iPhone Screenshots


iStellar is a planetarium App that shows the starry sky seen from the place and time of your choice. It is optimized for Multi-Touch control, allowing you to operate intuitively; drag to move the star chart, pinch to zoom in and out, and so on.
The star chart can be rotated from portrait to landscape, and you can even fix the location via GPS (only for iPhone 3G).

- Over 16,000 star data, with name for 254 stars
- Twinkles like actual stars
- Simulates distortion (atmospheric refraction and extinction) at low altitude
- Displays the Sun, daylight, twilight, the Moon (with shape and phase), 8 planets, Pluto
- Shows name, line and picture for all constellations
- Milky Way with real tone
- Plots Messier objects and their names
- Comets with accurate position and magnitude. Data can be downloaded whenever available
- Meteor Shower Radiants
- Solar eclipse simulation with high accuracy
- Adjustable moonlight and light polution
- Landscape and azimuth / direction grid
- Beautiful animation (real-time, adjusted time, reversal)
- Simulates every second between 1 Jan 1900 to 31 Dec 2099
- Switches screen according to the device's orientation
- Zoom by pinching(3 to 180 degrees)
- Easy moving through the sky by dragging, and centering by double-tap
- Object Search function
- Free choice of location and time zone, instant setting with GPS

What's New

Version 2.9.0

* Due to update of the development tool OS requirements changed to iOS 8.0 or later.
* Fixed an error where the sunset glow failed to appear.
* Fixed the erroneous titles of Object Display setting screens.
* Automated updating of data.
* Shows iOS status bar at the top of the star chart.

Ratings and Reviews


Sure beats trying to find stars on a real star atlas ...

The "Light Pollution" setting is a brilliant feature for deciding what you could actually see in-town. This is also one of the only apps I've seen that includes the Constellation Picture/Artwork so you can try to visualize what you actually see. The app feels very light-weight and not prone to crashing from heavy use.

I can go stargazing anytime and anyplace using this app! Search for a constellation, check the name of a star, or simply admire the sunset, twinkling stars, the Milky Way, etc. iStellar is no less functional than an actual star atlas/planetarium, and far more easy to control!


Look Somewhere Else

I actually purchased this app by mistake. I wanted to view more details and read the reviews, but the apple store just starts the purchase without a confirmation.

Now for the app. It shows stars, it shows constellations. Ok, big whoop. You can't search for objects, you can't adjust magnitude to relate to your actual human eye view. The app doesn't track your position relative to the direction your facing. So basically, I'm not impressed and actually quite put out that I paid 9 bucks for this app which should have sold for 99 cents.

I believe they have a nice solid foundation on which to build and make improvements. But for now, this app is one to either avoid, or maybe the developer will rethink the price.

Bottom line. Look somewhere else.

Puschkin in SF

"Incompatible with this iPhone"

That's the message I get after the most recent upgrade to iStellar. Tech Support at AstroArts gave the typical non-response:

We're sorry that you got trouble.
iStellar works any iPhone/iPod touch with iPhone OS 3.0 or later. So you try re-sync application using iTunes.

I resync at least once a day, and I'm running the latest OS on an iPhone 3G.


AstroArts Inc.
44.2 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Japanese
Age Rating
Rated 4+
© 2009 AstroArts Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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