Just to clearly state this (as there is some misinformation in this thread):

Stellarium-SF v0.9.1-1(from https://github.com/marko429/stel-sf/releases) is working really well on a Jolla 1 phone under SailfishOS 2.1.3.7 (and earlier SFOS releases), except for the garbled start-up screen.

Stellarium Mobile Sky Map v1.29.4 (for Android; I used v1.25 before) is also working fine, under AlienDalvik on a Jolla 1 phone.