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.

Crédito:

ESO

Sobre la imagen

Identificador:eso0111d
Tipo:Collage
Fecha de publicación:18 de Marzo de 2001
Noticias relacionadas:eso0111
Tamaño:2940 x 1728 px

Sobre el objeto

Nombre:Alphard, Sirius
Tipo:Milky Way : Star
Categoría:Stars

Formatos de imagen

JPEG grande
296,6 KB