Celestron SkyPortal4.0.2 - App Store
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Publisher Description
Celestron’s newest planetarium app is an astronomy suite that redefines how you experience the night sky. Explore the Solar System, 120,000 stars, over 200 star clusters, nebulae, galaxies, and dozens of asteroids, comets, and satellites-including the ISS. SkyPortal includes everything you need to experience the night sky in an exciting new way. When connected to a compatible Celestron WiFi telescope, you can automatically point the telescope to any object in the database and view it with great detail.
Planetarium Features
Simulate the night sky and plan your observing session with a custom list of tonight’s best objects based on your exact time and location. Look ahead to see when Jupiter’s Great Red Spot will be visible, animate transits, eclipses, and other celestial events. View hundreds of photos or listen to more than four hours of audio narration to enhance your stargazing experience.
.Simulate the night sky from anywhere on planet Earth, up to 100 years in the past or future.
.Compass Mode (with compatible devices): Hold your device up to the sky for a real-time synchronized display of celestial objects - from star names, constellations, planets, to nebulae and galaxies.
.Control compatible Celestron WiFi telescopes with sophisticated mount modeling for quick and accurate go-to alignment.
.Animate transits, conjunctions, eclipses, and other events with SkyPortal's Time controls.
.Explore the sky with Night Vision turned on, and preserve your eyesight after dark.
.Learn the history, mythology, and science of the heavens with SkyPortal's hundreds of object descriptions.
.Browse hundreds of astronomical photographs and NASA spacecraft images
.Access over 4 hours of audio commentary to guide you through the best celestial objects.
Computerized Telescope Control
Pair your device to your compatible Celestron WiFi telescope, align with Celestron’s patented SkyAlign(TM) technology, and you’re ready to explore! Identify objects instantly. Tap any object and your telescope automatically centers it in the eyepiece.
SkyPortal’s telescope alignment incorporates advanced mount modeling, providing better pointing accuracy than other telescope systems which rely on a dedicated computer.
Version History Support for StarSense AutoAlign V2
Other bug fixes and improvements 4.0.2 Aug 25 Support for SkyPortal WiFi module hardware update
Miscellaneous UI improvements 4.0.1 Jun 23 Fixes issue preventing switching WiFi Network Connection from Direct Connect to Access Point mode
Improved “look and feel”
Various other bug fixes and performance improvements 4.0.0 Mar 12 Added support for StarSense AutoGuider 3.5.0 07/05/2023 Improved WiFi connections. 3.4.4 06/04/2022 Bug fixes and performance enhancements. 3.4.3 04/08/2022 Bug fixes and performance improvements. 3.4.2 08/04/2021 Minor improvements and bug fixes 3.4.1 03/06/2021 Russian language support added.
Localization fixes.
Graphics Improvements
Observation UI fixes 3.4.0 01/22/2021 Fixes for related to iOS14 3.3.4 10/16/2020 Localization Fixes 3.3.2 08/14/2020 Connectivity issue with older WiFi modules fixed
Translation fixes
Focus Motor control UI improvements
Push notification support added 3.3.1.1 06/12/2020 Celestron Focus Motor control added
StarSense code overhauled
Localization support added for German, Italian, French, Spanish, and Japanese
Bug fixes 3.3.0.5 05/04/2020 - Celestron's All-Star Polar Alignment routine, allowing you to easily polar align your German Equatorial or wedge-mounted Alt-Az mount, without accessories that aid in polar alignment
- Tilt-to-slew, tilt your phone/tablet to slew your telescope
- Bug fixes 3.1.0.9067 03/18/2019 -First release of SkyPortal powered by SkySafari6
-Bug fixes 3.0.0 06/14/2018 - Improved connectivity
- Wedge alignment routine bug fixed 2.4.1 09/29/2017 - New Celestron telescope settings icon
- Bug fix which caused it to take 30 - 45 seconds to connect to an Evolution mount
- Bug fix which caused the Access-Point menu to not open 2.3.0 05/24/2017 -Improved interface response time when connected to Celestron WiFi-enabled telescopes.
-Miscellaneous stability fixes. 2.2.3 04/15/2017 --Fixed crash when running on iOS 8.
--Fixed bug that prevented browsing the online saved settings repository on iPhone.
