Luyten 726-8 B is a star located 2.70 pc away from Earth with an apparent magnitude of 13.0. What would the star’s apparent magnitude be if it were located 5.00 pc away? Give your answer to one decimal place.
Teegarden’s Star has an apparent magnitude of 15.1 and an absolute magnitude of 17.2. How far away from Earth is Teegarden’s Star? Give your answer in scientific notation to two decimal places.
Gliese 832 is a star with an absolute magnitude of 10.2. The star is located 16.2 light-years away from Earth. What is the apparent magnitude of Gliese 832? Give your answer to one decimal place.