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Questions on our Stellar Neighborhood (100 LY Dia of Sol)
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I have studied astronomy for over 40 years (Arm Chair Astronomer and Sky Watcher). I took 3 semesters of Astronomy when I received my BS degree ages ago. So I have always been curious and interested in Space and Astronomy. My dream job would have been to go into Astronomy or Astrophysics.
My questions are about the local stellar neighborhood. I would appreciate hearing from people in the know of the subject.
- How many stars are within 100 Light Years of Sol? I am sure we have catalogued our local region? I had read that there were over 10,000 stars?
- How many starts are within 1000 LY diameter? What is the composition and distribution of stellar types/objects?
- Out of curiosity, what would happen if the star Altair (16 LY distance) went nova/super nova from Sol? What would we observe? What effects would such a massive explosion so close to us have on our solar system?
I would greatly appreciate hearing discussion or comments from others out there.
Thanks
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