NGC 743 (also known as C 0155+599) is a small open cluster located in the Cassiopeia constellation. It was discovered by 19th century English astronomer John Herschel on 29 September 1829 and has a visual magnitude of 10.58, and is moving towards the Sun with a radial velocity of -18.16 km/s. It is located approximately 3812.76 light years, (1169 pc), from the Earth.
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