Birbla

Comments

Hacker News

> when I hang it from the ceiling everything will line up with their actual azimuth to the horizon

I guess that makes sense at high latitudes. More generally, if you align the plane of rotation of the orrery with the ecliptic, and rotate it just right, then the positions of the sun and planets wrt the centre of the orrery should match their actual altitude and azimuth.

by perilunar

Join the discussion

Write your take first — we'll ask for email only when you're ready to publish.

Sign in
  • Hacker News
  • > when I hang it from the ceiling everything will line up with their actual azimuth to the horizon

    I guess that makes sense at high latitudes. More generally, if you align the plane of rotation of the orrery with the ecliptic, and rotate it just right, then the positions of the sun and planets wrt the centre of the orrery should match their actual altitude and azimuth.

    by perilunar

Related stories

Decoding the obfuscated bash script on a Uniqlo t-shirt

tris.sherliker.net · 1072 points · 181 comments

StreetComplete: Fixing OpenStreetMap, one tiny quest at a time

streetcomplete.app · 761 points · 182 comments

Every new car sold in the European Union must include a driver monitoring camera

allaboutcookies.org · 737 points · 969 comments

Chat Control 1.0 and 2.0 Explained

fightchatcontrol.eu · 645 points · 238 comments

Microsoft fire idTech team at Id software

gamefromscratch.com · 597 points · 533 comments

Chat Control passed first round in EU Parliament

heise.de · 567 points · 246 comments