Astronomy app to find planets, moons, stars, galaxies and more

AstroCalendar - Calendar of astronomical and stargazing events

The Mars Book app is dedicated for observing Mars close approach inautumn 2020.

A simple map of the sky that shows the positions of the sun, moonand planets.

A simple map of the Martian sky showing the positions of the sunand planets.

EclipseDroid is the ultimate companion foreach engaged solar eclipse observer and all people, who areinterested in solar eclipses Your Guide for obserserving the BlackSun. The app calculates exact data for any solar eclipse at anylocation, total as well as annular, hybrid or partial eclipses aswell as ancient or future ones. Relax and watch the eclipse and notyour cameras, EclipseDroid will work for you!New in version 6: Text to speech (TTS) supported,- Network commands for WiFi network based cameras (Tested forPenatx FluCard), seehttp://www.strickling.net/eclipsedroid.htm#actions fordetails.Since Version 5 includes an EFlight mode for eclipse observationfrom an aircraft. Now all timing tasks will run in a service whichprevent from being terminated in background. Minor improvements fornewer Canon cameras.EclipseDroid is especially designed to support engaged solareclipse observers in their observations. It will show timetablesand countdowns for the contact times, make acoustic announcementsof the contacts or other user defined events. It will launch otherapps, show text announcements and trigger internal or externalcameras connected by USB or optical cable. All these events can bedefined and customized in a script by the user. The timings of theevents depend on the contact times which are calculated with highprecision from the actual device's position or a customlocation.To prepare your eclipse observation, select a desired location fromthe map, from a list or input free coordinates. To rehearse andcheck your observation program, simply run EclipseDroid in eclipsesimulation mode. When selecting and checking your observation site,avoid unpleasant surprises like buildings or trees blocking youreclipse view! Just call the AR (Augmented reality) screen ofEclipseDroid to see an overlay of the Sun's position at eclipsetime with an actual camera image.EclipseDroid has several screens and layouts to show the precisecontact times for your location. These are the beginning and end ofthe eclipse (C1 and C4), the beginning and end of the total orannual phase (C2 and C3), the time of mid eclipse and the currentpercentage of coverage of the solar disk. You have the choice oftwo layouts: a smart layout showing the local circumstances and ananimation of the eclipse in a condensed form or the classic layoutwith countdowns for all contacts, an events list with the nextupcoming events and the actual eclipse view, if the eclipse isrunning.In the 'eclipse details' screen you get full information about thelocal and global circumstances and tables of magnitude times forphotographers. Pressing 'Menu' will add the eclipse to yourfavorite personal calendar.Required Permissions:- Hardware controls: Camera. Required for AR.May cause compatibility refusal for devices without front camera.Try installation from my websitehttp://www.strickling.net/eclipsedroid.htm!- Exact location and network location: For site-specificcalculations of the contact times.- Internet Access: Online selection and network based localizationof an observation site, database download.- SD card access: Storing settings, event lists, logs, locationsand databases. Cache for Google Maps for offline use.- System tools: Keep screen on if connected to external power- Your Account - Read Google service configuration: Needed for theGoogle maps moduleLunar eclipses are not supported, nor does the app contain prettypictures of huge graphics!Bugs or problems found? Please send an error report for bug fixingor send an email instead of giving bad ratings!Translators welcome! If you like this app and prefer it in yourlanguage, contact me! Translation is rather easy.

