3 ms·
> It's aligned to true north within 3/60 of one degree (making it, I believe, the most accurately aligned structure on the planet) 3/60 of a degree is mildly i
by _kst_ 7y ago
> It's aligned to true north within 3/60 of one degree (making it, I believe, the most accurately aligned structure on the planet)
3/60 of a degree is mildly impressive (Wikipedia says 4 minutes of arc rather than 3), but I seriously doubt that it's the most accurately aligned structure on the planet. With modern technology, surely we could align something much more closely than that given a good reason to do so.
- zarmin 7y agoI definitely agree that we could, given a good reason to. I took a cursory look and couldn't find anything to dispute its precision relative to other structures on Earth.
- fanf2 7y agoTransit telescopes are more accurately aligned but a lot smaller https://en.wikipedia.org/wiki/Meridian_circle https://en.wikipedia.org/wiki/Meridian_circle