(a) Morning star -3 Venus
Venus is seen just before sunrise during the time when planet is west of sun, that is why is called as morning star.
(b) The Great Bear -4 Constellation
Constellations are group of stars that make an imaginary shape in the night sky
(c) IRS -5 Artificial satellite
Artificial satellite is a man made device that revolves around planet in a fixed orbit(path).
(d) Asteroids -2 Between Mars and Jupiter
Asteroid is small rocky body revolving around sun in fixed orbit(path). Large no. of these Asteroids are found between the orbits of mars and Jupiter.
(e) Halley's comet -6 76 years
Halley's comet is probably the most well known of all the comets. It approaches the sun every 75-76 years.
(f) Rotation of the moon -1-27.3 days
Moon takes approximately 27 days to rotate once on its axis
(The axis is an Fixed imaginary line passing from center of moon or planet)
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