Red dwarf binary, Gliese 623A & B

Red dwarf binary, Gliese 623A & B

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Caption: Red dwarf star. Hubble Space Telescope (HST) image of the double star system Gliese 623. The primary member of the system, Gliese 623a, is the bright object at centre. The smaller bright spot to the right of this is the secondary star, Gliese 623b. This is a red dwarf star, and is one of the smallest stars in our galaxy. Its mass is about 10% of our own Sun, and shines some 60,000 times fainter. The separation between these two stars is about 320 million kilometres, and the orbital period is about four years. Gliese 623 is some 25 light years away from Earth in the direction of the constellation Hercules.

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Keywords: astronomy, binary, binary star, binary system, cosmology, gl623, gl623 star system, gl623b, gliese 632b, hubble, post repair, red dwarf, red dwarf star, science, smallest in galaxy, star, stellar

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