Mars Atlas vs Constellation Finder & Planner

Turn the red dot in the night sky into a world of mountains, canyons, craters, and exploration. Mars Atlas connects 450 Martian features and exploration sites through an interactive 3D globe, detailed imagery, elevation profiles, and explanations in English and Japanese. Built for iPhone and iPad. EXPLORE A 3D MARS GLOBE Rotate and zoom a globe based on Viking MDIM 2.1 imagery with MOLA-derived terrain shading. Follow place labels from a global view to individual features, then compare them with the surrounding landscape. DISCOVER 450 PLACES Explore volcanoes, craters, valleys, plains, landing sites, and proposed SpaceX Starship landing candidates. Each entry brings together an overview, key facts, observing notes, related features, and sources. Search by name, alias, region, mission, or agency, or use voice search in your selected language. LOOK CLOSER AT THE SURFACE Bundled high-resolution image packs cover 447 features. Explore imagery and derived products from HiRISE, CTX, THEMIS, and MOLA. Available layers vary by site and may include grayscale, infrared, processed, colorized, or false-color imagery. Selected exploration sites also show rover traverses. READ THE TERRAIN IN PROFILE MOLA-derived elevation profiles are available for 427 features. See how giant volcanoes rise and deep canyons cut across the surface, with the map and profile in one place. FOLLOW THE HISTORY OF MARS LANDINGS Discover 16 landing locations from Mars 2 in 1971 to Tianwen-1 and Zhurong in 2021. Successful landings and failed attempts appear together, connecting exploration history to actual places on Mars. FIND MARS IN YOUR SKY Check altitude, azimuth, rise, transit, set, illumination, and phase angle for your observing location. Astronomy calculations run on your device without a remote calculation service. A night-vision mode helps at the telescope. WATCH EARTH AND MARS APPROACH An interactive 3D simulation shows the Sun, Earth, and Mars moving along their orbits. Scrub through time, jump to nearby closest approaches, and compare how the geometry changes from one encounter to the next. READ, LISTEN, AND CUSTOMIZE Switch between English and Japanese. Listen to English narration with Christopher or Michelle, or choose an available iOS voice. Adjust label density, text size, terrain shading, and coordinate grids. The interface supports Dynamic Type, VoiceOver, and Reduce Motion. TRY FREE, UNLOCK ONCE Open explanations for five different features free of charge. A single non-consumable in-app purchase unlocks explanations for all features. No subscription. Restore Purchases is available. SOURCES AND CONTEXT Names, coordinates, imagery, terrain data, and mission information are organized from public sources including USGS/IAU, NASA/JPL/USGS, MGS MOLA, HiRISE, CTX, THEMIS, and Viking MDIM. Sources and processing notes are available in the app. This is an independent app, not an official app of or endorsed by NASA, JPL, USGS, IAU, or SpaceX. SpaceX Starship locations are research candidates, not confirmed landing sites or planned cities. An internet connection is required to download narration audio, open external source links, and make in-app purchases.

Constellation Finder & Planner turns one observing site, time, target and telescope setup into an offline plan you can carry into the field and preserve as a complete record. FIND FROM THE HORIZON Search bundled constellations, bright stars and planets. Enter a site and time to see exact altitude, azimuth, horizon position and cardinal direction on a dark field plot. Manual coordinates, search and reticle controls always work; location and device heading are optional. PLAN WITH YOUR TELESCOPE Choose a target, observing time, site and equipment profile. Inspect rise and set times, maximum altitude and a calculated altitude path. Telescope focal length, eyepiece focal length and apparent field produce magnification and an estimated true field-of-view overlay. Save the plan for Field Mode. USE A RED-SAFE FIELD VIEW Bring the selected target, site, time, equipment and calculated coordinates into large red-safe controls. Check off the target, then add what you actually observed without leaving the connected plan. KEEP A REAL OBSERVING LOG Record the observer, local time, site, telescope and eyepiece, sky notes and observation note. Search the chronological logbook and correct a saved record in place so its preview and exports remain aligned. EXPORT COMPLETE LOCAL RECORDS Preview the exact observation rows before creating a local PDF or CSV. Preview, PDF and CSV use the same coordinates, units, equipment, time-zone meaning and data attribution. User-selected backup and restore preserve authored sites, equipment, plans and observations without carrying purchase authority. PRIVATE AND OFFLINE The astronomy catalog and calculations are bundled. No account, camera, remote catalog, weather feed or remote analytics is required. Your observer archive stays on the device unless you choose a local export or share action. Location and motion are requested only from the controls that use them, and manual entry preserves the complete workflow when either permission is declined. The included Review Sample site, equipment profile, plan and observation are clearly labelled illustrative and can be removed. Altitude, azimuth, rise, set and field-of-view values are descriptive calculations from the entered site, time and equipment. They do not promise visibility, weather or observing safety. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ — Privacy Policy: https://kanac.github.io/syanac-legal/