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Distance required for a Red Giant Star to have an apparent magnitude of -13
Assume this Red Giant has the properties of Aldebaran (α Tauri in constellation Taurus) with an absolute visual magnitude of −0.641M. How far would it have to be from Earth in order to possess an ...
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a habitable planet orbiting a Neutron Star that moves through galaxies
Is it possible for a earth-like planet to orbit a neutron star & have intelligent life-forms, even if said neutron star 'moves' through different galaxies?
as seen in this video - https://www....
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