Arecibo Radar Images of Planets
Radar image of the Maxwell Montes region of Venus
delay-doppler image of the Maxwell
Montes region of Venus, taken using the S-Band (2380 MHz
or 12.6 cm) radar transmitter and the 305m dish at the
Arecibo Observatory in Arecibo, Puerto Rico in June of
1988. The horizontal resolution is about 2 km.
This region is the highest mountain region on Venus (11 km
above the surrounding plain), and it's brightness is
apparently due to chemical processes that only occur at these
high altitudes.
Craters near the pole of Mercury
This delay-doppler radar image shows
craters near the North pole of Mercury. The resolution of
this image is about 15 km.
The latitude-longitude grid was determined by superimposing
several images taken at different times during the summers of
1991 and 1992, and making the crater images match correctly,
accounting for shadowing under the different illuminations of
the images. The larger and smaller circles represent 80 and
85 degrees latitude, respectively.
Mike Nolan
Return to NAIC
HomeLast modified 1997 August 15