Clyde Tombaugh Autograph

Clyde Tombaugh was an American astronomer who became famous for his discovery of the dwarf planet Pluto. Tombaugh was born on February 4th, 1906, in Streator, Illinois. He demonstrated a keen interest in astronomy from an early age, and he spent much of his free time building telescopes and studying the night sky. After completing high school, Tombaugh enrolled at the University of Kansas, where he earned his Bachelor of Science degree in Astronomy. More about Clyde Tombaugh

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Current items with a signature of Clyde Tombaugh

These are the most current items with a signature of Clyde Tombaugh that were listed on eBay and on other online stores - click here for more items.

Picture Item Title Price Store
thumbnailClyde Tombaugh Psa Signed Pluto Card Signed July 12 1985$145.00logo
thumbnailSIGNED Clyde Tombaugh Prominent Astronomer Discovered Pluto Index Card 11/20/64$149.90logo
In 1929, Tombaugh was hired by the Lowell Observatory in Flagstaff, Arizona, to help search for a ninth planet that was believed to exist in our solar system. Tombaugh spent countless hours scanning photographic plates using a blink comparator, a device that enables a viewer to rapidly switch between two images of the same area of the sky taken at different times. On February 18th, 1930, Tombaugh discovered a small, faint object that was later confirmed to be Pluto. This discovery made Tombaugh famous and earned him awards and recognition from around the world. Tombaugh continued his work at the Lowell Observatory for several years, and he also conducted research at several other institutions, including New Mexico State University and the White Sands Missile Range.

In addition to his discovery of Pluto, Tombaugh also made important contributions to our understanding of the outer solar system. He conducted studies of Mars, Jupiter, and other planets, and he developed new methods for measuring distance and brightness of celestial objects. Tombaugh was a veteran of the United States Army, and he also served as a science educator, sharing his passion for astronomy with countless students and the general public. Tombaugh's legacy continues to inspire and educate future generations of scientists and explorers, and he remains one of the most important figures in the history of space exploration. Read even more about Clyde Tombaugh at Wikipedia

Traded items with a signature of Clyde Tombaugh

In total, we tracked 69 items since 01/01/2008. The chart below shows the trade volume over time.

The most expensive item with a signature of Clyde Tombaugh (Clyde Tombaugh Autographed Signed Letter American Astronomer Discovered Pluto FP) was sold in August 2017 for $500.00 while the cheapest item (Clyde Tombaugh : Astronomer Signature on Album Page) found a new owner for $0.99 in April 2014. The month with the most items sold (3) was February 2014 with an average selling price of $40.00 for an autographed item of Clyde Tombaugh. Sold items reached their highest average selling price in March 2015 with $279.00 and the month that saw the lowest prices with $3.25 was October 2014. In average, an autographed item from Clyde Tombaugh is worth $24.50.

Most recently, these items with a signature of Clyde Tombaugh were sold on eBay - click here for more items.

Picture Item Title Price Store
thumbnailAstronomer CLYDE TOMBAUGH signed Einstein first day cover - discovered PLUTO $16.50logo
thumbnailClyde Tombaugh - Astronomer who Discovered Pluto - Signed First Day Cover$27.00logo
thumbnailClyde Tombaugh - Astronomer, Discovered Pluto - Signed Custom Postal Cover $41.99logo
thumbnailClyde Tombaugh Discoverer of Pluto signed index card$24.95logo
thumbnailClyde Tombaugh Prominent Astronomer Discovered Pluto 1930 Signed Card$65.00logo
thumbnailClyde Tombaugh Prominent Astronomer Discovered Pluto Signed Card$65.00logo
thumbnailClyde Tombaugh Signed Card Discoverer Of Pluto$9.99logo
thumbnailCLYDE TOMBAUGH signed cover astronomer discovered planet Pluto $34.99logo
thumbnailClyde Tombaugh Signed Cover Discoverer Of Pluto$9.99logo