Observations of the Apollo-12 liquid oxygen cloud with a new type of spectrograph
- 1 November 1971
- journal article
- Published by IOP Publishing in Journal of Physics E: Scientific Instruments
- Vol. 4 (11) , 879-881
- https://doi.org/10.1088/0022-3735/4/11/020
Abstract
The spectrograph described contains a zone plate as a 'transmission- grating lens' and a sieve-plate as a collimator. The instrument was designed for recording the first spectrum from the Apollo-12 liquid oxygen dump on 14 November 1969. The results show a spectrum of emission lines, presumably due to neutral and singly ionized oxygen.Keywords
This publication has 4 references indexed in Scilit:
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- Light scattering by manned spacecraft atmospheresPlanetary and Space Science, 1969
- Optical Method for Producing Fresnel Zone PlatesApplied Optics, 1968
- The optical environment of manned spacecraftPlanetary and Space Science, 1967