Wikidata facts
- Instance of
- human
- Given name
- Johann
- Gender
- male
- Citizenship
- Germany
- Place of death
- Monfalcone
- Occupation
- astronomer
- Languages spoken
- German
Show 2 more facts
- date of birth
- 1930-01-01
- date of death
- 2007-01-10
via Wikidata · CC0
via Wikidata · CC0