Unnamed Crater with "Hollows" in Caloris Basin (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)

This stunning, and as of yet Unnamed, Crater lies within the Caloris Basin. Its fFoor provides another example of the beautiful "Hollows" found on Mercury and has an etched appearance similar to that found in the Crater Tyagaraja. This image was acquired as a high-resolution targeted observation. Targeted observations are images of a small area on Mercury's Surface at resolutions much higher than the 250-meter/pixel (820 feet/pixel) morphology base map or the 1-kilometer/pixel (0,6 miles/pixel) color base map. It is not possible to cover all of Mercury's Surface at this high resolution during MESSENGER's one-year mission, but several areas of high scientific interest are generally imaged in this mode each week.

Date acquired: October, 28th, 2011
Image Mission Elapsed Time (MET): 228326267
Image ID: 943690
Instrument: Narrow Angle Camera (NAC) of the Mercury Dual Imaging System (MDIS)
Center Latitude: 38,44° North
Center Longitude: 175,6° East
Resolution: 42 meters/pixel
Scale: this Unnamed Crater is approximately 38 Km (about 24 miles) across
Solar Incidence Angle: 76,1° (meaning that the Sun, at the time the picture was taken, was about 13,9° above the Local Horizon)
Emission Angle: 40,0°
Sun-Mercury-MESSENGER (or "Phase") Angle: 116,1°