Star Explorer：星空观测 vs Star Map Night Sky

Star Explorer 是一款面向天文爱好者的 iPhone 与 iPad 原生观星工具。 从“今晚看什么”开始：结合设备位置与天气信息查看观测条件，在实时、未来或历史星图中寻找月球、行星、亮星和深空天体。你也可以使用离线天文助手提问，设置天象提醒，并把收藏与观测记录保存在设备上。 核心功能： - 今晚推荐：查看天气、星空质量、能见度和当晚天体建议 - 交互星图：切换时间、搜索天体、查看方位和详细资料 - 离线天文问答：不依赖云端也能获取基础天文解释和观星计划 - 天文事件：浏览流星雨等事件并设置本地提醒 - 观星旅行规划：根据出发地、暗空目的地与装备生成安全清单 - 宇宙课堂：按课程学习夜空辨认、望远镜和星空摄影基础 - 观测社区：服务可用时发布、举报和屏蔽分享；离线时仍可保存本地草稿 AR 实时观星当前免费开放。Star Explorer Pro 是 ¥88 一次性买断，可解锁图片识别、已配置时的云端 AI 增强、深空数据库和天文摄影助手，不会自动续费；实际价格以 App Store 购买确认页为准。 天象、天气、旅行路线与 AI 输出可能存在误差，不构成导航、气象或安全保证。户外观测前请核实官方信息；未经合格太阳滤镜保护，请勿用相机、双筒镜或望远镜直接观测太阳。

SpaceUtil is a star map with AR that helps you find constellations, explore a 3D solar system, follow the ISS tracker live and see where Voyager is right now. The whole night sky in one astronomy app, with no account, and almost everything computed on your device without an internet connection. ■ AR STAR MAP AND SKY VIEWER • Point your phone at the sky to see the stars and constellations in that direction. • 120,000 stars and all 88 constellations with lines, names and artwork. • AR mode overlays the sky chart on your camera view. • Red night mode for comfortable stargazing in the dark. • Search for a star, planet or constellation and an arrow guides you to it. • Rewind or fast-forward time to see the sky on any date. ■ 3D SOLAR SYSTEM • An orrery with the Sun, the eight planets and major moons in their real positions. • Rotate and zoom with your fingers, and tap a planet for its story. • Live distances to each planet, Jupiter's four big moons and Saturn's rings. • Follow conjunctions and planet alignments. ■ LIVE ISS TRACKER • See where the International Space Station is right now on a 3D globe and a world map, updated every second. • Visible pass predictions for your location with time, direction and altitude. • A sky-path view of each pass. ■ WHERE ARE VOYAGER 1 AND 2? • Follow the two farthest human-made objects on a 3D map of the solar system. • See their current distance from Earth, computed on your device from public space-agency reference data. ■ TONIGHT • A briefing on tonight's observing conditions based on the moon phase and twilight times. • 5 objects worth looking at right now. • Sun, moon and planet rise and set times. • Civil, nautical and astronomical twilight. ■ MOON, ECLIPSES, METEOR SHOWERS • Moon phase calendar and lunar age. • Upcoming solar and lunar eclipses. • Every major meteor shower with its peak night and how bright the moon will be. ■ ASTROPHOTOGRAPHY HELPERS • 500-rule exposure calculator. • Milky Way planner. • Golden hour, blue hour and moonrise direction. ■ LEARN AND PLAY • Constellation myths and a space quiz. • The sky on your birthday and light travel time. • Light-year, AU and parsec converter. • An exoplanet catalog. • An observation log with badges. ■ GETTING STARTED • Open the star map and hold your phone up toward the sky. • Switch on AR mode to see constellation lines over the camera image. • Turn on red mode once you are outside in the dark. • Search for a planet or star and follow the arrow. • Check Tonight before heading out. ■ WHO IS IT FOR? • Stargazers identifying stars and constellations with AR. • Space fans tracking the ISS, the Voyager probes and planetary alignments. • Astrophotographers planning Milky Way shots. • Anyone learning about exoplanets, myths and moon phases. ■ TIPS • Use time controls to preview the sky on an eclipse date. • Check how bright the moon will be before a meteor shower peak night. • Log what you observe to collect badges. ■ FAQ • Do I need an account? No. There is no account and no cloud. • Does it work offline? Almost everything is computed on your device. • Is the camera image saved? No, never. • Are there ads? A single banner ad at the bottom of the screen supports development. No full-screen or video ads. ■ PRIVACY AND PERMISSIONS • Location is used only on the device to align the sky map. • The camera powers the AR view, and its image is never captured, stored or sent anywhere. Data sources: an open star catalog (CC BY-SA) and public satellite, space-weather and planetary data. SpaceUtil is not affiliated with or endorsed by the data providers. Clear skies from SpaceUtil.