The Latin word astrum
Word astrum
Meaning star, constellation
See also Hittite: ḫa-aš-te-er ‘star’
Avestan: star- ‘star’
Synonyms stella

Other words that might be of interest
sol ‘sun’, luna ‘moon’, nubes ‘cloud’, nebula ‘cloud’, cālīgō ‘fog’, tenebrae ‘fog’, caelum ‘sky, heaven, vault of heaven’, nix ‘snow’, caelestis ‘heavenly, celestial’