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AstroCalc is ment as the amateur astronomers pocket book, containing everything you need to plan a night watching the sky.

Currently AstroCalc can show the position of the Sun, Moon and planets graphically, show set and rise time, magnitude and distance from Earth, and date for next new and full moon.

The graphic display are divided into two sections: A half circle showing the vertical position of the object and a full circle showing the direction of the object.

Please remember to select 'Get position from GPS', otherwise you will get the object data for a position in southern Denmark ;). 'Get position from GPS' samples the GPS position until it has your position with sufficient accuracy, and stores the position for future use. While the position is sampled, an GPS icon are shown in the upper right corner of the screen.

This is an early version, so if you have ideas or wishes, feel free to contact me either here, or on



Application versions: 
File astrocal-1.5-1.armv7hl.rpm263.94 KB14/01/2022 - 01:25
File astrocal-1.5-1.aarch64.rpm264.69 KB14/01/2022 - 01:25
File astrocal-1.6-1.armv7hl.rpm281.32 KB27/04/2022 - 20:31
File astrocal-1.6-1.aarch64.rpm283.12 KB27/04/2022 - 20:31

- Problem after SFOS 4.4 where changes to settings was no longer saved or read, corrected.
- Sandboxing permissions now included.


Ta_das's picture

Thank you so much for the convenient and informative program. I am not an amateur astronomer, just a person to whom nature in all its forms and manifestations is important. And living in a crowded city not always you can see the track of the moon or the sunset and sunrise. And now I can know it conveniently. And even start acquainting with the planets.

rgsidler's picture

The program is extraordinary. I use it on a regular basis while watching the nightly sky. Though some more stars and/or the possibility to select what to be visible would even improve the experience. Great work, thank you very much! Roland

kif's picture

Thank you for the flowers.

I am continuously working on improvements, such as star charts and maybe star identification, but until now I haven't found a way to implement any of those without destroying the clean and simple interface of the current program.

At some time, not too far in the future I hope to have an update with interesting new features.


Mick's picture

Tried to update from 1.1-1 to 1.3-1 on Intex Aqua Fish but it said "Installation Failed".
I now find that 1.1-1 now just displays a white screen.

Any ideas?

kif's picture

Hi Mick

It would seem that the failed installation has overwritten something.

Try and uninstall v. 1.1-1, and then install 1.3-1, does that help?

Else try and start AstroCalc from a command line, just write astrocal and press enter, does that give any error messages?


Mick's picture

When running from command line I'm still getting a white screen and terminal is reporting:-

[W] unknown: 37 - file /// usr/share/astrocal/qml/astrocal.qml:37:30: Type FirstPage unavailable

initialPage: Component ( FirstPage { { }

[W] unknown: 35 file: ///usr/share/astrocal/qml/pages/FirstPage.qml:35:1 module "Qtlocation" is not installed

import Qtlocation 5.0

kif's picture

Ok, it semes the change to make the instalation automatically install needed packages has not helped!

You need to execute the following from a command line:

pkcon install qt5-qtdeclarative-import-location

After that you should be able to run AstroCalc.