--Fixed StarSense alignment bug when used with the CGX mount 2.1.1 01/31/2017 * Fixes critical bug with StarSense on CGX
* Support for CGX and AstroFi telescopes
* Other bug fixes and improvements 2.0.1 10/17/2016 -- Added telescope control for Astro Fi series telescopes.
-- Object list image thumbnails
-- Updated object descriptions
-- Improved sky and horizon
-- New sound effects
-- Compass now smoother and more accurate
-- Track ISS and Satellites
-- Improved OpenGL 3D models of many moons
-- Fixed some UI bugs, and other minor fixes. 2.0 08/24/2016 StarSense automatic alignment support added. Now connects to a Celestron telescope equipped with StarSense AutoAlign.
--Telescope control with StarSense, app automatically aligns the telescope with a single tap!
--Supports StarSense EQ, Alt-Az, and Wedge align, and StarSense manual align. 1.5 12/23/2015 - Support for alignment when using a mount with a equatorial wedge.
- Improved graphical support for iPhone 6 Plus
- Improvements to the UI for using saved settings.
- Added support for push notifications.
- Stability improvements. 1.4 04/24/2015 • Fixed minor bug where tracking would not begin until slewing to an object after completing a SkyAlign.
• Added 64-bit iOS support. 1.3 02/27/2015 * First star slew for southern hemisphere EQ align
* Tracking update for EQ and Alt/Az
* EQ operation on reconnect 1.2 09/12/2014
About Celestron SkyPortal
The company that develops Celestron SkyPortal is Celestron, LLC.. The latest version released by its developer is 4.0.2.
To install Celestron SkyPortal on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Celestron SkyPortal as malware if the download link is broken.
How to install Celestron SkyPortal on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Celestron SkyPortal is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Celestron SkyPortal is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 4.0.2
posted on 2026-10-14
Version History Support for StarSense AutoAlign V2
Other bug fixes and improvements 4.0.2 Aug 25 Support for SkyPortal WiFi module hardware update
Miscellaneous UI improvements 4.0.1 Jun 23 Fixes issue preventing switching WiFi Network Connection from Direct Connect to Access Point mode
Improved “look and feel”
Various other bug fixes and performance improvements 4.0.0 Mar 12 Added support for StarSense AutoGuider 3.5.0 07/05/2023 Improved WiFi connections. 3.4.4 06/04/2022 Bug fixes and performance enhancements. 3.4.3 04/08/2022 Bug fixes and performance improvements. 3.4.2 08/04/2021 Minor improvements and bug fixes 3.4.1 03/06/2021 Russian language support added.
Localization fixes.
Graphics Improvements
Observation UI fixes 3.4.0 01/22/2021 Fixes for related to iOS14 3.3.4 10/16/2020 Localization Fixes 3.3.2 08/14/2020 Connectivity issue with older WiFi modules fixed
Translation fixes
Focus Motor control UI improvements
Push notification support added 3.3.1.1 06/12/2020 Celestron Focus Motor control added
StarSense code overhauled
Localization support added for German, Italian, French, Spanish, and Japanese
Bug fixes 3.3.0.5 05/04/2020 - Celestron's All-Star Polar Alignment routine, allowing you to easily polar align your German Equatorial or wedge-mounted Alt-Az mount, without accessories that aid in polar alignment
- Tilt-to-slew, tilt your phone/tablet to slew your telescope
- Bug fixes 3.1.0.9067 03/18/2019 -First release of SkyPortal powered by SkySafari6
-Bug fixes 3.0.0 06/14/2018 - Improved connectivity
- Wedge alignment routine bug fixed 2.4.1 09/29/2017 - New Celestron telescope settings icon
- Bug fix which caused it to take 30 - 45 seconds to connect to an Evolution mount
- Bug fix which caused the Access-Point menu to not open 2.3.0 05/24/2017 -Improved interface response time when connected to Celestron WiFi-enabled telescopes.
-Miscellaneous stability fixes. 2.2.3 04/15/2017 --Fixed crash when running on iOS 8.
--Fixed bug that prevented browsing the online saved settings repository on iPhone.
--Fixed StarSense alignment bug when used with the CGX mount 2.1.1 01/31/2017 * Fixes critical bug with StarSense on CGX
* Support for CGX and AstroFi telescopes
* Other bug fixes and improvements 2.0.1 10/17/2016 -- Added telescope control for Astro Fi series telescopes.
