Passage: Gliese 876 is located fairly close to the Solar System. According to astrometric measurements made by the Hipparcos satellite, the star shows a parallax of 213.28 milliarcseconds, which corresponds to a distance of 4.69 parsecs (15.3 ly), currently making it the third-closest known star with orbiting planets, after Epsilon Eridani and Gliese 674. Despite being located so close to Earth, the star is so faint that it is invisible to the naked eye and can only be seen using a telescope.

Question: What magnification device is needed in order to observe the star?
telescope