Earthlings sent a signal to globular cluster M13, which is 13 billion years old. In what stars and at what distances from them
September 15, 2020 | Education
| Earthlings sent a signal to globular cluster M13, which is 13 billion years old. In what stars and at what distances from them is it possible for planets with the same temperature conditions as on Earth?
Red dwarfs that have not yet descended from the main sequence have masses of no more than 0.7 solar masses, a luminosity of no more than 0.25 of the solar luminosity, and a distance to the star of no more than 0.5 AU.
