Skip to main content
planisphere

planisphere

8.6
A circular star chart you turn to show the stars visible on a given date and time
  • noun
  • /ˈplænɪsfɪr/
  • Specialized
translation icon : planisferio
  • Astronomy students often use a planisphere to learn how to identify stars in the night sky.
  • use a planisphere

And then we might do some kind of a project together, like making their own little Planispheres star charts that they could take with them.

Examples

  • The back contains a wealth of information in tabular form, including the approximate right ascension and declination for each constellation, and the magnitude, right ascension, and declination of the bright stars shown on the planisphere.

    Academic text (2005)
  • With the help of a planisphere, you can easily find which constellations are visible on any given night.

  • And then we might do some kind of a project together, like making their own little Planispheres star charts that they could take with them.

  • One such device is the celestial planisphere, which is still used today to locate the relative position of the stars in the sky.

    Academic text (2005)
  • We include constellation finding, a planisphere tutorial, and a primer in the use of binoculars before we go to the telescope.

    Academic text (2000)
  • Or she teaches participants how to navigate the starry night using a planisphere, and then takes them outside so they can use their planispheres and several telescopes to observe sky objects.

    Academic text (2000)
  • The stars and constellations visible in the oral opening are those seen in the sky for latitude 35 degrees north, which is the frame of reference of this planisphere (corresponding to Los Angeles, the location of the Observatory).

    Academic text (2005)
  • PHOTO (COLOR): This planisphere, the Griffith Observatory "Astrorama" ca. 1955, shows the stars and constellations visible from Los Angeles in the oval window at any time of night.

    Academic text (2005)
  • During the stargazing event, each guest received a planisphere to help them locate celestial objects.

Synonyms

star chart
vsplanisphere
6 4.5

A map that shows where stars and other things are in the sky

is adjustable to show visible stars for any date and time
star atlas
vsplanisphere
1 6.6

A book of maps that shows where stars and constellations are in the night sky

is a single circular chart adjustable by date and time
uranometria
vsplanisphere
  • Archaic
9.9

A book of star maps used to study the night sky

is the modern adjustable circular tool rather than a historical book
celestial globe
vsplanisphere
  • Specialized
8.1

A round model of the sky showing stars and constellations

is a flat adjustable chart showing stars for specific dates and times

How Detailed

star atlas
1 6.6
planisphere
  • Specialized
8.6
star chart
6 4.5

Surface Forms

planisphere singular
planispheres plural

Morphology

planisphere = plane + sphere (semi-transparent) = planis + sphere

The morphemes indicate a flattened sphere, but the specific technical meaning (an adjustable star chart) is specialized and not fully inferable by a general learner.

Etymology

Planisphere comes from plane meaning 'flat' and sphere meaning 'globe'. Think of it as a 'flat globe' of the sky that you can set to a date and time, so it shows which stars are visible on any night.