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A comment on Stars may collide in a “red nova” in 2022. Parent comment

Re:Stars may collide in a “red nova” in 2022 by kordless on Sunday January 08, 2017 @05:12PM (#13352367)
That nova was in another galaxy, albeit a close one. The one we're talking about here is about 1-2K light years away.
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Re:Stars may collide in a “red nova” in 2022 by schoen on Sunday January 08, 2017 @10:56PM (#13353888)
Great point, thanks!

Wikipedia says KIC 9832227 is "almost 1800 light years away" while SN 1987a is "167885 ly" from us. There should be an inverse square relationship for the intensity of light reaching us by our distance from the object, so light from this nova should be

  You have: (167885 ly / 1800 ly)^2
  You want: 
          Definition: 8699.1893
times brighter than that from SN 1987a due to proximity (which would still be much dimmer than the full Moon). However, the expected nova is also far dimmer to begin with:

https://en.wikipedia.org/wiki/Luminous_red_nova#Characterist...

"The luminosity of the explosion occurring in luminous red novae is between that of a supernova (which is brighter) and a nova (dimmer)."

So I'm still going to say "safe to observe with a telescope".

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