Astronomy Picture of the Day
January 9, 2014

Features of Lada Terra
Features of Lada Terra

NASA/JPL - Magellan Mission - Credits for the Additional Process. and Color.: Dr Paolo C. FIENGA/LXTT/IPF

Today's APOD is a NASA - Magellan Spacecraft's Radar Image-Mosaic of a Region of the Planet Venus that is centered at 51° South Latitude and 21° East Longitude. Each pixel (---> or "Picture Element"), represents - roughly - 225 meters. The scene is approximately 200 Km (such as a little more than 124 miles) wide, from East to West, and about 160 Km (such as approx. 99,36 miles) from North to South.


Running from West to East, all the way across the center of the image-mosaic, we can see part of an approx. 1200 Km (such as about 745,2 miles) long, and approx. 20 Km (such as about 12,42 miles) wide, Lava Channel that is located in the Lada Terra Region of Venus. Numerous Streamlined Structures which are found within the Channel attest to the very high temperatures existing at the Datum (---> Zero Altitude) of Venus, as well as the very fluid Lavas (resulting in both Thermal and Mechanical Erosion) that were responsible for carving the Channel itself.


This frame (which is an Original NASA - Magellan Spacecraft Radio-Image-Mosaic published on the NASA - Planetary Photojournal with the n. PIA 00219), since it is just a Radio-Image of the Venusian Surface and NOT a real view of it, has been colorized, according to an educated guess carried out by Dr Paolo C. Fienga (LXTT-IPF), in what they could reasonably be its possible Absolute Natural Colors (such as the colors that a human eye would perceive if someone were onboard the NASA - Magellan Spacecraft and, once the thick layer of Venusian Clouds and Fogs is completely overcome, looked down, towards the Surface of Venus itself), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.



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