This image, taken with the Narrow Angle Camera (NAC), shows the crater Eminescu. Named for the nineteenth century Romanian poet Mihai Eminescu, Eminescu displays bright hollows at its center. These shallow, irregular depressions were a surprising find in MESSENGER high-resolution images, and the possible causes of their formation are still being studied.

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: January 03, 2012
Image Mission Elapsed Time (MET): 234069368
Image ID: 1218106
Instrument: Wide Angle Camera (WAC) of the Mercury Dual Imaging System (MDIS)
WAC filter: 4 (558 nanometers)
Center Latitude: 10.29°
Center Longitude: 113.9° E
Resolution: 469 meters/pixel
Scale: Eminescu crater is about 130 km (80 miles) in diameter.
Incidence Angle: 26.5°
Emission Angle: 23.6°
Phase Angle: 50.2°

The MESSENGER spacecraft is the first ever to orbit the planet Mercury, and the spacecraft's seven scientific instruments and radio science investigation are unraveling the history and evolution of the Solar System's innermost planet. Visit the Why Mercury? section of this website to learn more about the key science questions that the MESSENGER mission is addressing. During the one-year primary mission, MDIS is scheduled to acquire more than 75,000 images in support of MESSENGER's science goals.

These images are from MESSENGER, a NASA Discovery mission to conduct the first orbital study of the innermost planet, Mercury. For information regarding the use of images, see the MESSENGER image use policy.