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San Antonio Monthly Reports: February 1983
Compilation of monthly reports from departments in the city of San Antonio, Texas providing statistics, project updates, and other information about services and activities.
Date:
March 1, 1983
Creator:
San Antonio (Tex.)
System:
The Portal to Texas History
International Halley Watch Amateur Observers' Manual for Scientific Comet Studies: Part 1. Methods
Document describing the International Halley Watch, comets and observing techniques, and provides information on periodic Comet Halley's apparition for its 1986 perihelion passage. This is volume one of a two-part document.
Date:
March 1, 1983
Creator:
Edberg, Stephen J.
System:
The Portal to Texas History
International Halley Watch Amateur Observers' Manual for Scientific Comet Studies: Part 2. Ephemeris and Star Charts
Document describing the International Halley Watch, comets and observing techniques, and provides information on periodic Comet Halley's apparition for its 1986 perihelion passage. This is volume two of a two-part document.
Date:
March 1, 1983
Creator:
Edberg, Stephen J.
System:
The Portal to Texas History