Design and performance of a 39cm balloon-borne telescope

Details Design and performance of a 39cm balloon-borne telescope Design and performance of a 39cm balloon-borne telescope

Nov 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974tsbb.nasa...58t&link_type=abstract

In NASA. Ames Res. Center Telescope Systems for Balloon-Borne Res. p 58-70 (SEE N75-12735 03-74)

Astronomy and Astrophysics

Astronomy

Balloon-Borne Instruments, High Altitude Balloons, Stabilized Platforms, Star Trackers, Telescopes, Astronomy, Mechanical Devices, Optical Equipment, Remote Control

Scientific paper

A system for stabilizing a balloon-borne telescope using a star sensor device is described. Guide stars from minus four to plus four magnitude can be used and the sensor may be offset with respect to the telescope by as much as plus or minus five degrees in elevation and cross elevation to enable parts of the sky containing no suitable guide stars to be viewed. Acquisition of the guide star and setting of the offset coordinates is carried out by ground command and both may be changed in flight. The main design parameters of the equipment are summarized. Block diagrams and circuit diagrams of the star tracker are provided.

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