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Proceedings Paper

Optical design for DIVA
Author(s): Walter Seifert; Holger Mandel; Stefan J. Wagner; Ulrich Bastian; Siegfried Roeser
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Paper Abstract

DIVA (deutsches interferometer fuer vielkanalphotometrie und astrometrie) is a project of a small satellite, aiming to measure positions, proper motions, parallaxes and spectra of several million stars. DIVA will carry two Fizea interferometers with a baseline of 100 mm using a novel telescope design. It consists of a Gregory configuration with high secondary magnification and a four-component field lens system at the intermediate focus. We present the optical layout which allows diffraction-limited imaging over a 0.5 degree of view in the wavelength range 400-1000 nm. Critical aspects of the design are discussed. The present status of the project is briefly outlined.

Paper Details

Date Published: 28 August 1998
PDF: 6 pages
Proc. SPIE 3356, Space Telescopes and Instruments V, (28 August 1998); doi: 10.1117/12.324447
Show Author Affiliations
Walter Seifert, Landessternwarte Heidelberg (Germany)
Holger Mandel, Landessternwarte Heidelberg (Germany)
Stefan J. Wagner, Landessternwarte Heidelberg (Germany)
Ulrich Bastian, Astronomisches Rechen-Institut (Germany)
Siegfried Roeser, Astronomisches Rechen-Institut (Germany)


Published in SPIE Proceedings Vol. 3356:
Space Telescopes and Instruments V
Pierre Y. Bely; James B. Breckinridge, Editor(s)

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