Astronomy and Space
KELT-9b, also designated HD 195689 b, is an exoplanet and ultra-hot Jupiter in a polar orbit around the late B-type/early A-type star KELT-9, located about 670 light-years from Earth. Detected using the Kilodegree Extremely Little Telescope, the discovery of KELT-9b was announced in 2016. As of June 2017, it is the hottest known exoplanet.
Astronomical spectroscopy.
List of CubeSats.
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