AO CassiopeiaeOne of the biggest known double systems is known as well as Pearce's Star. It consists of two blue stars.The stars are so big and their seperation is so small that they touch each other. Once the A star starts to expand to a red supergiant, star B will swallow its hull. Constellation: Cassiopeia Distance: 7000 light-years Visual magnitude: 6.10 Orbit period of AO Cassiopeiae A and B: 3.5 days
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Graphic: Nasa Astrophysical Journal, Part 1. vol. 223. July 1 Schneider, D. P.; Leung, K.-C. |
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