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Theta-1 Orionis C

The young and big blue star is the brightest star of the famous Trapezium in the Orion Nebula. The three other stars, A, B and D, have about 10 solar masses and are much dimmer.

Constellation: Orion
Age: circa 1.2 million years
Distance: 1400 light-years
Spectral class: O6
Visual magnitude: 5.1
Luminosity: 210 000 * Sun
Mass: 40 * Sun

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    Theta-1 Orionis C
Photo: Nasa

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