Refracting telescope focus, results in a non-inverted and upright image. Galileo’s best telescope magnified objects about 30 times. Because of flaws in its design, such as the shape of the lens and the narrow field of view, the images were blurry and distorted. Despite these flaws, the telescope was still good enough for Galileo to explore the sky. The Galilean telescope could view the phases of Venus, and was able to see craters on the Moon and four moons orbiting Jupiter. Parallel rays of light from a distant object (y) would be brought to a focus in the focal plane of the
Solar eclipses on the Moon at 43.31°S) where the temperatures remains high. Some craters are slightly cooler but as warm as the surface and warmer than areas outside the mares (basins) such as Copernicus and Langrenus. On the Moon, when there is a partial eclipse, one example is when half of the Sun is blocked (north or south), a part of the Moon has a partial eclipse (north or south). In some partial eclipses when the center of the Earth's shadow misses the Moon, one example is one hemisphere has a partial eclipse and the other does not. In some eclipses when the center of