Interferometric observations: fringes from two stars of different angular size

Demonstrates in a schematic way, how the images of two stars of different angular size (left) will look like, with a single telescope (middle) and with an interferometer like the VLTI (right). Whereas there is little difference with one telescope, the fringe patterns at the interferometer are quite different. Conversely, the appearance of this pattern provides a measure of the star's angular diameter.

Kredit:

ESO

O snímku

Id:eso0111d
Typ:Koláž
Datum zveřejnění:18. března 2001
Související články:eso0111
Velikost:2940 x 1728 px

O objektu

Jméno:Alphard, Sirius
Typ:Milky Way : Star
Kategorie:Stars

Image Formats

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