page_title: E-type asteroid
hierarchical_section_title: E-type asteroid
caption_attribution_description: English: Asteroid 2867 Šteins was first imaged by ESA's Rosetta spacecraft using the OSIRIS camera on 5 September 2008. Image stacking and processing by amateur astrophotographer Ted Stryk has enhanced the shadows in order to emphasise the difference between bright crater rims and their shadowed floors. However, this technique can also create some artifacts, such as the illusion of boulders protruding from the surface, that are not present in the raw data. In total, over 40 craters have been identified on the surface of Steins, the largest appearing at the ‘top’ of this frame being the 2 km-wide crater named Diamond. Craters on Steins are named after gems, following Stein’s appearance as a diamond shape.
context_page_description: E-type asteroids are asteroids thought to have enstatite achondrite surfaces. They form a large proportion of asteroids inward of the asteroid belt known as Hungaria asteroids, but rapidly become very rare as the asteroid belt proper is entered. There are, however, some that are quite far from the inner edge of the asteroid belt, such as 64 Angelina. They are thought to have originated from the highly reduced mantle of a differentiated asteroid.
context_section_description: E-type asteroids  are asteroids thought to have enstatite (MgSiO₃) achondrite surfaces. They form a large proportion of asteroids inward of the asteroid belt known as Hungaria asteroids, but rapidly become very rare as the asteroid belt proper is entered. There are, however, some that are quite far from the inner edge of the asteroid belt, such as 64 Angelina. They are thought to have originated from the highly reduced mantle of a differentiated asteroid.
caption: E-Type asteroid 2867 Šteins
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