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look up! your guide to some of the best meteor showers for 2018 - 18 watt solar led street light

by:Litel Technology     2019-08-02
look up! your guide to some of the best meteor showers for 2018  -  18 watt solar led street light
At the beginning of this year, when we see the main meteor showers of the year, the beginning speed is relatively slow.
One quarter of the three heavy showers a year are submerged by the unpredictable full moon at the beginning of January.
But the other two most active annual showers this year-the Perseids (in August)and Geminids (in December)—
Set to display fine images.
So, when and where should you look for the best opportunity to watch natural fireworks?
Here, we show the possible meteor highlights in 2018.
These meteor showers are most likely to give a wonderful performance this year.
For each shower, we give the predicted activity cycle and the maximum predicted time.
We also provide charts that show you where to view and give peak rates that you can see under ideal conditions. (
Called the highest zenith hourly wage, or zhr).
The actual rate you see will always be below this value. -
However, the higher the shower radiation in the sky and the darker the conditions are, the closer the observed frequency is to the ideal value.
If you want to see the best price, you'd better find a good place away from street lights and dim light.
Once you go out, you must give your eyes enough time to adapt to the darkness. (
At least half an hour).
The showers that can only be seen from one hemisphere are expressed in the following two ways:[N]or [S]
Where you can see that the global tag is[N/S].
Activity time: 14 April-
30 max: 6 p. m. UT on April 22 = 2 a. m. on April 23(WA)= 4am AEST (
Queensland/New South Wales/ACT/VIC/TAS)
ZHR: 18 + parent: Comet C/1861 G1(Thatcher)
Lyra has the oldest record of showers, at least since 687 bc.
This longevity phenomenon is related to the orbit of the mother comet of Lyra, which was discovered by Mrs. Thatcher in 1861.
Comet Thatcher orbits in a highly inclined, eccentric orbit, swinging within the solar system every 415 years or so.
The last time it approached the Earth was in 1861.
Thatcher's orbit is relatively stable compared with many other comets, because the only planet that can come into close contact with it is Earth.
This means that its meteors continue to move in roughly the same orbit.
For thousands of years, the debris has been scattered in the comet's vast orbit, which means that for thousands of years, when the Earth and the orbit of Comet Thatcher intersect, people will see the lyre, as regular as a clock.
A study of the orbit of the Lyra meteor shower even suggests that meteor showers may have been active for at least a million years.
These days, Lyra is usually a moderately active meteor shower, producing 10 to 20 fast, bright meteors per hour at its peak.
Occasionally, however, the seven-stringed instrument can cause a surprise, and in a few hours its speed will rise even higher.
The best of these outbreaks seems to occur every 60 years or so, the most recent of which occurred in 1982, when the observed rate reached or exceeded 90 times per hour.
There won't be such an outbreak in 2018, but even in quiet years, the lyre is still an interesting shower observation.
They are best observed from northern latitudes, but their radiation is far enough for observers across Australia to see them within a few hours before dawn.
Intermediate observer-
At about 11 p. m. local time, the Lyra radiation reaches the appropriate height in the northern latitude.
Audiences in the southern hemisphere have to wait until early morning to see a reasonable ratings.
This year's maximum forecast time is good for observers in Australia and East Asia, but the known maximum forecast time is different, so observers around the world are likely to remain vigilant in case!
Activity time: July 17-
Maximum time on August 24: 8 p. m. on August 12-
8 a. m. UT = 9 p. m. BST on August 13(UK)= 10pm CEST (Europe)= 6pm EDT (East Coast, US)= 3pm PDT (West Coast, US)
12 Hours ZHR: 110 Parents: Comet 109 P/Swift-
For observers in the northern hemisphere, Perseus is a spectacular summer highlight.
At their peak, they usually reach or exceed 100 meteors per hour. They are famous for their frequent spectacular fireballs.
The Perseid meteor shower is probably the most famous and widely observed of all modern meteor showers.
They are very consistent. Peak hours are usually seen in a few nights, while the summer season in the northern hemisphere is autumn.
At that time of year, warm nights and often sunny skies make showers a real darling!
Like the lyre, Perseus has a long history, at least 2000 years of observation.
