Analysis of information sources in references of the Wikipedia article "Pluto" in Romanian language version.
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It could tell from the passage of sunlight and radiowaves through the Plutonian "air" that the pressure was only about 10 microbars at the surface
In a Lowell Observatory Circular dated May 1, 1930, the Observatory designated Pluto as the name for the new planet, based on the suggestion of 11-year-old Venetia Burney of England.
For a long time, it was thought that the mass of Pluto was similar to that of Earth, so that it was classed as a fifth terrestrial planet, somehow misplaced in the far outer reaches of the solar system. There were other anomalies, however, as Pluto's orbit was more eccentric and inclined to the plane of our solar system than that of any other planet. Only after the discovery of its moon Charon in 1978 could the mass of Pluto be measured, and it turned out to be far less than the mass of Earth.
<ref> tag with name "Buie_web_map" defined in <references> group "" has no content.In a Lowell Observatory Circular dated May 1, 1930, the Observatory designated Pluto as the name for the new planet, based on the suggestion of 11-year-old Venetia Burney of England.
<ref> tag with name "Buie_web_map" defined in <references> group "" has no content.