[DOC] [TLE] Clyde Tombaugh: Astronomer Who Discovered Pluto - Space.com [PAR] Feb 15, 2013 ... When Clyde Tombaugh built his first telescope at the age of 20, he could not 
have known it was ... on a path that would eventually lead to the discovery of the 
first known dwarf planet, Pluto. ... On Feb. 18, 1930, Tombaugh noticed 
movement across the field of a pair of images taken a month beforehand. [DOC] [TLE] Clyde Tombaugh - Wikipedia [PAR] Clyde William Tombaugh was an American astronomer. He discovered Pluto in 
1930, the first object to be discovered in what would later be identified as the 
Kuiper belt. At the time of discovery, Pluto was considered a planet but was later 
... He discovered hundreds of asteroids, beginning with 2839 Annette in 1929, 
mostly... [DOC] [TLE] Clyde W. Tombaugh, 90, Discoverer of Pluto - The New York Times [PAR] Jan 20, 1997 ... Mr. Tombaugh was 24 years old at the time of his discovery, not far removed ... by 
the astronomer Percival Lowell in 1905, before Mr. Tombaugh was born. ... which 
contained 50,000 to 900,000 specklike images of stars, using a ... On Feb. 18, 
1930, while examining two plates he had taken six days apart... [DOC] [TLE] This Month in Physics History - American Physical Society [PAR] March 13, 1930: Clyde Tombaugh's discovery of Pluto announced. ... The device 
would present him with sections of the two photo plates to be ... criteria for Planet 
X. Finally, in February 1930, while scanning the plates he had taken a few ... He 
died in 1997, mercifully before the demotion of his planet to the status of a dwarf. [DOC] [TLE] Clyde Tombaugh - Kansapedia - Kansas Historical Society [PAR] Photograph of Clyde Tombaugh with telescope ... Late in the afternoon on 
February 18, 1930, the 24-year-old Tombaugh was gazing into the eyepiece of a
... [DOC] [TLE] Planetary Man | KU History [PAR] And, to date, only one has enrolled at KU after discovering a planet. His name 
was Clyde Tombaugh, a 24-year-old amateur astronomer from Burdett, Kansas, 
... identified Pluto as the ninth planet in our solar system on February 18, 1930. ... 
nearly 1,000 images were made over a large area of the night sky with a 
telescope... [DOC] [TLE] This date in science: Clyde Tombaugh, discoverer of Pluto - EarthSky [PAR] Feb 4, 2016 ... Clyde W. Tombaugh at his family's farm with his homemade telescope in 1928, 
two ... He discovered Pluto a year later, on February 18, 1930. [DOC] [TLE] Pluto discovered - Feb 18, 1930 - HISTORY.com [PAR] On February 18, 1930, Tombaugh discovered the tiny, distant planet by use of a 
new ... After its discovery, some astronomers questioned whether Pluto had .... 
Charge at the 1863 Battle of Gettysburg, Pennsylvania,where he was mortally 
wounded. ... The blaze engulfed the six-car train, before spreading to another 
train that... [DOC] [TLE] Who Was Clyde Tombaugh? - Unitarian Universalist Church of Las ... [PAR] In 1930, Clyde Tombaugh discovered what some astronomers had declared ... 
Percival Lowell, had predicted a planet beyond Neptune, but his search was cut 
short by his death in 1916. ... On February 18, 1930, he found a tiny dot, orbiting 
very close to Lowell's prediction, on a pair of photos he had taken in January. [DOC] [TLE] February 18 1930 - Clyde Tombaugh Discovers Pluto - On this day ... [PAR] On 18 February Clyde Tombaugh Discovers Pluto. ... Once the proper million-
dollar donation was restored, it took a further three years for the search for Planet 
X... [DOC] [TLE] Requiem for a Planet: Pluto - Museum of Unnatural Mystery [PAR] To understand why Pluto isn't a planet,

Question: Using photos he had taken the month before, Clyde Tombaugh discovered this planet February 18, 1930
Answer: Pluto