How Do You Spell HELIOMETER?

1. A heliometer refers to a scientific instrument designed for measuring the angular separation and diameter of celestial bodies, particularly the Sun or any other celestial object. Primarily used in the field of astronomy, a heliometer aids in accurate distance calculation and other advanced astronomical calculations.

   The main components of a heliometer include a telescope and a movable double-image micrometer, which allows for precise measurements. The telescope's objective lens is responsible for capturing and focusing the light emitted by the celestial body being observed. This focused light is then split into two separate beams that can be seen simultaneously through the eyepiece. The movable double-image micrometer permits the observer to adjust the separation between the two overlapping images, aligning them with the celestial object's edges.

   By making micrometer adjustments to the instrument, the observer can measure the angular size of the celestial body accurately. These angular measurements can then be used in conjunction with known distances, angles, and other astronomical calculations to determine the object's diameter, distance, and other fundamental properties.

   Heliometers were widely utilized during the 19th and early 20th centuries by astronomers seeking to refine their observations and measurements of celestial bodies. However, with the advent of more advanced and automated astronomical instruments and techniques, the usage of heliometers has significantly declined.

2. An instr. for measuring the apparent diameter of any heavenly body-called also an astrometer.

   Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.

Common Misspellings for HELIOMETER

The word "heliometer" is derived from two Greek roots: "helio" meaning "sun", and "metron" meaning "measure". The combination of these roots forms the word heliometer, which refers to a scientific instrument used to measure the angular diameter of the Sun or other celestial objects.

Plural form of HELIOMETER is HELIOMETERS

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