Stellarium is a free GPL software which renders realistic skies in real time with OpenGL. It is available for Linux/Unix, Windows and macOS. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope.
Is your feature request related to a problem? Please describe.
When zooming in, the altitude line subdivisions become useless because there are only markers at 30 and 60 degrees.
Describe the solution you'd like
Divide the visible vertical line in a few visible partitions, similar to the subdivision algorithm used for the azimuth grid.
Describe alternatives you've considered
workaround
The azimuth grid gives reasonable partitionings, but adds noise to the image.
Additional context
Add any other context or screenshots about the feature request here.
Is your feature request related to a problem? Please describe.
When zooming in, the altitude line subdivisions become useless because there are only markers at 30 and 60 degrees.
Describe the solution you'd like Divide the visible vertical line in a few visible partitions, similar to the subdivision algorithm used for the azimuth grid.
Describe alternatives you've considered
workaround
The azimuth grid gives reasonable partitionings, but adds noise to the image.
Additional context Add any other context or screenshots about the feature request here.