The white penitents*

These bizarre snow and ice formations, called "penitentes", form in high-altitude regions such as the Chajnantor plain, close to where the ALMA array will be located.

These are ice blades produced by the competition between sublimation and melting of the snow. At Chajnantor at the summer solstice, the Sun is close to the zenith at noon, and penitents are vertical. This image was taken in December 2005.

This image is available as a mounted image in the ESOshop

Crediti:

ESO

A proposito dell'immagine

Identificazione:img-1513
Tipo:Fotografico
Data di pubblicazione:Giovedì 03 Dicembre 2009 23:18
Dimensione:4368 x 2912 px

A proposito delll'oggetto

Nome:Atacama Desert
Tipo:Solar System : Planet : Type : Terrestrial
Categoria:ALMA

Mounted Image

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