Astronomy and Space
Delta Canis Majoris is a supergiant star in the constellation of Canis Major. It is formally named Wezen (); Delta Canis Majoris is its Bayer designation. At an apparent magnitude of +1.83, it is the third-brightest star in the constellation. Based on parallax measurements, it is located at a distance of approximately 1,600 light years. Since 1943, the spectrum of this star has served as one of the stable anchor points by which other stars are classified.
Global Observing Satellite for Greenhouse gases and Water cycle.
Atmosphere of Triton.
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