Observing the Universe | Young Education

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S

A model that represents objects using proportional sizes or distances.

A way of writing very large or very small numbers using powers of ten.

The Sun and all the objects that orbit it.

A telescope that operates above Earth's atmosphere.

A bright or dark line at a specific wavelength in a spectrum.

The study of the interaction between matter and electromagnetic radiation, especially through the analysis of spectra.

The range of wavelengths produced when light is separated into its component colours.

The apparent shift in the position of a nearby star caused by Earth's orbit around the Sun.