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Observing Stars (a Level Physics/astrophysics)Essay title: Observing Stars (a Level Physics/astrophysics)MCW U6 PH3Kate KnightsSummer 2000Observing StarsOur view of the sky at night is possible because of the emission and reflection of light. Light is the better-known term for the electromagnetic spectrum, which includes waves in the visible, ultra-violet, infra-red, microwave, radio, X-ray and gamma-ray regions..