StarSquare

Purpose To determine a (rough) elevation i.e. altitude (vertical angle above the horizontal: full range, i.e. 0 degrees to 90 degrees) of a star (or, moon) or landscape object, when it's not too windy, on land. DO NOT USE FOR THE SUN, for the sun use the HangDial. For a slower-to-use but more-accurate print, use StarRings.


Accuracy Around 1 degree, but if you can hold it stable you should be able to do better than that.


How to print it
Print flat (rotate it 90)
0.2mm layer height
NO brim or raft (skirt ok), as want print to be symmetrical
NO supports (it has two rectangular regions with built-in 'supports' you remove post-print)
Infill: doesn't matter, say 25%
White (or glow in the dark?) filament might be best for night-time visibility
'Random' Z seam location (to stop blobs forming down one side of holes)

Caveat
This thing and the associated PDFs are not intended for life-critical or indeed any applications other than educational only! Use for navigation etc. at your own risk!