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CP11755933 | On this day in history, Elizabeth became Queen
CP18155753 | Greece is commemorating one of the greatest naval battles in ancient history this year
CP14676260 | This Day in History: the First World War ends
Placeline/People
City
Vaughan
Country
Canada
This day in history: Pluto is discovered
This Day in History: Pluto Is Discovered February 18, 1930. Once believed to be the ninth planet, Pluto was discovered at the Lowell Observatory in Flagstaff, AZ, by
astronomer Clyde W. Tombaugh. Tombaugh discovered the tiny, dwarf planet using a new astronomic technique of photographic plates combined with a blink microscope. Pluto was given the Roman name for the god of the underworld in Greek mythology, due to its surface temperature of -218 ° C. More than six billion kilometres away from the sun, it takes Pluto approximately 248 years to complete one orbit. Pluto's only known moon, Charon, has a diameter of a mere 1186 kilometres. In 2006, it was announced that Pluto would no longer be considered a planet due to the fact that its orbit crosses into the orbit of planet Neptune.
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Information
Source name:
The Canadian Press
Unique identifier:
CP11761876
Legacy Identifier:
c2cbe90a755142d7b6f72a3ef66d6d0a
Type:
Video
Duration:
1m8s
Dimensions:
1920px × 1080px 12.89 MB
Create Date:
2/18/2019 4:33:00 PM
Display aspect ratio:
16:9