Spell:Calder's Starry Sky

Birthright spell

Quick at-a-glance summary of what the spell does.
Magician 2, wizard 2. Divination. Caster can see the stars in the sky despite clouds, storm, etc. Source: BoM

The detailed description of the spell

'Use/talent Notes, things folks should know when lining up the spell/ability. Notes on tactics should go below.''

Add any relevant tips and techniques, as well as situations where the spell is most useful/popular and any notes on how the spell is perceived by a given race/culture.
This is spell is used by ship navigator's and travelers to find their way by means of the starts even when the sky is overcast or hidden from view.

If you could add an AD&D conversion (i.e. clerical sphere of the spell, magic resistance %age not Spell resistance, impact on proficiency slot not skill DC) it would increase the potential number of users.