太阳城官网

Bakersfield Night Sky - August 2, 2020
By Nick Strobel

One of the new habits I've taken up during these is an evening walk around the perimeter of my neighborhood with my wife. We have to do it well after sunset now due to the heat. I enjoy it not only because it's time set aside for us to talk about the day but also because Jupiter and are well-situated in the southeastern sky, high enough to be above the nearby homes and trees but not so high to strain my neck. Besides the moon, Jupiter is the brightest thing you'll see in the evening sky. The moon will be at tonight, so it's going to wash out a good size chunk of the night sky around it but you should be able to still see Saturn in-between the moon and Jupiter.

In nine days for the peak of the on the night of August 11/12, the moon will be a rising at about 12:30 AM. Although, because we're facing in the direction of the that makes a meteor shower, the moon is going wash out the fainter ones, so observing meteors before midnight is probably the better time. , so they're active from mid-July to the second half of August. Planetarium's page about the Perseids.

Mars is now an evening sky planet, rising shortly before midnight. There are : the launched on July 20, launched on July 23, and the set to launch on July 30. By the time the spacecrafts arrive in February, Mars will be rising at about 11 AM in the morning and will set shortly after midnight. After China's Tiawen-1 arrives at Mars, it'll spend a couple of months checking things out from orbit before dropping the rover/lander onto the surface.

In other space exploration news was the story about spacecraft during its first close pass by the sun. 鈥淐ampfires鈥� is so nice and comforting during these stressful times. In the public relations office the conversation about the features in the sun's corona atmosphere may have been something like the following: 鈥淒o we call them (a) campfires or (b) mini-flares several hundred kilometers across flickering in the sun's corona.鈥� 鈥淯h鈥�, let's go with option (a)鈥�. Now, something several hundred kilometers across is going to be tiny compared to the sun but scaling the campfires down to Earth scales would be something several kilometers across which in my experience is called a 鈥渇orest fire鈥�.

are the closest ones yet taken of the sun. will get up to two times closer over the next couple of years, so the images will be even more detailed. Solar Orbiter will be providing complementary data with the Parker Solar Probe that was launched in the second half of 2018. Although the Parker Solar Probe has flown closer to the sun than the Solar Orbiter, Parker does not have cameras because the environment in which it is operating is too harsh for cameras. Solar Orbiter's cameras and instruments will complement Parker's. Solar Orbiter will be changing its path gradually so that it can study the polar regions of the sun which has only been done once before with the in the 1990s and early 2000s. However, Ulysses studied the polar regions from a distance at least six times as great as what Solar Orbiter will be able to do.

Images from something a bit further away were recently published. They are which is almost 310 light years away. This is the . Other multi-planet systems that have been directly imaged are those orbiting stars that are either more massive or less massive than the sun. Like the other systems, TYC 8998 is very young (only about 16.7 million years old), so the planets are still glowing hot from their formation and the exoplanets are very far from their host star. The when the star's light is blocked by a small disk called a . Exoplanets far enough away from the star won't be blocked by the coronagraph.

The closer exoplanet orbits about four times farther out than Pluto orbits the sun. At 14 times the mass of Jupiter, it is probably more like a failed star called a . The farther exoplanet is about six times the mass of Jupiter and orbits at eight Pluto distances from the star. Both exoplanets are way, way outside the . The direct imaging of an Earth-like planet in the habitable zone is going to take a .

Stay healthy, and keep six feet between you and others in crowds to prevent passing on COVID19 to others. As Smoky Bear says, 鈥淥nly you can prevent infections.鈥�

鈥�
Nick Strobel
Director of the William M Thomas Planetarium at 太阳城官网
Author of the award-winning website