Letter, 'Description of a fiery meteor seen at Danzig' from Johannes Hevelius to to Henry Oldenburg A short letter from Johannes Hevelius to Henry Oldenburg with a drawing on the back describing the observations of a fiery meteor as observed at Gdansk on 13 April 1671. The observations were not done by Hevelius, but by 'a friend, who saw it himself'. Subject: Astronomy / Meteorology 1671