• What is Koppernigk?

Koppernigk is the daily personal astronomy weblog of Jeroen van Dorp. Not unlike social clipping sites like Flipboard, Pinterest or Tumblr, or news aggregators like Reddit or Fark it’s a continuing project to keep up with developments in astronomy by posting at least one entry per day. And I’m the one doing the unsocial clipping.

  • Who was Koppernigk?

Mikolaj (or Niclas) Koppernigk was a Polish astronomer, mathematician, lawyer and physician commonly known as Copernicus. He wrote De revolutionibus orbium coelestium (On the Revolutions of the Celestial Spheres), the first treatise with a comprehensive heliocentric description of the Solar system. Niclas was born in 1473 and died in 1543. Here is the Wikipedia lemma on Koppernigk.

  • Did you ever actually read De revolutionibus orbium coelestium?

Good question. The answer is yes. I own two copies, one in Latin and one in English. I read the latter from beginning to end.

  • Is your blog a reliable source of information?

Caveat Emptor. This weblog contains quotes, clippings, snippets, press releases from a variety of sources, free information from around the web without any comment from me, and sometimes my personal opinion – and mine only. The content consists of personal choices. I’m not an independent journalist, nor a scientist.

  • I miss a picture. A link does not work. I get a 404. And more.

Older entries on this weblog are archived, but not maintained. Often weblinks go dead, as in many weblogs.
A lot of older pictures are missing due to the fact that once upon a time my site was hacked and the backup procedure of the media files went wrong. It’s a long and uninteresting story, but oddly enough one that is very logical in the wonderful world of software.

  • That’s my story/picture/idea!

This site is a hobby project that costs money instead of generating it. All use of material is based on a fair use policy.
If you feel copyright has been violated, contact me and the material will be removed from the site.

  • That’s not my story/picture/idea! But it should be!

You can use anything you find on this site for non-commercial purposes, as long as you clearly state where you (or I)  found it and who wrote it. It’s called creative commons non commercial sharealike:

Creative Commons License
This work is licensed under a
Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.

  • And where can I reach you?

Contact me