How To Install astronomical-almanac on Ubuntu 22.04
Introduction
In this tutorial we learn how to install astronomical-almanac on Ubuntu 22.04.
What is astronomical-almanac
astronomical-almanac is:
The aa program computes the orbital positions of planetary bodies and performs rigorous coordinate reductions to apparent geocentric and topocentric place (local altitude and azimuth). It also reduces star catalogue positions given in either the FK4 or FK5 system. Data for the 57 navigational stars is included. Most of the algorithms employed are from The Astronomical Almanac (AA) published by the U.S. Government Printing Office.
The aa program follows the rigorous algorithms for reduction of celestial coordinates exactly as laid out in current editions of the Astronomical Almanac. The reduction to apparent geocentric place has been checked by a special version of the program (aa200) that takes planetary positions directly from the Jet Propulsion Laboratory DE200 numerical integration of the solar system. The results agree exactly with the Astronomical Almanac tables from 1987 onward (earlier Almanacs used slightly different reduction methods).
Certain computations, such as the correction for nutation, are not given explicitly in the AA but are referenced there. In these cases the program performs the full computations that are used to construct the Almanac tables (references are provided).
There are three methods to install astronomical-almanac on Ubuntu 22.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install astronomical-almanac Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install astronomical-almanac using apt-get by running the following command:
sudo apt-get -y install astronomical-almanac
Install astronomical-almanac Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install astronomical-almanac using apt by running the following command:
sudo apt -y install astronomical-almanac
Install astronomical-almanac Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install astronomical-almanac using aptitude by running the following command:
sudo aptitude -y install astronomical-almanac
How To Uninstall astronomical-almanac on Ubuntu 22.04
To uninstall only the astronomical-almanac package we can use the following command:
sudo apt-get remove astronomical-almanac
Uninstall astronomical-almanac And Its Dependencies
To uninstall astronomical-almanac and its dependencies that are no longer needed by Ubuntu 22.04, we can use the command below:
sudo apt-get -y autoremove astronomical-almanac
Remove astronomical-almanac Configurations and Data
To remove astronomical-almanac configuration and data from Ubuntu 22.04 we can use the following command:
sudo apt-get -y purge astronomical-almanac
Remove astronomical-almanac configuration, data, and all of its dependencies
We can use the following command to remove astronomical-almanac configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge astronomical-almanac
References
Summary
In this tutorial we learn how to install astronomical-almanac package on Ubuntu 22.04 using different package management tools: apt, apt-get and aptitude.