-- Object list image thumbnails
-- Updated object descriptions
-- Improved sky and horizon
-- New sound effects
-- Compass now smoother and more accurate
-- Track ISS and Satellites
-- Improved OpenGL 3D models of many moons
-- Fixed some UI bugs, and other minor fixes. 2.0 08/24/2016 StarSense automatic alignment support added. Now connects to a Celestron telescope equipped with StarSense AutoAlign.
--Telescope control with StarSense, app automatically aligns the telescope with a single tap!
--Supports StarSense EQ, Alt-Az, and Wedge align, and StarSense manual align. 1.5 12/23/2015 - Support for alignment when using a mount with a equatorial wedge.
- Improved graphical support for iPhone 6 Plus
- Improvements to the UI for using saved settings.
- Added support for push notifications.
- Stability improvements. 1.4 04/24/2015 • Fixed minor bug where tracking would not begin until slewing to an object after completing a SkyAlign.
• Added 64-bit iOS support. 1.3 02/27/2015 * First star slew for southern hemisphere EQ align
* Tracking update for EQ and Alt/Az
* EQ operation on reconnect 1.2 09/12/2014
version 4.0.2
posted on 2026-08-27
Version History Support for StarSense AutoAlign V2
Other bug fixes and improvements 4.0.2 1d ago Support for SkyPortal WiFi module hardware update
Miscellaneous UI improvements 4.0.1 Jun 23 Fixes issue preventing switching WiFi Network Connection from Direct Connect to Access Point mode
Improved “look and feel”
Various other bug fixes and performance improvements 4.0.0 Mar 12 Added support for StarSense AutoGuider 3.5.0 07/05/2023 Improved WiFi connections. 3.4.4 06/04/2022 Bug fixes and performance enhancements. 3.4.3 04/08/2022 Bug fixes and performance improvements. 3.4.2 08/04/2021 Minor improvements and bug fixes 3.4.1 03/06/2021 Russian language support added.
Localization fixes.
Graphics Improvements
Observation UI fixes 3.4.0 01/22/2021 Fixes for related to iOS14 3.3.4 10/16/2020 Localization Fixes 3.3.2 08/14/2020 Connectivity issue with older WiFi modules fixed
Translation fixes
Focus Motor control UI improvements
Push notification support added 3.3.1.1 06/12/2020 Celestron Focus Motor control added
StarSense code overhauled
Localization support added for German, Italian, French, Spanish, and Japanese
Bug fixes 3.3.0.5 05/04/2020 - Celestron's All-Star Polar Alignment routine, allowing you to easily polar align your German Equatorial or wedge-mounted Alt-Az mount, without accessories that aid in polar alignment
- Tilt-to-slew, tilt your phone/tablet to slew your telescope
- Bug fixes 3.1.0.9067 03/18/2019 -First release of SkyPortal powered by SkySafari6
-Bug fixes 3.0.0 06/14/2018 - Improved connectivity
- Wedge alignment routine bug fixed 2.4.1 09/29/2017 - New Celestron telescope settings icon
- Bug fix which caused it to take 30 - 45 seconds to connect to an Evolution mount
- Bug fix which caused the Access-Point menu to not open 2.3.0 05/24/2017 -Improved interface response time when connected to Celestron WiFi-enabled telescopes.
-Miscellaneous stability fixes. 2.2.3 04/15/2017 --Fixed crash when running on iOS 8.
--Fixed bug that prevented browsing the online saved settings repository on iPhone.
--Fixed StarSense alignment bug when used with the CGX mount 2.1.1 01/31/2017 * Fixes critical bug with StarSense on CGX
* Support for CGX and AstroFi telescopes
* Other bug fixes and improvements 2.0.1 10/17/2016 -- Added telescope control for Astro Fi series telescopes.
-- Object list image thumbnails
-- Updated object descriptions
-- Improved sky and horizon
-- New sound effects
-- Compass now smoother and more accurate
-- Track ISS and Satellites
-- Improved OpenGL 3D models of many moons
-- Fixed some UI bugs, and other minor fixes. 2.0 08/24/2016 StarSense automatic alignment support added. Now connects to a Celestron telescope equipped with StarSense AutoAlign.
--Telescope control with StarSense, app automatically aligns the telescope with a single tap!
--Supports StarSense EQ, Alt-Az, and Wedge align, and StarSense manual align. 1.5 12/23/2015 - Support for alignment when using a mount with a equatorial wedge.
