This article was posted by CrystalWind.ca.
Lyrid Meteor Shower - 2020
Category: Cosmic Events
In late April, skywatchers in the Northern Hemisphere will get a view of the Lyrid meteor shower, the dusty trail of a comet with a centuries-long orbit around the sun. The Lyrid meteors streak across the sky between April 16 and April 30, so skywatchers have a chance to see them during that window, weather permitting.
The annual Lyrid meteor shower is active each year from about April 16 to 25. In 2020, we expect the shower to pick up beginning late at night on Sunday, April 19, 2020, probably peaking in the predawn hours on Wednesday, April 22. The follow morning (April 23) might be good too, if you’re game. This shower comes after a months-long meteor drought that always falls between early January and April’s Lyrid shower each year. By April, many meteor-watchers are itching to get going! So – though they produce only 10 to 15 meteors per hour at their peak – the Lyrids are always welcome!
The peak of the Lyrid meteor shower will be overnight on April 21-22, NASA meteor expert Bill Cooke told Space.com. As with most meteor showers, the peak viewing time will be before dawn, but the Lyrids will be visible beginning at about 10:30 p.m. local time. The moon will be a thin crescent only about two days from the new moon, Cooke said, so the moonlight won't flood your observations.
While the average Lyrid shower produces 15 to 20 meteors per hour, this year skywatchers can expect to see about 10 per hour, depending on how clear and dark your sky is, Cooke said. Some years, the Lyrid meteor shower intensifies and can produce up to 100 meteors per hour in what's called an "outburst," but it is difficult to predict exactly when that will happen.
"People say there is some periodicity there," Cooke said, "but the data doesn't support that." Although there is an average of 30 years between these outbursts, that's only an average; the actual number of years between the events varies, Cooke said.
The Lyrids are so named because they appear to radiate out from the constellation Lyra. Humans have been watching them since 687 BC in China, according to Space.com’s Joe Rao.
Where to look
On Monday night, Lyra will rise in the Northeast in the early evening hour, and then move overhead through the evening. It is pretty easy to spot, as it includes the star Vega, which is among the brightest in the night sky. You don’t need to be looking directly at the constellation to see the show, though, because the meteors will shoot out in all directions.
The radiant — the point from which the meteors appear to originate — will be high in the evening sky in the constellation Lyra to the northeast of Vega, one of the brightest stars visible in the night sky this time of year. Don't look directly toward the radiant, though, because you might miss the meteors with the longest tails.
The Lyrid meteor shower is of medium brightness, but not as luminous as the famous Perseid meteor shower in August, which tends to produce more prominent trails, Cooke said.
What causes the Lyrids?
Lyrid meteors are little pieces of Comet Thatcher, a long-period comet that orbits the sun about once every 415 years. Pieces of debris left in the comet's wake, however, make an appearance every year. (Comet Thatcher's most recent perihelion, or closest approach to the sun, was in 1861. It won't be back until the year 2276.)
Meteor showers occur when the Earth crosses the path of a comet, colliding with a trail of comet crumbs. That's why they happen around the same time every year and appear to originate from specific points in the sky. As they burn up in the atmosphere, the meteors leave bright streaks in the sky commonly referred to as "shooting stars." [Infographic: How Meteor Showers Work]
Lyrid meteors come in fast — though not as fast as the Leonids, which peak in November, Cooke said. "The Leonids hit us head-on," he said. "The Lyrids are more like hitting the left front fender."
The Lyrids are one of the oldest recorded showers, Cooke said, with observations going back to 687 B.C. You don't need any kind of special equipment to see the meteors; just look up at the dark sky, be patient and enjoy the show.
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