Astrassyst

10+
Downloads
Content rating
Everyone
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About this app

This small application allows astronomers to have on a single screen:
- the date, local time, UTC time, and "summer time/winter time" information
- the ability to place a red overlay on the smartphone screen to create a red night light
- the ability to turn on the phone's flash to turn it into a flashlight (requests permission to use the camera)
- a compass
- the exact GPS position of the location (requests location permission)
- some information on the local weather based on the sensors detected on your smartphone (temperature, atmospheric pressure, humidity, wind speed and direction)

This information is useful for astronomers to adjust their mount, prepare their CROA (astronomical observation report), the red night light during observations, and the flash for dismantling after the evening.

This application is free, does not require an internet connection, does not collect any data, and is open source. You can find the Delphi source code at https://github.com/gbegreg/Astrassyst.

Feel free to give me your feedback or ideas for improvement ;)
Updated on
Apr 05, 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.
No data shared with third parties
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No data collected
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Committed to follow the Play Families Policy

What’s new

Version initiale 1.0.0.

App support

About the developer
BERSEGEAY Grégory Bernard
50 B Rue Pierre Chantelauze 79000 Niort France

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