- Improved graphical support for iPhone 6 Plus
- Improvements to the UI for using saved settings.
- Added support for push notifications.
- Stability improvements. 1.4 04/24/2015 • Fixed minor bug where tracking would not begin until slewing to an object after completing a SkyAlign.
• Added 64-bit iOS support. 1.3 02/27/2015 * First star slew for southern hemisphere EQ align
* Tracking update for EQ and Alt/Az
* EQ operation on reconnect 1.2 09/12/2014
version 4.0.1
posted on 2026-08-08
Version History Support for SkyPortal WiFi module hardware update
Miscellaneous UI improvements 4.0.1 Jun 23 Fixes issue preventing switching WiFi Network Connection from Direct Connect to Access Point mode
Improved “look and feel”
Various other bug fixes and performance improvements 4.0.0 Mar 12 Added support for StarSense AutoGuider 3.5.0 07/05/2023 Improved WiFi connections. 3.4.4 06/04/2022 Bug fixes and performance enhancements. 3.4.3 04/08/2022 Bug fixes and performance improvements. 3.4.2 08/04/2021 Minor improvements and bug fixes 3.4.1 03/06/2021 Russian language support added.
Localization fixes.
Graphics Improvements
Observation UI fixes 3.4.0 01/22/2021 Fixes for related to iOS14 3.3.4 10/16/2020 Localization Fixes 3.3.2 08/14/2020 Connectivity issue with older WiFi modules fixed
Translation fixes
Focus Motor control UI improvements
Push notification support added 3.3.1.1 06/12/2020 Celestron Focus Motor control added
StarSense code overhauled
Localization support added for German, Italian, French, Spanish, and Japanese
Bug fixes 3.3.0.5 05/04/2020 - Celestron's All-Star Polar Alignment routine, allowing you to easily polar align your German Equatorial or wedge-mounted Alt-Az mount, without accessories that aid in polar alignment
- Tilt-to-slew, tilt your phone/tablet to slew your telescope
- Bug fixes 3.1.0.9067 03/18/2019 -First release of SkyPortal powered by SkySafari6
-Bug fixes 3.0.0 06/14/2018 - Improved connectivity
- Wedge alignment routine bug fixed 2.4.1 09/29/2017 - New Celestron telescope settings icon
- Bug fix which caused it to take 30 - 45 seconds to connect to an Evolution mount
- Bug fix which caused the Access-Point menu to not open 2.3.0 05/24/2017 -Improved interface response time when connected to Celestron WiFi-enabled telescopes.
-Miscellaneous stability fixes. 2.2.3 04/15/2017 --Fixed crash when running on iOS 8.
--Fixed bug that prevented browsing the online saved settings repository on iPhone.
--Fixed StarSense alignment bug when used with the CGX mount 2.1.1 01/31/2017 * Fixes critical bug with StarSense on CGX
* Support for CGX and AstroFi telescopes
* Other bug fixes and improvements 2.0.1 10/17/2016 -- Added telescope control for Astro Fi series telescopes.
-- Object list image thumbnails
-- Updated object descriptions
-- Improved sky and horizon
-- New sound effects
-- Compass now smoother and more accurate
-- Track ISS and Satellites
-- Improved OpenGL 3D models of many moons
-- Fixed some UI bugs, and other minor fixes. 2.0 08/24/2016 StarSense automatic alignment support added. Now connects to a Celestron telescope equipped with StarSense AutoAlign.
--Telescope control with StarSense, app automatically aligns the telescope with a single tap!
--Supports StarSense EQ, Alt-Az, and Wedge align, and StarSense manual align. 1.5 12/23/2015 - Support for alignment when using a mount with a equatorial wedge.
- Improved graphical support for iPhone 6 Plus
- Improvements to the UI for using saved settings.
- Added support for push notifications.
- Stability improvements. 1.4 04/24/2015 • Fixed minor bug where tracking would not begin until slewing to an object after completing a SkyAlign.
