Asteria brings the universe to your browser: a free stargazing assistant and planetarium app that helps you explore the night sky and stay ahead of every celestial event.

Features
You can use Asteria straigt from your web browser, without needing to install anything. The stargazing app works on both your phone and tablet/laptop. If you’d like to add Asteria to your home screen or app menu, you can do so by selecting Add to home screen or Install app from the browser’s menu.
The stargazing app to improve your experience under the night sky
There are many stargazing apps, but Asteria is the only one that tells you exactly when you can best observe your favourite celestial objects. Asteria takes into account darkness, the moon phase, cloud cover and the altitude of objects above the horizon to provide you with personalised advice on the best moments to go stargazing or watch a celestial event.
Asteria is a cross-platform web application that works on all major browsers and operating systems. That way, with Asteria, you always have the night sky in your pocket.
Screenshots
Asteria is a concept by Waddensky Astronomy