_{(Last updated 2018-08-28.)}

I am mostly interested in making scientifically important observations, like timing occultations of or by Solar System bodies and measuring variable stars.

I am also interested in citizen science projects and participate in some of them, like Galaxy Zoo.

I have been an amateur astronomer since 1975 and have worked at the European Space agency's (ESA) technical centre in Holland, ESTEC, on the ARISTOTELES mission, an earth gravity mapping mission.

Approximate coordinates: 55°20 N, 10°20 E

Shortcuts:

• List of astronomy acronyms

My other accounts:

Stack Overflow (SO). [/].

Server Fault (SF). [/].

Super User (SU). [/].

Meta Stack Overflow (MSO). [/].

Careers. [/].

Other

My 15 minutes of fame on Super User

Blog. Sample: Jump the shark.

LinkedIn profile

@PeterMortensen (Twitter)

Google profile

Quora profile

GitHub profile

Full jump page with other SOFU related, Stack Exchange sites, etc.

Contact

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