SkyPortal

5.78K reviews
Content rating
Everyone
1M+
Downloads
Content rating
Everyone
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About this app

Celestron® SkyPortal™
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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
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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
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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.
Celestron Telescope Controller and Planetarium application
Updated on
Aug 19, 2026

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

5.02K reviews
Jonathan Hall
June 29, 2026
This used to have a red light mode that was easier on your eyes in dark skies. now that seems to be gone and all that remains is a blue light mode. Whoever was in charge of that change was not an astronomer. The app is still useful as a star chart and has an easy way to tell you what's overhead or will be.
1 person found this review helpful
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Matthew Nordtvedt
April 1, 2026
A buggy mess! i never used an older version, but based on recent reviews at last done if the problems are a result of an update a few months ago. Slew buttons don't work all the time, random disconnects, stability issues result in slow performance and crashes, there's too much to list. Two stars only because it's not totally worthless, but it's sure trying.
6 people found this review helpful
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Shannon Matthewson
December 29, 2025
Sky Portal WiFi Dongle Connection Issues - Just received the SE4, as a gift for my daughter 12/28. Setup when fine, alignment was tricky so I decided to use the app and wifi dangle. Able to connect in Direct Mode and control remotely just fine, but the app crashes when you attempt to connect to Access Point. Says there is a bug. Also, from my laptop, it would not let me enter my SSID and Password at all. Can't type in the fields. Tried from multiple computers. please help!
3 people found this review helpful
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What’s new

Support for StarSense AutoAlign V2
Other bug fixes and improvements
Content rating
Everyone
Learn more

App support

About the developer
Celestron Acquisition, LLC
techteam@celestron.com
2835 Columbia St Torrance, CA 90503-3877 United States
+1 310-218-4036

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