Their mother comet, 109 P/Swift-
Tarter is a giant with the largest nucleus of known periodic comets. -
The diameter is about 26 km.
It probably has been on track for tens of thousands of years and has been putting down debris for our annual celestial event in Perseus.
Next time it will pass the Earth in 212 6, it will be a spectacular naked eye object.
The largest predictions for Perseus this year are biased towards European observers, although considering the length of peak activity, it is possible to see spectacular starfish anywhere in the northern hemisphere on the night of August 12.
But don't be disappointed if it's cloudy that night, because Perseus has a relatively broad peak, which means good weather can be seen on any side of the peak.
In 2018, the peak of the Perseid meteor shower coincided with the crescent moon, so it was totally unaffected by the moonlight, making this year an ideal year for meteor shower observation.
The farther north you go, the earlier the shower radiates.
But a reasonable price can usually be seen at any time after 10 p. m. local time.
The later the night you observe, the higher the radiation, the higher the rate.
It is not uncommon for enthusiastic observers to see meteor showers at most nights until dawn, and hundreds of meteors in one night.
Activity time: 6 October-
10 max: October 9, 12:10 AM UT = 1:10 AM BST(UK)= 2:10am CEST (Europe)
ZHR: 10 + parent: Comet 21P/Giacobini-
Dragons is a fascinating meteor shower, although in most years it's a bit unpleasant.
Unlike previous meteor showers, tornadoes are relatively young meteor showers that vary greatly from year to year.
Tornadoes first observed less than a century ago(
Also known as Gioacobinids)
Tied to Jupiter-
A comet called 21P/Giacobini-Zinner.
This comet is the first to be visited by a spaceship. It often comes in close contact with Jupiter, which constantly pushes it into orbit.
These encounters also disrupt comet falling meteors, sometimes increasing the Earth's speed and sometimes slowing it down.
At the beginning of the 20th century, comet Giacobini was recognized. -
Zinner's orbit is close enough to the Earth, and when we flip through the debris it left behind, we may be able to see meteors.
This led to the first prediction of tornado activity.
There is no doubt that the great meteor observer WF Denning confirmed the existence of meteor showers in 1920, and only five meteors were observed between October 6 and October 9.
In 1933 and 1946, tornadoes produced two of the greatest meteor displays of the 20th century. -
Storms, with thousands of meteors per hour at their peak speeds.
In those years, one or two months after the comet passed perihelion, the earth passed through the comet's orbit. (
The nearest place to the sun)
Earth passes through dense matter in the wake of a comet.
After 1946, the tornado became quiet and almost disappeared from our sky.
Jupiter turned the comet into a less favorable orbit.
Only a few dragons appeared in 1972, and then again in 1985 and 1998.
In the late 1990s, our ability to predict and understand meteor showers was revived because of the enhanced activity of the Leonid meteor shower.
Using the technology of studying the Leonids meteor shower, astronomers predict that the activities of the Leonids meteor shower will increase in 2011. The predicted outbreak will occur in time. The observed speed is about 300 meteor showers per hour.
Comet Giacobini this year-
Zinner again passes through perihelion and oscillates near Earth orbit.
The possibility of starting a shower is high. -
Although it is unlikely to produce a spectacular storm.
The simulation shows that 20 to 50 faint meteors per hour may appear around 12:14 a. m. Eastern Time on October 9.
Other models show that interest rates will peak 45 minutes ago, with lower rates of 15 to 20.
Tornadoes radiate around the poles. (
In other words, it never sets)
In areas north of latitude 44, it is the highest in the sky before midnight.
This year, the moon is new, and this is the ideal time for European observers to predict its peak.
If the sky was clear that night, it would be worth leaving around 11:30 p. m. British Summer Time. (
12:30 noon, 9 October)
Spend hours staring North in case a tornado does another spectacular show.
Activity time: 10 September-
Maximum Dec. 10: Oct. 10(
Southern Taurus); November 12 (
Northern Taurus)
ZHR: 5 + 5 Partner: Comet 2P / annual meteor shower enclave, Taurus dusts a lot of dust into the Earth's atmosphere.
Inside the solar system there is a large piece of debris called the Taurus Current.
