Tonight Mercury will reach its greatest eastern elongation. This is when Mercury will appear highest in the sky after sunset. For those that want to see this elusive planet this is one of your best chances of the year. Learn more about Mercury.
Last quarter moon occurs today. For the next week the moon will be a great target for early morning observers. As the next seven days occur watch how the moon appears near the planets Jupiter, Venus and Saturn. Learn about the moon phases for 2019.
Tonight around 8:30 pm, the brightest star in the night sky will be visible. This is Sirius and it will be found in the south. The star appears so bright due to its closeness to the Sun. Sirius is about 8.6 light years away. Learn more about Sirius. Image Credit: Mellostorm [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)],… Continue reading
Tonight around 9pm look east for a bright backwards question mark shape of stars. This is the constellation Leo the Lion. The brightest star in Leo is Regulus. Learn more about Regulus. Image Credit: Drew Farwell [CC BY-SA 3.0], via Wikimedia Commons
By 10 pm tonight the winter sky will have shifted to the west. In the east we see the approaching spring sky. Learn about Winter Sky.
On this date in 2000 the Stardust spacecraft collected particles of interstellar dust. Some of the particles were studied at Washington University in St. Louis. Learn more about the Stardust spacecraft.
Tonight look for Mars in the west after sunset. It will have a distinct orange/red color, it will not twinkle, and it should be the brightest object in the western sky. Learn more about Mars
On this date in 1962, John Glenn became the first American to orbit the Earth. Glen piloted the Mercury-Atlas rocket named Friendship 7 and completed three orbits of Earth. Learn more about John Glenn.
Tonight the moon will reach full moon while it is closest to Earth. This is called a perigee moon or what some call a super moon. Learn more about the Super Moon.
On this date in 1930 Clyde Tombaugh discovered Pluto. Today only one spacecraft has flown by Pluto, which is called New Horizons. This spacecraft has now also flown by the Kuiper Belt object Ultima Thule. Learn more about Clyde Tomaugh.