![](https://nthumb.tpgimages.com/mid2_ocom_img/c2NpZW5jZV9waG90bw==/10/2008041619/top_20080416191151_244.jpg/TOP03224438.jpg)
Artist's impression of the planet Pluto (foreground) the nineth & smallest planet of our solar system & its close satellite (moon) Charon. Discovered in 1930 at the Lowell Observatory by Clyde Tombaugh, Pluto has a 248 year orbit around the sun. The satellite Charon was discovered in 1977 by J. Christy. Some doubt exists whether Pluto should be regarded as a true planet; it might be more appropriate to describe it and Charon as comprising a double asteroid. Pluto is too faint to be observed by small telescopes and no surface details may be seen; spectroscopic data indicates that its surface is covered in a layer of methane ice.
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Details
Creative#:
TOP03224438
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
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