analemma

noun /ˌæn.əˈlɛm.ə/

1. A figure-eight curve that results when the Sun's position in the sky is plotted out over the year at the same hour of mean solar time every day.

   People commonly encounter the equation of time in a strangely distorted figure 8, the analemma (Figure 6.5), frequently seen on terrestrial globes. The analemma is the equation of time plotted against the Sun's declination.

Where it comes from

From Ancient Greek ἀνάλημμα (análēmma, “pedestal of a sundial”).

Adapted from the Wiktionary entry analemma (CC BY-SA 4.0).

← anagnorisisanancasm →

Another random word More words starting with A