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#internationalastronomicalunion — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #internationalastronomicalunion, aggregated by home.social.

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  1. ‘Make Pluto a planet again’: Nasa Administrator Jared Isaacman calls for status restoration at US Senate hearing

    Jared Isaacman (Image/AP) Nasa Administrator Jared Isaacman has reiterated his support for restoring Pluto’s status as a planet.Speaking…
    #NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Science #InternationalAstronomicalUnion #NASAAdministratorJaredIsaacman #NewHorizonsspacecraft #Plutoplanetstatus #Plutoreclassificationdebate
    newsbeep.com/us/616190/

  2. NASA Chief Jared Isaacman wants Pluto back as a planet: New review reopens debate over the 2006 decision |

    NASA’s top leadership has sparked fresh debate about Pluto’s status in the solar system. Jared Isaacman, the current…
    #NewsBeep #News #Space #AU #Australia #InternationalAstronomicalUnion #JaredIsaacmanNASA #NASANewHorizons #Plutoplanetstatus #Plutoreclassification #Science #scientificdebatePluto
    newsbeep.com/au/638110/

  3. Dear geodesists, astronomers, and astrophysicists: Does any of you know of some publication that explicitly reports the expression for the metric in a Geocentric Terrestrial Reference System (GTRS) or in the more specific International Terrestrial Reference System (ITRS)?

    Various publications (eg doi.org/10.1086/378162) and textbooks (eg doi.org/10.1017/CBO97811395074) report and discuss the metrics for the Geocentric Celestial Reference System (GCRS), but not for the GTRS. (Even though it seems to me that the expression should be formally identical, as the off-diagonal timelike components take care of rotation).

    Cheers! (Sorry for spamming borderline hashtags.)

    #iau #geodesy #astronomy #physics #generalrelativity #astrophysics #internationalastronomicalunion

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