photos - Star Map: Improved loading, back navigation, and restoring from background for smoother interaction - Star Map: Refined moonlight, Milky Way, horizon, constellation artwork, and mobile sky rendering - Star Map: Improved viewfinder and mosaic planning so previews and exports match more closely - Star Map: Added and updated camera and equipment data for more accurate viewfinder field-of-view calculations - Guiding Accuracy Calculator: Added and updated camera data - Observation Planning: Improved Milky Way, moon events, moonless windows, and satellite pass information Recent Updates - Added multiple DSS layer options in the star map for switching deep-sky backgrounds by target and field of view - Added mosaic planning simulation and export in the star map for wide-field deep-sky imaging - Added AR sky comparison to overlay the star map on the real sky - Added real shooting-environment simulation in the new star map for planning and site selection - Updated 2025 light pollution data and recalculated 2012-2024 data

Version 3.1.3 What's New - Added multiple DSS layer options in the star map for switching deep-sky background layers by target and field of view - Added mosaic planning simulation and export in the star map to help plan wide-field deep-sky imaging - Improved star map rendering with reduced star halos and clearer constellation lines - Added AR sky comparison to overlay the star map on the real sky for easy identification - Refined AR viewfinder controls and view-matching accuracy - Added Shanghai Museum landscape location - Improved meteor shower focus interaction and animation behavior Other Recent Updates - New star map with real shooting-environment simulation for astrophotography planning - Updated 2025 light pollution data and recalculated 2012–2024 data - Added sunrise and sunset glow forecasts and maps - Added precipitation amount to hourly forecasts - Added star selection masks for more precise star recognition

Version 3.1.2 What's New - Improved star map rendering with reduced star halos and clearer constellation lines - Added AR sky comparison to overlay the star map on the real sky for easy identification - Refined AR viewfinder controls and view-matching accuracy - Added Shanghai Museum landscape location - Improved meteor shower focus interaction and animation behavior Other Recent Updates - New star map with real shooting-environment simulation for astrophotography planning - Updated 2025 light pollution data and recalculated 2012–2024 data - Added sunrise and sunset glow forecasts and maps - Added precipitation amount to hourly forecasts - Added star selection masks for more precise star recognition

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Version 3.1.0 What’s New - Added a new star map with real shooting-environment simulation to help with astrophotography planning and location scouting - Updated 2025 light pollution data and recalculated light pollution data from 2012 to 2024 - Added sunrise and sunset glow forecasts and maps - Added precipitation amount to the hourly forecast - Increased the saved-location limit - Improved interactions and performance Other Recent Updates - Added user-selected star masks for more precise star recognition - Improved HEIC/HEIF import handling on iPhone - Better star recognition and sky viewing experience - Stability improvements and bug fixes

Version 3.0.3 - Added user-selected star masks for more precise star recognition - Improved HEIC/HEIF import handling on iPhone - Better star recognition and sky viewing experience - Stability improvements and bug fixes

# Version 3.0.2 [New Star Recognition Features] - Constellation illustration overlay display - Planet annotation position display [Star Recognition] - Offline instant star chart recognition - Online recognition mode with deep sky object support - Constellation, asterism, and deep sky object annotations - Quick view in star chart [3D Moon & Lunar Eclipse] - 3D lunar eclipse simulation - Birthday moon viewing - HD moon texture upgrade - Lunar rover and far side locations - Moon poster generation [Saved Locations] - Edit saved location names - Batch view stargazing conditions [Stargazing Experience] - Optimized AI best stargazing timing - KP index display fixes - Hourly and 15-day forecast details - Starlink transit time window optimization This update focuses on enhancing star recognition capabilities and 3D celestial body visualization, with significantly improved stability.

# 3.0.0 Major Update [Sky Recognition] - Offline sky photo instant solving with high speed and efficiency - New online solving mode supporting deep-sky object recognition - Constellations, asterisms and deep-sky object labeling - Quickly view objects directly on the star map [Enhanced 3D Moon & Lunar Eclipse] - New 3D lunar eclipse simulation - View the Moon phase on your birthday - Upgraded high-resolution lunar textures - Added lunar rover and far-side position display - New Moon poster generation feature [Favorite Locations Management] - Edit saved location names - Batch view stargazing conditions for saved locations [Stargazing Experience Improvements] - Optimized AI best stargazing time recommendations - Fixed KP index display issue - Hourly forecast and 15-day forecast detail popups - Optimized Starlink transit time window This version significantly enhances sky recognition capabilities and 3D celestial visualization, with improved overall stability.

# 3.0.0 Major Update [Sky Recognition] - Offline sky photo instant solving with high speed and efficiency - New online solving mode supporting deep-sky object recognition - Constellations, asterisms and deep-sky object labeling - Quickly view objects directly on the star map [Enhanced 3D Moon & Lunar Eclipse] - New 3D lunar eclipse simulation - View the Moon phase on your birthday - Upgraded high-resolution lunar textures - Added lunar rover and far-side position display - New Moon poster generation feature [Favorite Locations Management] - Edit saved location names - Batch view stargazing conditions for saved locations [Stargazing Experience Improvements] - Optimized AI best stargazing time recommendations - Fixed KP index display issue - Hourly forecast and 15-day forecast detail popups - Optimized Starlink transit time window This version significantly enhances sky recognition capabilities and 3D celestial visualization, with improved overall stability.

### Version 2.7.0 Updates - Added a new 3D Moon page and improved the Moon rendering on the home screen - Added a Solar Flare data page, with updates to the Aurora forecast - Added an Equivalent Focal Length calculator - Added AOD (Aerosol Optical Depth) data display - Added support for 12 / 24-hour time format switching - Improved the home screen layout - Improved polar alignment epoch and calculation logic - Improved the “Tonight’s Meteor Shower” prediction model - Improved the Clear Sky Clock icon, with tap-to-view details - Redesigned the bottom navigation bar and interactions