file "Vesta" Proto-Planet / Asteroid Gigapan (Pia19534)

5 years 10 months ago #12801 by Glitch_Neo
Asteroid "Vesta" (Proto-Planet) Gigapan

NASA "Dawn" Framing Camera -- Rheasilvia AV-L-30 (PIA19534) - Full Res Tiff @ 500% :whistle: :unsure:

www.gigapan.com/gigapans/208652

Vesta is unique among asteroids in that it has light and dark patches on the surface, much like the moon. Ground-based observations determined that the asteroid has basaltic regions, meaning that lava once flowed across its surface. It has an irregular shape, roughly that of an oblate spheroid (in nontechnical terms, a somewhat squashed sphere).






Diameter: 329 miles (530 kilometers)
Mass: 5.886 X 1020 lbs. (2.67 x 1020 kilograms)
Temperature: 85 to 255 K (minus 306 to 0 degrees Fahrenheit / minus 188 to minus 18 degrees Celsius)
Rotation period: 5.342 hours
Orbital period: 3.63 years
Eccentricity: .0886
Aphelion: 2.57 AU
Perihelion: 2.15 AU
Closest approach to Earth: 1.14 AU

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