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
English language
Toggle Transcript
heliometer::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Type of | measuring device, measuring instrument, measuring system |
Examples of heliometer
heliometer
The first successful measurements of stellar parallax were made by Friedrich Bessel in 1838 for the star 61 Cygni using a heliometer.
From the en.wikipedia.org
