Astronomical observation planning tool with excellent star charting capabilities
4.25·84 reviews·1,000+ downloads
About DSO Planner (Astronomy)
DSO Planner (Astronomy) is an education app developed by Leonid Vasiliev.
Download Statistics
DSO Planner (Astronomy) has been downloaded 3.4 thousand times. In the last 30 days, the app was downloaded 17 times.
User Ratings
DSO Planner (Astronomy) is rated 4.25 out of 5 stars. The rating is based on 84 ratings.
App Information
DSO Planner (Astronomy) is FREE to download. The APK download size is 1.80 GB. The latest version available is 3.8.7. The last update was on October 17, 2023.
Technical Requirements
DSO Planner (Astronomy) requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play August 2014.
Description
DSO Planner is an astronomy observation planning tool with excellent star charting capabilities made by active and experienced amateur observers with a passion for visual observations. It has large integrated deep sky objects databases and provides an opportunity to create any number of user own object databases. DSO Planner boasts the largest star catalog among all Android astronomy applications (USNO UCAC4, 113 mn stars). The application excels at creating observation plans on the fly, has powerful note taking capabilities, PushTo and GoTo support and night (red) mode.
The app code is opensource (https://github.com/dsoastro/dsoplanner).
Before installation please make sure that you have at least 2 GB of free space on your internal SD card to download application databases! (Note: due to Google Play rules this data cannot be moved to your external SD card - you must have 2 GB free on your internal SD card!)
+ Star catalogs. USNO UCAC4 (full star coverage to 16m, 113 mn stars), Tycho-2 (2.5 mn stars), Yale bright star catalog (9 000 stars)
+ Deep sky catalogs. NgcIc (12 000 objects including Messier, Caldwell and Herschel 400 objects), SAC (Saguaro Astronomy Club database, 10 000 objects), UGC (13 000 objects), Lynds dark and bright nebula (3 000 objects), Barnard dark nebula (350 objects), SH2 (300 objects), PK (1 500 planetary nebula), Abell cluster of galaxies (2 700 objects), Hickson Compact Group (100 objects), PGC (1 600 000 galaxies)
+ Double Star catalog. Brightest Double Stars (2 300 stars), Washington Double Star Catalog (120 000 stars), double stars from Yale catalog. Info Panel with PA and separation for each component.
+ Comet support. Orbital elements of around 700 observable comets could be automatically updated via internet
+ Minor planet support. Database of 10 000 brightest minor planets
+ Famous Steve Gottlieb Notes attached to NGCIC objects
+ Custom catalogs. Unlimited capability to create fully searchable own catalogs
+ Cross-match names database. Search objects by less common names
+ DSS imagery support. Download DSS images of any sky portion into offline 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 your dobsonian mount and perform one star alignment. The app will automatically recalculate az/alt numbers to easily hunt the object
+ GoTo for Meade and Celestron controllers with bluetooth dongle
+ Unique visibility tool. Only objects that are visible with selected equipment in the current sky conditions could be shown on the 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 observation and object features (type, dimension, magnitude, minimal altitude, visibility and other fields of own custom catalogs). Remove duplicate objects when searching in intersecting databases. Create up to 4 observation lists. Easily track observed and remaining to be observed objects with note taking tool
+ Import tool. Import observation lists in Sky Safari and Sky Tools format. Use pre-compiled Night Sky Observer Guide observation lists.
+ Equipment. Keep track of all your telescopes and eyepieces. Use them for object visibility calculation and star charting. Use 500 popular eyepieces database
+ Twilight calculator. Calculation of the full darkness for a current night and for a month ahead.
Get a detailed PDF report for DSO Planner (Astronomy) with download trends, rating history,
and key performance statistics — useful for competitive research or tracking your own app.
Learn more
Are you the developer of this app? Join us for free to see more information about your app and learn how we can help you promote and earn money with your app.
Excellent app, very complete for my requirements and then some. Endless information in each layer with superb offline capabilities. The DSS photos download for each DSO makes for a great live viewing experience and after observations to browse through its endless content is very satisfying and gives you the feeling that you are still observing from the comfort of your armchair. Great piece of work guys. Thanks very much. 😆
★★★★★David Finlayson· Sep 5, 2022
For visual observers using manual mounts, DSO planner deservers a serious look. What it lacks in eye candy and animations it makes up for in thoughtful features. Like a star map that doesn't move when set your phone down to adjust your scope. Like a visibility score that can help you target objects appropriate for skies and equipment. Like the tel rad display that can be calibrated to an alt azimuth mount. It's true that you need to RTFM to get the most out of it.
★★★★☆Marvin W. Huddleston FRAS· May 18, 2019
This is more a question than review. After purchase, I still get the 'Sorry this function is only available in paid editions.' How do I fix this? One thing I don't like is the notes function. When selecting a Messier object it lists them with their NGC designation. Needs to list both.
★★☆☆☆SciRx· Oct 12, 2025
Cannot set loc of observer, not in settings... this is a problem of satellite service that uses major station covering large regions. We live in a different state from Chicago, about 400 miles. Makes the charts somewhat unusable
Google Play Rankings for DSO Planner (Astronomy)
This app is not ranked
Technologies used by DSO Planner (Astronomy)
15 permissions·4 libraries
Subscribe to see full permission and library details
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.
