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SN 2016aps (also known as PS16aqy and AT2016aps) is the brightest and most energetic supernova explosion ever recorded. [2] [3] It released more energy than ASASSN-15lh. [4]In addition to the sheer amount of energy released, an unusually large amount of the energy was released in the form of radiation, probably due to the interaction of the supernova ejecta and a previously lost gas shell.
This article is a list of notable unsolved problems in astronomy. Problems may be theoretical or experimental. Theoretical problems result from inability of current theories to explain observed phenomena or experimental results. Experimental problems result from inability to test or investigate a proposed theory.
The system lies approximately 79 light years from the Sun. HD 87884 is separated from Regulus by 176 ″ and is itself a close pair. Regulus, along with five slightly dimmer stars ( Zeta Leonis , Mu Leonis , Gamma Leonis , Epsilon Leonis , and Eta Leonis ) have collectively been called 'the Sickle', which is an asterism that marks the head of Leo.
This is a list of exoplanets discovered in 2016. As of 2024, 2016 was the year with the most discoveries of exoplanets. As of 2024, 2016 was the year with the most discoveries of exoplanets. For exoplanets detected only by radial velocity, the mass value is actually a lower limit.
The Astronomical Almanac [1] is an almanac published by the United Kingdom Hydrographic Office; it also includes data supplied by many scientists from around the world.On page vii, the listed major contributors to its various Sections are: H.M Nautical Almanac Office, United Kingdom Hydrographic Office; the Nautical Almanac Office, United States Naval Observatory; the Jet Propulsion Laboratory ...
The Extrasolar Planets Encyclopaedia [9] is an astronomy website, founded in Paris, France at the Meudon Observatory by Jean Schneider in February 1995, [10] [11] which maintains a database of all the currently known and candidate extrasolar planets, with individual "note" pages for each planet and a full list interactive catalog spreadsheet ...
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The radii of these objects range over three orders of magnitude, from planetary-mass objects like dwarf planets and some moons to the planets and the Sun. This list does not include small Solar System bodies , but it does include a sample of possible planetary-mass objects whose shapes have yet to be determined.