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Noun: heliometer  ,hee-lee'ó-mi-tu(r)
  1. An instrument used to measure the angular separation of two stars that are too far apart to be included in the field of view of an ordinary telescope

Derived forms: heliometers

Type of: measuring device, measuring instrument, measuring system

Encyclopedia: Heliometer

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helio-
Heliobacter
heliocentric
heliocentric parallax
heliogram
heliograph
heliographic
heliogravure
heliolatry
heliometer
heliopause
heliophila
heliopsis
Helios
heliosheath
heliosphere
heliostat
heliotherapy
Heliothis
heliothis moth