observatory

W M Keck Observatory Achieves 1st Light With Keck Planet Finder

The subsequent couple of months need to be a great time for Jupiter and Saturn watching, specifically with a backyard telescope. Saturn was at its closest and brightest for the year on Aug. 2, 2021, even though Jupiter will be at its closest and brightest on August 19, (known as “opposition” mainly because they will be opposite the Earth from the Sun). Each will seem to shift toward the west over the coming months, creating them visible earlier in the evening sky . These measurements provided the planet’s mass, which was calculated to be about 1 quarter that of Jupiter,...