A globe is a spherical model of Earth, of some other celestial body, or of the celestial sphere. Globes serve purposes similar to maps, but unlike maps, they do not distort the surface that they ...

Big science has always needed big patronage, from rulers, rich aristocrats or state organizations. A striking example is the huge armillary sphere by the sixteenth-century astronomer Antonio Santucci.

The celestial sphere is bisected by the celestial equator. Sigma Octantis occupies a position analogous to Polaris in the southern celestial hemisphere. Sigma Octantis' low luminosity renders it ...

A 3D model of a celestial object, resembling a planet, composed of red and blue dots. The image evokes a visually captivating and intricate cosmic design Royalty-free licenses let you pay once to use ...

Astronomers can map the sky in many ways: observing in different regions of the elecromagnetic specrum, obtaining specra of stars and galaxies to determine their physical properties and distances, and ...

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