# @worldscifest on Instagram

- **Type:** Image
- **Original URL:** https://www.instagram.com/p/z3dEjLk9mL
- **Gondola URL:** https://gondola.cc/posts/2461732-worldscifest-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/939890ebcd.jpg
- **Posted:** 2015-03-06T00:40:23.000+00:00
- **Account Owner:** WorldScienceFestival (@WorldSciFest) — https://gondola.cc/WorldSciFest

## Caption

#Star trail pictures are formed by taking a long-exposure photograph of the night sky; the rotation of the #earth causes the stars to appear to circle the #celestial poles. #Astronomers use star trail photos to help them determine if a particular place is a good spot to put a #telescope.

#science #ifls #iflscience #stars

## Stats

- **Views:** 0
- **Likes:** 36
- **Shares:** 0
- **Comments:** 0

## Tags

earth, science, astronomers, star, ifls, celestial, iflscience, telescope, stars

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