• Added 64-bit iOS support. 1.3 02/27/2015 * First star slew for southern hemisphere EQ align
* Tracking update for EQ and Alt/Az
* EQ operation on reconnect 1.2 09/12/2014 SkyPortal Universal Support -- supports Celestron telescopes equipped with the Celestron WiFi Adapter. 1.1 08/22/2014
version 4.0.0
posted on 2026-06-12
Version History Fixes issue preventing switching WiFi Network Connection from Direct Connect to Access Point mode
Improved “look and feel”
Various other bug fixes and performance improvements 4.0.0 Mar 12 Added support for StarSense AutoGuider 3.5.0 07/05/2023 Improved WiFi connections. 3.4.4 06/04/2022 Bug fixes and performance enhancements. 3.4.3 04/08/2022 Bug fixes and performance improvements. 3.4.2 08/04/2021 Minor improvements and bug fixes 3.4.1 03/06/2021 Russian language support added.
Localization fixes.
Graphics Improvements
Observation UI fixes 3.4.0 01/22/2021 Fixes for related to iOS14 3.3.4 10/16/2020 Localization Fixes 3.3.2 08/14/2020 Connectivity issue with older WiFi modules fixed
Translation fixes
Focus Motor control UI improvements
Push notification support added 3.3.1.1 06/12/2020 Celestron Focus Motor control added
StarSense code overhauled
Localization support added for German, Italian, French, Spanish, and Japanese
Bug fixes 3.3.0.5 05/04/2020 - Celestron's All-Star Polar Alignment routine, allowing you to easily polar align your German Equatorial or wedge-mounted Alt-Az mount, without accessories that aid in polar alignment
- Tilt-to-slew, tilt your phone/tablet to slew your telescope
- Bug fixes 3.1.0.9067 03/18/2019 -First release of SkyPortal powered by SkySafari6
-Bug fixes 3.0.0 06/14/2018 - Improved connectivity
- Wedge alignment routine bug fixed 2.4.1 09/29/2017 - New Celestron telescope settings icon
- Bug fix which caused it to take 30 - 45 seconds to connect to an Evolution mount
- Bug fix which caused the Access-Point menu to not open 2.3.0 05/24/2017 -Improved interface response time when connected to Celestron WiFi-enabled telescopes.
-Miscellaneous stability fixes. 2.2.3 04/15/2017 --Fixed crash when running on iOS 8.
--Fixed bug that prevented browsing the online saved settings repository on iPhone.
--Fixed StarSense alignment bug when used with the CGX mount 2.1.1 01/31/2017 * Fixes critical bug with StarSense on CGX
* Support for CGX and AstroFi telescopes
* Other bug fixes and improvements 2.0.1 10/17/2016 -- Added telescope control for Astro Fi series telescopes.
-- Object list image thumbnails
-- Updated object descriptions
-- Improved sky and horizon
-- New sound effects
-- Compass now smoother and more accurate
-- Track ISS and Satellites
-- Improved OpenGL 3D models of many moons
-- Fixed some UI bugs, and other minor fixes. 2.0 08/24/2016 StarSense automatic alignment support added. Now connects to a Celestron telescope equipped with StarSense AutoAlign.
--Telescope control with StarSense, app automatically aligns the telescope with a single tap!
--Supports StarSense EQ, Alt-Az, and Wedge align, and StarSense manual align. 1.5 12/23/2015 - Support for alignment when using a mount with a equatorial wedge.
- Improved graphical support for iPhone 6 Plus
- Improvements to the UI for using saved settings.
- Added support for push notifications.
- Stability improvements. 1.4 04/24/2015 • Fixed minor bug where tracking would not begin until slewing to an object after completing a SkyAlign.
• Added 64-bit iOS support. 1.3 02/27/2015 * First star slew for southern hemisphere EQ align
* Tracking update for EQ and Alt/Az
* EQ operation on reconnect 1.2 09/12/2014 SkyPortal Universal Support -- supports Celestron telescopes equipped with the Celestron WiFi Adapter. 1.1 08/22/2014 1.0 05/22/2014
version 4.0.0
posted on 2026-03-12
Fixes issue preventing switching WiFi Network Connection from Direct Connect to Access Point mode
Improved “look and feel”
Various other bug fixes and performance improvements
version 3.5.0
posted on 2023-07-05
Jul 5, 2023
Version 3.5.0
Added support for StarSense AutoGuider
version 3.5.0
posted on 2023-07-05
Added support for StarSense AutoGuider
version 3.4.4
posted on 2022-06-04
Jun 4, 2022
Version 3.4.4
Improved WiFi connections.
version 2.0
posted on 2014-05-22
Disclaimer
Official App Store Link
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