How To Install skyviewer on Fedora 34

skyviewer is Program to display HEALPix-based skymaps in FITS files

Introduction

In this tutorial we learn how to install skyviewer on Fedora 34.

What is skyviewer

SkyViewer is an OpenGL based program to display HEALPix-based skymaps, saved in FITS format files. The loaded skymaps can be viewed either on a 3D sphere or as a Mollweide projection. In either case, realtime panning and zooming are supported, along with rotations for the 3D sphere view, assuming you have a strong enough graphics card.

We can use yum or dnf to install skyviewer on Fedora 34. In this tutorial we discuss both methods but you only need to choose one of method to install skyviewer.

Install skyviewer on Fedora 34 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install skyviewer using dnf by running the following command:

sudo dnf -y install skyviewer

Install skyviewer on Fedora 34 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install skyviewer using yum by running the following command:

sudo yum -y install skyviewer

How To Uninstall skyviewer on Fedora 34

To uninstall only the skyviewer package we can use the following command:

sudo dnf remove skyviewer

skyviewer Package Contents on Fedora 34

/usr/bin/skyviewer
/usr/lib/.build-id
/usr/lib/.build-id/25
/usr/lib/.build-id/25/74b24e91e87a0bc2338d36abd06a38ecdde43a
/usr/share/applications/skyviewer.desktop
/usr/share/doc/skyviewer
/usr/share/doc/skyviewer/README.txt
/usr/share/doc/skyviewer/general.txt
/usr/share/doc/skyviewer/notes-ngp.txt
/usr/share/doc/skyviewer/test_iqu.fits
/usr/share/licenses/skyviewer
/usr/share/licenses/skyviewer/License.txt
/usr/share/pixmaps/skyviewer.png

References

Summary

In this tutorial we learn how to install skyviewer on Fedora 34 using yum and dnf.