Moon--- False Color Mosaic |
Original Caption Released with Image:
This false-color photograph is a composite of 15 images of the Moon taken
through three color filters by Galileo's solid state imaging system during the
spacecraft's passage through the Earth-Moon system on December 8, 1992. When
this view was obtained, the spacecraft was 425,000 kilometers (262,000 miles)
from the Moon and 69,000 kilometers (43,000 miles) from Earth. The false-color
processing used to create this lunar image is helpful for interpreting the
surface soil composition. Areas appearing red generally correspond to the
lunar highlands, while blue to orange shades indicate the ancient volcanic
lava flow of a mare, or lunar sea. Bluer mare areas contain more titanium than
do the orange regions. Mare Tranquillitatis, seen as a deep blue patch on the
right, is richer in titanium than Mare Serenitatis, a slightly smaller
circular area immediately adjacent to the upper left of Mare Tranquillitatis.
Blue and orange areas covering much of the left side of the Moon in this view
represent many separate lava flows in Oceanus Procellarum. The small purple
areas found near the center are pyroclastic deposits formed by explosive
volcanic eruptions. The fresh crater Tycho, with a diameter of 85 kilometers
(53 miles), is prominent at the bottom of the photograph, where part of the
Moon's disk is missing.
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Galileo Solid State Imaging Team Leader: Dr. Michael J. S. Belton
The SSI Education and Public Outreach webpages were originally created and
managed by Matthew Fishburn and Elizabeth Alvarez with significant assistance
from Kelly Bender, Ross Beyer, Detrick Branston, Stephanie Lyons, Eileen Ryan,
and Nalin Samarasinha.
Last updated: September 17, 1999, by Matthew Fishburn
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