Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...201..613h&link_type=abstract
Astrophysical Journal, vol. 201, Nov. 1, 1975, pt. 1, p. 613-623.
Astronomy and Astrophysics
Astronomy
37
Apollo 17 Flight, Early Stars, Hot Stars, Spaceborne Astronomy, Stellar Spectra, Ultraviolet Spectroscopy, Lunar Exploration, Spectral Resolution, Stellar Atmospheres, Stellar Luminosity
Scientific paper
Low-resolution ultraviolet spectra were obtained for six early-type stars in 1972 December, using an Ebert spectrometer mounted in the service module of the Apollo 17 spacecraft. The spectrometer scanned from 1180 A to 1680 A, with a speed that varied with wavelength according to a program chosen for lunar studies. Spectral resolution was 11 A. The ultraviolet absolute calibration of the instrument was determined by comparison with National Bureau of Standards calibrated photodiodes, and is believed known to plus or minus 10 percent. The absolute intensities are in good general agreement with the observations of other stars and with the predictions of stellar model-atmosphere calculations.
Fastie William G.
Feldman Paul D.
Henry Richard C.
Moos Warren H.
Weinstein Alan
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