Merrillville Community Planetarium
Bringing the Universe to the Merrillville Schools and Northwest Indiana

December Planets

Jupiter can be seen low in the southwestern sky after sunset near Venus in the constellation Sagittarius (the Archer). Jupiter slowly moves closer to the Sun and disappears in the Sun’s glare by midmonth. Jupiter looks like a bright, yellow-colored star.

Venus can be seen low in the southwestern sky moving from the constellation Sagittarius (the Archer) into Capricornus (the SeaGoat). Venus appears higher every evening and passes Saturn on the 11th. Venus is the “Evening Star”. Venus looks like a very bright white star.

Saturn can be seen low in the southwestern sky east of the Teapot shape in Sagittarius (the Archer). Saturn sets about an hour after Jupiter. Saturn disappears in the Sun’s glare by the end of the month. Saturn looks like an amber-colored star.

Mars can be seen rising in the southeastern sky a few hours before sunrise passing from the constellation Virgo (the Maiden) into Libra (the Scales). Mars rises earlier every morning, moving higher into the eastern sky before dawn. Mars looks like a ruddy-colored star.

Mercury can be seen rising in the predawn sky a couple hours after Mars, passing from the constellation Libra (the Scales) into Scorpius (the Scorpion). Mercury will rise later and appear lower each morning, until it disappears in the Sun’s glare by midmonth. Mercury looks like a small white star.