An extract from a letter of the Rev. Mr. John Hellins : formerly assistant to Mr.
(now Dr.) Maskelyne, the Astronomer-Royal at Greenwich Observatory, to Francis Maseres,
Esq. Dated Potter's Pury, near Stoney Stratford, in Buckinghamshire, Sept. 25, 1792
/ Hellins, John, 2009 (1792)
Internet, https://www.wikidata.org/wiki/Q6238574, 2020-12-03
Information trouvée : John Hellins (1949-1827), astronome britannique