It is so widely distributed that the Earth passes through it for a quarter of the year.
In June, the debris produced the daytime Taurus meteor shower. (
As the name implies,
It happens during the day and can only be known by radio observation.
After leaving the river for some time, the earth penetrated it again in early September, and its activity lasted until December.
Hourly wage rates fluctuate, with several distinct peaks and troughs during October and November.
Taurus rivers are complex-
There are at least two main components called the northern and southern branches.
Usually, Taurus in the South moves earlier in the year and peaks one month before the North Branch.
Taurus is a slow meteor with lots of bright fireballs.
Therefore, although their frequencies are low, they are noteworthy, especially when other showers are also active, such as tornadoes, Orion and Leo.
Together, these showers make the Northern Autumn or Southern Spring a good time to go out looking for natural fireworks.
Activity time: 2 October-
Maximum on November 7: ZHR:20+Father: Comet 1p/Halley twice a year, Earth passes through debris streams scattered around comet 1p/Halley orbit.
Throughout October, this led to the Orion meteor shower.
Orion meteor shower is a fairly reliable meteor shower with a long maximum range.
Usually, peak interest rates can last nearly a week, centered on nominal maximum dates.
During the week, Orion rates fluctuate significantly, leading to some significant maxima and minima.
Orion meteors are fast-
It's much faster than Taurus, which is active at the same time of the year.
Like Taurus, they are usually bright as a result of meteors hitting the Earth's atmosphere at a high speed.
Orion's radiation rises late at night, and only at high altitudes in the sky can people see a reasonable radiation rate after midnight.
Therefore, the best rate is usually observed in the hours before dawn.
This has worked well this year, because the moon will be in its expanding phase, falling sometime after midnight, darkening the sky, allowing us to observe the most famous comet debris.
Activity time: 4 December-
17 max: December 14, 12:30 p. m. UT = Australia: December 14, 8 a. m. (WA)= 10:30pm (QLD)
= 11:30 PM Eastern Standard Time(New South Wales/ACT/VIC/TAS)
= United States: December 14, 7:30 a. m. (EST)= 5:30am (PST)= 2:30am (Hawaii)
Parent: 120: The year of Faisenas, asteroid 3200, is coming to an end. We have arrived at the most reliable and spectacular meteor shower of the year. -the Geminids.
Unlike Perseus and the lyre, Gemini is a relatively new phenomenon that has decorated our sky for thousands of years.
They were first observed 150 years ago. In the first part of the 20th century, it was a relatively small shower.
But since then, interest rates have risen by 10 years. -on-
For ten years, by the time of the best showers of the year, there has been no more.
The reason for their rapid evolution is their orbit. (
And their parent, the asteroid Faithon.
As time goes by, it moves rapidly around the sun. (
Swing like a slowly rotating gyro).
Because of this, the center of Faerton's orbit and the center of the Gemini Star are getting closer and closer to the Earth.
For the north, radiation will rise soon after sunset, and good radiation can be seen from the middle. -Start at night.
For observers in the southern hemisphere, radiation rises late, so good radiation rates are delayed until late at night. (
As stated in our shower report for 2015).
Although this year's highest interest rates seem to benefit observers in the United States and Australia, Gemini's highest rates usually last about 24 hours, so high rates should be seen around the world.
The biggest drop this year is the day before the moon reaches the first quarter, so you can see the best drop. (
After midnight, local time)
When the moon falls, the moonlight will not interfere.
Given that Gemini interest rates continue to climb, the estimated Zhonghong 120 may be somewhat conservative.
In recent years, the ratio has exceeded 130, or even as high as 200 per hour.
Gemini Medium-
Meteors are fast and often bright.
The fact that individual meteors seem to last a little longer than other meteor showers may be related to the rocky nature of their parent bodies.
Wherever you are on this planet, Gemini is a good way to end the year. We hope to have a big exhibition this year.
Jody Horner is a scoundrel-
Tanya Hill and Senior Fellow of the President of the University of South Queensland are senior curators. (Astronomy)
Honorary Fellow, Victoria Museum and University of Melbourne.
This article first appeared in the conversation.
Topic: Astronomy-
Space, science, stars, planets-and-
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