Memorial Day meteor shower: Tau Herculid shower could dazzle the night sky Monday – Fresno, California

Fresno, California 2022-05-30 15:27:56 –

Earth is expected to pass through the remains of a broken comet on Monday night and early Tuesday morning. It has the potential to bring about a brand new meteor shower.

Night sky watchers in North America are most likely to see the Tau Herak Reed Shower, and NASA recommends it as the best time to look around 1am on the East Coast and 10pm on the West Coast. Since the moon is new, there is no moonlight that obscures the meteor.

But even if the sky is clear and dark, there is no guarantee of a dazzling display, NASA emphasized. It can be attributed to nothing.

The comet, formally known as 73P / Schwassmann-Wachmann, or SW3, was discovered in 1930 by German observers Arnold Schwassmann and Arno Arthur Wachman. According to NASA, it was not discovered again until the late 1970s, and in the 1990s the comet shattered into several pieces.

By the time SW3 crosses Earth again in 2006, it will be nearly 70 and have continued to be fragmented since then, the statement said.

According to NASA, observations from the Spitzer Space Telescope, published in 2009, show that some debris is moving so fast that space scientists can see it.

There are about 30 meteor showers each year. This occurs as the Earth passes through the traces of debris left by comets and asteroids and is visible to the naked eye.

Some meteor showers have existed for centuries. For example, the Perseids meteor shower, which occurs every August, was first observed about 2,000 years ago and was recorded by the Chinese sky star, NASA said. Such new meteor showers, if any, are relatively rare.

“All or nothing event”

Debris from SW3 collides with the Earth’s atmosphere more slowly than other meteor showers. It is not the size of the debris that causes the shower, but the speed at which the debris collides.

Even if you can see it, this means, for example, that the meteorite is much darker than the meteorite of Mercury in Aquarius earlier this month.

“This will be an all-or-nothing event. If the debris from SW3 is moving more than 220 mph when you leave the comet, you may see a great meteor shower. If the debris release rate is slow. Has nothing. It will reach Earth and there will be no meteor from this comet. ” Bill Cook, who heads NASA’s Meteor Environment Department at NASA’s Marshall Space Flight Center in Huntsville, Alabama, said in a statement.

Robert Ransford, Secretary-General of the International Meteor Organization, says Tau Herculid was wrongly named, but meteor showers are usually named after constellations that appear to radiate into the night sky. .. He said they appear to radiate from a constellation known as Boötes, northwest of the bright orange star known as Arcturus (Alpha Bootis).

“Radiation is expected to be a large area of ​​the sky, not pinpoint, so slow meteors from this common area of ​​the sky can be expected to be from SW3,” Lunsford blogs. I mentioned in the post.

“Meteorites can appear in any part of the sky, so you don’t have to look directly above. At these altitudes, you’re actually seeing a much thicker slice of the atmosphere when looking straight. It is more likely to appear at low altitudes in the sky. Upward. “

More meteor showers

If the Tau Herculed Shower turns out to be unexploded, don’t be afraid. There are several other opportunities to witness meteor showers this year.

Delta Aquariids are most commonly found in the southern tropics and peak between July 28 and 29, when the moon is 74% full.

Interestingly, another meteor shower peaks on the same night-Alpha Capricornids. This is a much weaker shower, but it is known to produce bright fireballs during peak hours. It is visible to everyone, regardless of which side of the equator they are on.

The most popular Perseids meteor shower of the year is the Northern Hemisphere, where the moon is only 13% full, peaking between August 11th and 12th.

According to the EarthSky meteor shower outlook, the schedule for the rest of this year’s meteor shower is as follows:

  • November 4-5: South Taurus meteor shower
  • November 11-12: North Taurus Meteor Shower
  • December 13-14: Geminide

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Memorial Day meteor shower: Tau Herculid shower could dazzle the night sky Monday Source link Memorial Day meteor shower: Tau Herculid shower could dazzle the night sky Monday

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