Results 71 to 80 of about 4,059 (221)
Existing cometary data and future needs [PDF]
To assist scientists studying comets and their interaction with the interplanetary medium, compilations of existing cometary observations and data plans for additional publication are reported.
Rahe, J.
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Determination of the observation conditions of celestial bodies with the aid of the DISPO system [PDF]
The interactive system for determining the observation conditions of celestial bodies is described. A system of programs was created containing a part of the DISPO Display Interative System of Orbit Planning.
Kazakov, R. K., Krivov, A. V.
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Observations of Halley's Comet at the Time of its Nearest Approach to the Earth [PDF]
, 1910 E. E. Barnard
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Long slit spectroscopy of NH2 in comets Halley, Wilson, and Nishikawa-Takamizawa-Tago [PDF]
Long-slit spectra of comets Halley, Wilson and Nishikawa-Takamizawa-Tago were obtained with the 3.9 meter Anglo-Australian Telescope. Spectra of comets Halley and Wilson were obtained with the IPCS at a spectral resolution of 0.5 A and a spatial ...
Heyd, Rodney +5 more
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On a Variation in the Intensity of the Penetrating Radiation at the Earth's Surface Observed during the Passage of Halley's Comet [PDF]
, 1911 A. A. Thomson
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Modern techniques for making cometary astrometric observations, reducing these observations, using accurate reference star catalogs, and computing precise orbits and ephemerides are discussed in detail and recommendations and suggestions are given in ...
Harrington, R. S. +3 more
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Investigation of plasma density bulge in front of Venus bow shock [PDF]
Significant ion and electron flux enhancements immediately upstream of the Venus bow shock were observed by the Electron Temperature Probe on the Pioneer Venus Orbiter.
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Halley's Comet and others: the bacterial star shells. [PDF]
J R Soc Med, 1986 Hoyle F.
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Comet Halley returns: A teachers' guide 1985-1986 [PDF]
This booklet has been put together as an aid for teachers in elementary and secondary schools. It is divided into two distinct parts. The first part is a brief tutorial which introduces some of the most important concepts about comets, including their ...
Bondurant, R. L., Chapman, R. D.
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