DSO Planner Plus is an astronomy observationplanning tool with excellent star charting capabilities made byactive and experienced amateur observers with a passion for visualobservations. It has large integrated deep sky objects databasesand star catalogs, and provides an opportunity to create any numberof user own object databases. The application excels at creatingobservation plans on the fly, has powerful note takingcapabilities, PushTo and GoTo support and night (red) mode.Consider Pro Edition if you need more stars/PGC objects.Before installation please make sure that you have at least 540MBof free space on your internal SD card to download applicationdatabases! (Note: due to Google Play rules this data cannot bemoved to your external SD card - you must have 540MB free on yourinternal SD card!)+ Star catalogs. USNO UCAC4 (full star coverage to 14m, 15.4 mnstars), Tycho-2 (2.5 mn stars), Yale bright star catalog (9 000stars)+ Deep sky catalogs. NgcIc (12 000 objects including Messier,Caldwell and Herschel 400 objects), SAC (Saguaro Astronomy Clubdatabase, 10 000 objects), UGC (13 000 objects), Lynds dark andbright nebula (3 000 objects), Barnard dark nebula (350 objects),SH2 (300 objects), PK (1 500 planetary nebula), Abell cluster ofgalaxies (2 700 objects), Hickson Compact Group (100 objects), PGC(153 000 galaxies to 16.7m)+ Double Star catalog. Brightest Double Stars (2 300 stars),Washington Double Star Catalog (120 000 stars), double stars fromYale catalog. Info Panel with PA and separation for eachcomponent.+ Comet support. Orbital elements of around 700 observable cometscould be automatically updated via internet+ Minor planet support. Database of 10 000 brightest minorplanets+ Famous Steve Gottlieb Notes attached to NGCIC objects+ Custom catalogs. Unlimited capability to create fully searchableown catalogs+ Cross-match names database. Search objects by less commonnames+ DSS imagery support. Download DSS images of any sky portion intooffline cache and overlay it on the star chart+ Offline images. Integrated set of images of most NgcIc objects,opportunity to add own images when creating custom catalogs+ Nebula contours. Contours of famous nebulae+ Object contours. Ellipse in real dimension and orientation+ Night mode. Fully red screen with red keyboard and menus+ PushTo for dobsonian mounts with setting circles. Level yourdobsonian mount and perform one star alignment. The app willautomatically recalculate az/alt numbers to easily hunt theobject+ GoTo for Meade and Celestron controllers with bluetoothdongle+ Unique visibility tool. Only objects that are visible withselected equipment in the current sky conditions could be shown onthe Star Chart (for objects from NGCIC/SAC/PGC catalogs)+ Planning tool. Filter any objects database by observer location,sky condition, astronomical equipment, time range of observationand object features (type, dimension, magnitude, minimal altitude,visibility and other fields of own custom catalogs). Removeduplicate objects when searching in intersecting databases. Createup to 4 observation lists. Easily track observed and remaining tobe observed objects with note taking tool+ Import tool. Import observation lists in Sky Safari and Sky Toolsformat. Use pre-compiled Night Sky Observer Guide observationlists.+ Note taking. Take text and/or audio notes+ Observing places. GPS, manual coordinates, custom lists. Databasewith 24 000 cities worldwide+ Equipment. Keep track of all your telescopes and eyepieces. Usethem for object visibility calculation and star charting. Use 500popular eyepieces database+ Twilight calculator. Calculation of the full darkness for acurrent night and for a month ahead.+ 2 visual themes (bright and dark)+ Powerful share/export/import capabilities (of databases,observation lists, notes)Disclaimer

DSO Planner Free is an astronomy observation planning toolwithexcellent star charting capabilities made by active andexperiencedamateur observers with a passion for visualobservations. FreeEdition comes equipped with Yale bright starcatalog (9 000 starsto 6.5m) and 220 deep sky objects (Messier andCaldwell catalogscontaining the brightest galaxies, nebula,globular clusters, openclusters and planetary nebula). Considerother Editions for morestars / objects. Application features: +Planning tool. Filter anyobjects database by observer location, skycondition, astronomicalequipment, time range of observation andobject features (type,dimension, magnitude, minimal altitude,visibility and other fieldsof own custom catalogs). Removeduplicate objects when searching inintersecting databases. Createup to 4 observation lists. Easilytrack observed and remaining to beobserved objects with notetaking tool + Double Star catalog. 50brightest double stars fromYale catalog. Info Panel with PA andseparation for each component.+ Unique visibility tool. Onlyobjects that are visible withselected equipment in the current skyconditions could be shown onthe Star Chart + Cross-match namesdatabase. Search objects by lesscommon names + Famous SteveGottlieb Notes attached to NGCICobjects + Offline images.Integrated set of deep sky object images+ DSS imagery support.Download DSS (Digitized Sky Survey) imagesof any sky portion intooffline cache and overlay it on the starchart + PushTo fordobsonian mounts with setting circles. Levelyour dobsonian mountand perform one star alignment. The programwill automaticallyrecalculate az/alt numbers to easily hunt theobject + Nebulacontours. Contours of famous nebulae + Objectcontours. Ellipse inreal dimension and orientation on the skychart + Bright SolarSystem objects. Sun, Moon, Mercury, Venus,Mars, Jupiter, Saturnshown on the sky chart + Night mode. Redkeyboard and menus + Notetaking. Take text and/or audio notes +Observing places. GPS, manualcoordinates, custom lists. Databasewith 24 000 cities worldwide +Equipment. Keep track of all yourtelescopes and eyepieces. Use themfor object visibilitycalculation and star charting + Twilightcalculator. Sun, Moon rise/ transit / set. Moon Phase. Civil,Nautical, Astronomicaltwilights. + 2 visual themes (bright anddark) + Powerfulshare/export/import capabilities (of databases,observation lists,notes) Disclaimer

Astronomical observation planning tool with excellent star chartingcapabilities

Information about the Sun and tools for building and understandingsundials.

Universal astronomy ephemeris App for calculating high precisionephemeris