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.

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ESO

O zdjęciu

Identyfikator:eso0111d
Typ:Kolaż
Data publikacji:18 marca 2001
Powiązane komunikaty:eso0111
Rozmiar:2940 x 1728 px

O obiekcie

Nazwa:Alphard, Sirius
Typ:Milky Way : Star
Kategoria:Stars

Formaty zdjęć

Wielki JPEG
296,6 KB