A NASA Discovery mission to conduct the first orbital study
of the innermost planet
NASA logo carnegie institution logo JHU APL logo

Why Mercury?
The Mission
Gallery
Education
News Center
Science Operations
Who We Are
FAQs
Related Links
Contacts
Home

Download iPhone/iPad app Explore orbital data with quickmap Question and Answer Mercury Orbit Insertion Where is MESSENGER? Where is Mercury now? Subscribe to MESSENGER eNews



Starry Hour
Click on image to enlarge.
Starry Hour
Release Date: April 19, 2013
Topics: Named Craters



Instrument: Mercury Dual Imaging System (MDIS)
Center Latitude: -67.0°
Center Longitude: 77.9° E
Basemap Resolution: approximately 250 meters/pixel
Digital Elevation Model: Produced by MESSENGER Participating Scientist Bob Gaskell based on MDIS images
Vertical Exaggeration: 5 times actual
Scale: Alver crater is 151.5 km (94.1 miles) across

Of Interest: Today's image features a perspective view of the Alver crater, recently named for Estonian poet Betti Alver (1906-1989). Alver's husband was imprisoned and died in Siberia after World War II, leading Alver to stop writing poetry for many years in protest of Soviet rule. She resumed writing poetry in the 1960s, composing the notable 1966 collection Tähetund or "Starry Hour."

To create this image, a portion of the MDIS monochrome basemap was draped over a digital elevation model. The topography has been exaggerated by 5 times to accentuate the crater rim and central peak ring. The view is looking towards the southeast. Alver is a complex crater in the southern hemisphere of Mercury. This perspective view highlights the smooth nature of the basin floor relative to the ejecta blanket and surrounding terrain.

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. During the first two years of orbital operations, MESSENGER acquired over 150,000 images and extensive other data sets. MESSENGER is capable of continuing orbital operations until early 2015.

Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington


For information regarding the use of MESSENGER images, see the image use policy.


   

   Top  | Contacts
© 1999-2014 by JHU/APL