- sfdmaps.at.ua load/maps/classic/ostervold_…Østervold Observatory by Raline. 23 December 2017, 3:14 AM. Bot support added & some fixes.
- quizquizgo.com map/216614-where-is-ostervold-…Where is Østervold Observatory? Coordinates: 12.575833333333 55.686666666667. Show larger map.
- aztekium.pl wordlist.py…Air Force Maui Optical and Supercomputing observatory. Ametlla de Mar Observatory. Andrushivka Astronomical Observatory. ... Østervold Observatory.
- wblog.wiki ru/Østervold_Observatory
- baotanglichsu.vn en/Articles/3187/18854/astronomy…Astronomer Holger Pedersen found some cardboard boxes from the old Østervold Observatory in thebasement of the Niels Bohr Institute.
- popularmechanics.com space/a18779/120-year-old-…"They had been moved there when the observatory was shut down many years ago. ... In the boxes were about 300 photographic glass plates taken at Østervold.
- github.com github-nakasho/astroph/issues/1684The history of the observatory library at Østervold in Copenhagen, Denmark #1684. ... 1642年に開設されたØstervold天文台の歴史についてまとめたもの。
- smithsonianmag.com smart-news/long-lost-photos-…“One day when I went down to the basement to make a cup of tea, I noticed some cardboard boxes from the Østervold Observatory...
- thehistoryblog.com archives/39826He was in the basement getting a cup of tea when he noticed some boxes marked Østervold Observatory, a Copenhagen observatory that was in use...