5.36K reviews
Content rating
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About this app

Celestron® SkyPortal™
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™ 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.

SkyPortal has localization support for French, Italian, German, and Spanish.
Updated on
Sep 12, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Device or other IDs
This app may collect these data types
Personal info
Data is encrypted in transit

Ratings and reviews

4.65K reviews
Jeremiah Johnson
September 8, 2023
Annoying is the most accurate way to describe this app. It has a fairly nice layout and a lot of potential. However, the compass setting when viewing the sky does not accurately move with the sky. It will be accurate for wherever you start at, but will not move across the sky as you move your phone. If you're looking for a similar app try stellarium. I dropped them for sky portal (got a sky portal telescope for Christmas). I wish I never had
2 people found this review helpful
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Steve Smith
November 8, 2021
I really love the app! It does everything well! It is a joy to do a search and then look through the eyepiece and see what it is showing, but the three stars only for one major reason; THE PLACEMENT OF THE DAMN DISCONNECT TAB. I use the app on my phone where everything is somewhat cramped, and if after aligning the scope I want to goto, or do a search, I might accidentally tap the disconnect tab, and have to go through alignment over again. This has happened sometimes three times in a night!
109 people found this review helpful
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Ben Ewoldt
November 3, 2020
I love the concept of this, and it does make alignment easier. But, it drops the connection whenever the screen locks, requiring you to close and restart the app to reconnect. Because the alignment data is stored in the app instead of the telescope, this data is lost and you need to realign. The app either needs to manipulate the telescope's alignment process, and be able to pick that back up, or write the alignment data to persistent memory and ask to resume.
99 people found this review helpful
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What's new

Fixed startup crash affecting some users.