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#keplerian — Public Fediverse posts

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

  1. Fabrizio Musacchio @[email protected] ·

    🪐 First direct #imaging of a forming #exoplanet carving multiple rings in its accretion disk! Van Capelleveen et al. (2025) reveal a ~5 MJup #protoplanet 57 AU (~8.5 billion km, farther than Pluto) from its star (#WISPIT2, ~133 pc) with #VLT/SPHERE, showing #Keplerian motion and Hα #accretion. A rare, striking view of planet–disk interaction in real time 💫

    🌍 doi.org/10.3847/2041-8213/adf7

    #PlanetFormation #Astrophysics #ALMA #WISPIT2b

    #imaging #exoplanet #protoplanet #wispit2 #vlt #keplerian
  2. dr 🛠️🛰️📡🎧:blobfoxcomputer: @[email protected] ·

    I am still in this rabbit hole, learning a bunch of new #numerical methods.

    What I want at the end is *thrust* acceleration values recovered from satellite position and velocity data given at 1m intervals.

    Any method will obviously also have the acc due to gravity and other effects. Methods will differ in how much numerical "noise" they add to the process.

    Subtracting the Earth is easy with F=ma=GMm/r^2.

    To compare the noise, I'm using a smooth #keplerian element set that has no thrusts.

    #numerical #keplerian