Abstract
An objective-prism stellar spectrograph of 15-cm aperture was flown on all three Skylab missions. The 1300 Å to 5000 Ås was covered by a special optical system containing a combination of reflecting telescope optics, a CaF2 objective prism, and an achromatized field corrector lens system of CaF2 and LiF. Observations of 188 star fields, each covering 4.0 × 5.0°, were conducted at the Skylab antisolar airlock with the aid of an articulated mirror system (AMS) which allowed acquisition within 30° × 360° band of the sky.
© 1977 Optical Society of America
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