Early maps of Mercury

A summary of Mercury mapping, early drawings reprojected uniformly into Mollweide projection. The last map is based on photographic studies in 1942-1948.

mercury1

(Note: This caption wronly identifies Venus as the mapped object. It is Mercury).

 

mercury2
1942-1948 Dollfus, A
1889 Schiaparelli Astr. Nach. 1889 p 246
1897 Lowell Mem. Amer. o Arts and Sciences 1897 v. 12
Desloges, Jarry Observation des surfaces planétaires, v VII
1934 Antoniadi La planete Mercure, Gauther-Villars
1928 Rudaux L’Astronomie de 1928, p301
1928 Bidault de l’Isle L’Astronomie de 1928, p 301
1936 McEwen Journal de la British Astronomical Society 1936, v45, p582
Source: Dollfus, A. 1953 Observation visuelle et photographique des planètes Mercure et Vénus à l’Observatoire du Pic du Midi. L’Astronomie, Vol. 67, p.61

 

 

Barabashev’s drawing of Mars

barabasev

Reproduced in Kulin-Zerinváry: A távcső világa. Budapest, 1958.

Courtesy of I. Almar

 

” In the 1920-1926 yrs. with the help of a 270-millimeter reflector NP Barabashov conducted a large number of visual observations of Mars in different spectral ranges, the result of which was the compilation of a map of the planet’s surface.” (Wikipedia, Russian version)

 

Pic du Midi drawings and map of Mercury

Upper row: 1942, Lyot – 25 drawings, 36 inch refractor, 300-500x magnification.

Lower row: 1950, A Dollfus, 60-inch refractor, 750-900x magnification

picdumidi-mercury2picdumidi-mercury

Lyot and Camichel, 1942:  Map from 12 composites. 23 markings were measured.

Source: A. Dollfus: Visual and photographic studies off planets at the Pic du Midi. In: Planets and Satellites, GP Kuiper and B Middlehurst, eds. Chicago Univ Press 543-571.