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Keplerian

Keplerian

9.6
A telescope design that uses two curved lenses and makes an upside down image
  • adjective
  • /ˌkɛpˈlɪəriən/
  • Specialized
translation icon : kepleriano
  • The observatory features a large Keplerian telescope for public viewing of the planets.

Examples

  • Look at that Keplerian telescope!

  • Early astronomers preferred the Keplerian design for its wider field of view.

  • A Keplerian telescope produces an inverted image, unlike the Galilean type.

  • The Keplerian telescope offers a unique viewing experience.

  • Many astronomers prefer Keplerian telescopes for their clarity and ease of use.

  • The Keplerian design allows for a more compact telescope without sacrificing image quality.

  • Amateur stargazers often choose Keplerian telescopes to observe celestial events.

How Advanced

astronomy satellite
  • Specialized
5.1
reflecting telescope
  • Specialized
1 5.5
Keplerian
  • Specialized
9.6
Galilean telescope
  • Archaic
8.8
spyglass
5 7.6

Surface Forms

Keplerian positive

Morphology

Keplerian = Kepler (semi-transparent) = Kepler + ian

Derived from the proper name Kepler plus '-ian'; the morphological formation is clear but the specific technical telescope sense requires subject knowledge.

Etymology

Keplerian comes from the name Kepler, because Kepler also described a telescope design that uses two outward-curving lenses. So a Keplerian telescope is 'in Kepler's design' and usually makes the image look 'upside-down'.