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heliometer    
n. 太阳仪

太阳仪

heliometer
n 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


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  • Heliometer - Wikipedia
    A heliometer (from Greek ἥλιος 'sun' and 'measure') is an instrument originally developed from the mid-eighteenth to early nineteenth centuries for measuring the variation of the Sun 's diameter at different seasons of the year, but the modern version of the instrument is capable of much wider use
  • Heliometer | Precision Measurement, Astronomy Optics | Britannica
    Heliometer, astronomical instrument often used to measure the Sun’s diameter and, more generally, angular distances on the sky The heliometer consists of a telescope in which the objective lens is cut along its diameter into two halves that can be moved independently
  • HELIOMETER Definition Meaning - Merriam-Webster
    The meaning of HELIOMETER is a visual telescope that has a divided objective designed for measuring the apparent diameter of the sun but also used for measuring angles between celestial bodies or between points on the moon
  • Heliometer | What is a Heliometer and How Does it Measure the Suns . . .
    A heliometer is an astronomical instrument used to measure the diameter of the Sun with precision It works by splitting the Sun's image into two halves and calculating the angle between them
  • The Heliometer as a Tool for the Measure of the Moon - Springer
    The heliometer has been the only instrument for the measurement of the lunar physical libration for more than a century
  • Heliometer Explained
    A heliometer (from Greek ἥλιος hḗlios "sun" and measure) is an instrument originally designed for measuring the variation of the Sun 's diameter at different season s of the year, but applied now to the modern form of the instrument which is capable of much wider use
  • Heliometer - Encyclopedia
    HELIOMETER (from Gr Oros, sun, and ÆTpov, a measure), an instrument originally designed for measuring the variation of the sun's diameter at different seasons of the year, but applied now to the modern form of the instrument which is capable of much wider use
  • heliometer - Vaporia
    A heliometer is a type of telescope designed specifically for precise measurements of small angles across the sky
  • Heliometer - Academic Dictionaries and Encyclopedias
    Heliometer (from Greek "sun" and "measure") is an instrument originally designed for measuring the variation of the sun 's diameter at different season s of the year, but applied now to the modern form of the instrument which is capable of much wider use
  • Astronomy:Heliometer - HandWiki
    A heliometer (from Greek ἥλιος hḗlios "sun" and measure) is an instrument originally designed for measuring the variation of the Sun 's diameter at different seasons of the year, but applied now to the modern form of the instrument which is capable of much wider use





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