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Q&A If planet 9 exists, is it correct to say that it is a "dark planet"?

If planet 9 exists, is it correct to say that it is a "dark planet"? By "dark" here I mean to a planet that doesn't reflect enough light to easily be seen from normal telescopes (in the current co...

2 answers  ·  posted 3y ago by deleted user  ·  last activity 3y ago by HDE 226868‭

#3: Post edited by (deleted user) · 2021-04-21T10:46:02Z (over 3 years ago)
  • If planet 9 exists, is it correct to say that it is a "dark planet"?
  • By "dark" here I mean to a planet that doesn't reflect enough light to easily be seen from normal telescopes (in the current common telescope technologies of 2021 which I am not familiar with) ; it would just appear in any such telescope so dark to be "swollen" in the dark void, so it just might be very hard to watch it with a telescope
  • I would assume that it is indeed a "dark planet" by that definition because I don't think that what makes us humans having hard time to directly watch it short-scale telescopes is all the objects that screening it, rather, the vast proximity of it from the sun which should make it so dark so to be a too dark spot in a dark background and thus a "dark planet" in the similar way to how sunless galaxies would be considered "dark galaxies".
  • If planet 9 exists, is it correct to say that it is a "dark planet"?
  • By "dark" here I mean to a planet that doesn't reflect enough light to easily be seen from normal telescopes (in the current common telescope technologies of 2021 which I am not familiar with) ; it would just appear in any such telescope so dark to be "swollen" in the dark void, so it just might be very hard to watch it with such a telescope
  • I would assume that it is indeed a "dark planet" by that definition because I don't think that what makes us humans having hard time to directly watch it short-scale telescopes is all the objects that screening it, rather, the vast proximity of it from the sun which should make it so dark so to be a too dark spot in a dark background and thus a "dark planet" in the similar way to how sunless galaxies would be considered "dark galaxies".
#2: Post edited by (deleted user) · 2021-04-18T02:17:28Z (over 3 years ago)
  • If planet 9 exists, is it correct to say that it is a "dark planet"?
  • I would assume so, because I don't think that what makes us humans having hard time to directly watch it short-scale telescopes is all the objects that screening it, rather, the vast proximity of it from the sun which should make it so dark so to be a too dark spot in a dark background and thus a "dark planet" in the similar way to how sunless galaxies would be considered "dark galaxies".
  • If planet 9 exists, is it correct to say that it is a "dark planet"?
  • By "dark" here I mean to a planet that doesn't reflect enough light to easily be seen from normal telescopes (in the current common telescope technologies of 2021 which I am not familiar with) ; it would just appear in any such telescope so dark to be "swollen" in the dark void, so it just might be very hard to watch it with a telescope
  • I would assume that it is indeed a "dark planet" by that definition because I don't think that what makes us humans having hard time to directly watch it short-scale telescopes is all the objects that screening it, rather, the vast proximity of it from the sun which should make it so dark so to be a too dark spot in a dark background and thus a "dark planet" in the similar way to how sunless galaxies would be considered "dark galaxies".
#1: Initial revision by (deleted user) · 2021-04-16T05:20:20Z (over 3 years ago)
If planet 9 exists, is it correct to say that it is a "dark planet"?
If planet 9 exists, is it correct to say that it is a "dark planet"?

I would assume so, because I don't think that what makes us humans having hard time to directly watch it short-scale telescopes is all the objects that screening it, rather, the vast proximity of it from the sun which should make it so dark so to be a too dark spot in a dark background and thus a "dark planet" in the similar way to how sunless galaxies would be considered "dark galaxies".