On this date in 1990 the robotic probe Magellan arrived at Venus. This probe mapped out the surface of the planet using radar. Looking to the west around 9pm you will see Venus!
Today Mercury reaches inferior conjunction. This is when Mercury passes between Earth and the Sun. On November 11, 2019 this will happen again as a syzygy meaning that with safe solar filters you can see Mercury transit Sun.
NASA has set the launch window for the Parker Solar Probe for August 11-19. The August 11 launch time is 2:48am to 3:48am.
Around 10pm if you look to the southeast you will find a large smile shape of stars. This is the constellation Capricornus which was first recognized by astronomers from Mesopotamia.
Every August the Perseid meteor shower returns to our sky. This peak of this meteor shower occurs on the evening of August 12 into the morning of August 13.
This is the Saint Louis Science Center’s NIGHT SKY UPDATE for the week of Tuesday, August 7. All times are given as local St. Louis time (Central Daylight Time). For definitions of terminology used in the night sky update, click the highlighted text. Information updated weekly or as needed. Join us for our next star… Continue reading
The red giant star Arcturus is the 4th brightest star in the sky. This star is found in the constellation Bootes and can be found in the west around 10 pm.
This month NASA will launch the Parker Solar Probe. This sun orbiting spacecraft will fly through the Sun’s outer atmosphere getting as close as 3.8 million miles from the surface of the Sun.
Public Telescope Viewing will be held at the James S. McDonnell Planetarium tonight with the St. Louis Astronomical Society.
Since Neptune’s discovery in 1846 it has only completed one orbit of the Sun. This was accomplished in 2011. Neptune’s orbital period is 165 Earth years.