Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994adspr..14...21r&link_type=abstract
Advances in Space Research, vol. 14, no. 6, p. (6)21-(6)31
Astronomy and Astrophysics
Astronomy
Helioseismology, Lunar Bases, Lunar Gravitation, Solar Cycles, Lunar Surface, Remote Sensing, Satellite Observation, Solar Physics, Moon, Space, Utilization, Astronomy, Science Aspects, Helioseismology, Atmosphere, Gravity Effects, Telescopes, Oscillations, Sun, Rotation, Technical Aspects, Interior, Comparison, Moon-Based Observations, Soho Mission, Mission Planning, Equipment, Earth-Based Observations, Golf Instrument, Virgo Instrument, Mdi Instrument, Position (Location), Satellite Observations
Scientific paper
The prospect of a future manned lunar base presents an interesting challenge for helioseismology-a field in which observations have been obtained from the Earth's surface, from near-earth satellites, and from interplanetary spacecraft. Similar observations from the Moon would possess several advantages over those from other sites. Advantages over the Earth would include the absence of the terrestrial atmosphere and the lower lunar surface gravity, both of which would allow for larger-aperture telescopes with which the highest-degree solar oscillations could be studied. Compared with the .99 AU halo orbit of the upcoming Solar and Heliospheric Observatory (SOHO) mission a lunar base would have less-restrictive weight, power, and telemetry restrictions. An instrument there could also be repaired in-place and could be operated for at least one solar cycle. Disadvantages compared to SOHO would include interruptions from the lunar night and during lunar eclipses. Temporal sidelobes of frequency spacing comparable to that due to solar surface rotation would be introduced unless a network of lunar stations were operated. FInally, solar Doppler measurements made from the Moon would have to allow for the orbital velocity of the Moon around the Earth, but this should not pose a problem for such measurements.
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