• Question: how many planets are there

    Asked by Yup49hue on 13 Nov 2020.
    • Photo: Marcello Valente

      Marcello Valente answered on 13 Nov 2020:

      It’s an impossible question with our technology at the moment since every couple of month we discover a new one

    • Photo: Mohammed Taj-Eldin

      Mohammed Taj-Eldin answered on 13 Nov 2020: last edited 13 Nov 2020 8:13 pm

      Hi friend,

      The number of discovered planets increases everyday as scientists continue to discover more and more. However, the number of planets discovered so far is 4,301 planets and it is continuously updated. You can check out the following website where NASA updates it as they discover new planets!
      https://exoplanetarchive.ipac.caltech.edu/

      and each planet has a name and you can see when it was discovered in the following page:
      https://exoplanetarchive.ipac.caltech.edu/cgi-bin/TblView/nph-tblView?app=ExoTbls&config=PS&constraint=default_flag=1

    • Photo: Danny Hnatyshin

      Danny Hnatyshin answered on 16 Nov 2020:

      Well the solar system has 8 planets for sure! Pluto doesn’t count anymore 🙁
      There might be some extra ones that are way father away from the sun that we can’t see. There is a hypothetical planet 9 that people think is there base on the orbits of comments.
      From the telescope surveys of the galaxy its probably safe to assume that every star has at least a few planets.

    • Photo: Malgorzata Dabrowska

      Malgorzata Dabrowska answered on 18 Nov 2020:

      It’s not my field of expertise, sorry! For sure we’re finding new plantes constantly but I don’t know the exact number.

Comments

  • Photo: Duncan

    Duncan commented on :

    According to Erik Zackrisson, an astrophysicist at Uppsala University in Sweden, based upon our understanding of the universe and the laws of physics, there should be about
    700,000,000,000,000,000,000