Gliese 667 CC

The two brightest stars in this system, GJ 667 A and GJ 667 B, are orbiting each other at an average angular separation of 1. 81 arcseconds with a high eccentricity of 0. 58. At the estimated distance of this system, this is equivalent to a physical separation of about 12. 6 AU, or nearly 13 times […]

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Planet Jupiter Hubble

Jupiter is primarily composed of hydrogen with a quarter of its mass being helium, though helium comprises only about a tenth of the number of molecules. It may also have a rocky core of heavier elements, but like the other giant planets, Jupiter lacks a well-defined solid surface. Because of its rapid rotation, the planet’s […]

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