I. Have you ever wished upon a shooting star and wondered where it came from? A. It is said by Greek astronomer Ptolemy that shooting stars are the Gods paying attention to what we wish for. B. However what is a shooting star anyways? Where do they even come from? II. I am here to inform the class on what a meteor shower is, how they form, and how to observe them properly. III. This past summer, I was given the great opprotunity to view the Perseids Meteor shower where I saw well over 20 meteors across the night sky right here in the suburbs. IV. Meteor showers don't just happen whenever, theres actually a more complex way of when to view them, due to when and where they take place. There are actually specific dates and times on when they …show more content…
can be best seen in the night sky. Body: I.
There is usually a confusion as to what the differences are between meteors, meteroids and meteorites are. A. A meteor is the orb of light seen from earth, otherwise known as a “shooting star,” whereas a meteoroid is the debris that falls from the meteor. B. Meteroites are the particles of the a meteor that can lands on earth. They can be found in various sizes ranging from the size of a grain of sand to the size of a boulder. These meteorites are said be trillions of years old, and it quite possible some can be older than earth itself. II. Meteor showers occur when dust and particles from asteroids and comets come into contact with the earth's atmosphere. A. These particles enter the earth's atmosphere at a high speed that causes friction between the air particles and the meteors, heating the meteors often creating a “firebal”. B. So what are asteroids? What are comets? 1. Asteroids are the pieces of rock that came from the asteroid belt between planets Mars and Jupiter. 2. Comets are similar to asteroids, however they are covered in particles like as ice and gas compounds. III. From personal experience of viewing a meteor shower, it takes a specific date, time, and location to properly view a meteor shower, even from a suburban
area. A. It is best to find out when a meteor shower will occur, there are specific dates depending on which meteor shower is favored to be viewed. B. It is ideal that a shower occurs on a moonless night, usually the night before a new moon. A moonless night means a darker and starrier sky. 1. Dark areas like a campground or anywhere away from any form of light helps with the viewing of meteor showers. 2. It is best not to look at any light in order for your eyes to adapt to the darkness, even looking at phone screens can ruin the eye's light adaptation, making it more difficult to actual view the shower. C. The best times to view these “shooting stars” usually occur during the hours of midnight and 3 am. 1. When the earth rotates, it passes through the dust trail where these meteors come from, making the meteor shower highly visible. 2. Some Meteor showers can produce up to 100 meteors per hour during their peak, reaching a speed up to 160,000 miles per hour. I. In conclusion, we're all technically really wishing upon shooting meteors. II. The fireballs we see in the sky are actually trillions of years old, and the fact that we can view such a thing is amazing. III. If I could advise anyone in this class to do one thing, it would be to one day go out and just star gaze. IV. Sure, we can see photos and videos of the sky online or on our phones, but for once, just look up. It's amazing to realize whats actually out there, and what the world's atmosphere can offer.
about to take place. All a meteor is, is a chunk of rock of that is being
My clock’s hour hand hovered somewhere around the 11 P.M. mark, and my parents, brother, and sister had all already tucked in for the night. Rumour had it that the meteor shower was going to be at it’s brightest and most vivid at around 2 A.M., and I was determined to wait it out. Reclining comfortably on my bed, I kept one eye constantly on the clock while texting every friend who appeared to be awake at that hour. Eventually, even they soon clocked out, leaving me truly alone to wait. It still wasn’t quite 2 A.M. yet, and all this waiting around bored me immensely. The time ticked slowly, steadily onward, while I kept myself entertained playing games on my phone. When I finally tore my eyes from the screen and to the clock, it was already half-past two. Fearing that I may have missed the meteor shower in its entirety, I rushed as quickly and quietly as I could force myself to manage, through my house and out the back door into the backyard. I turned my head to the skies and stared expectantly. There were stars alright, yup. They were certainly pretty. But I hadn’t stayed awake for hours on end for some stars that I had already seen thrice over. I scanned every corner of the night sky for anything that might resemble a flying space rock, but found none. I realized that if I wanted a glimpse of those meteors, I would need to wait some more. Though the prospect of having to wait even further disheartened me, I
Chondrites were made by the accretion of particles of dust present in the primitive Solar System which gave rise to asteroids over 4.55 billion years ago (SOURCE). These asteroid parent bodies of chondrites were small to medium sized asteroids that were never large enough to go through melting and planetary differentiation like Earth. Further evidence of age is shown through the abundance of non-volatile elements in chondrites which is similar to that found in the atmosphere of the Sun and other stars in our galaxy.[10] Even though chondritic asteroids never became hot enough to melt based upon internal temperatures, many of these asteroids did reach high enough temperatures to experience significant thermal metamorphism in the interior. T...
Now that the history is covered, I can get down to the nitty gritty of how they are able to appear in the sky. Auroras are caused by the collision of e...
There are two meteor showers associated with Perseus—the Perseids and the September Perseids. The Perseid meteor shower is the most impressive one. It is visible in August, and the Perseus constellation is its radiant point. (Perseus Champion, Perseus Constellation, Perseus He-ro)
However, asteroids are much more deadly. If over-sized meteor can wreck buildings and injure people, then a normal sized asteroid can easily wipe out species if it lands in the right place. As mentioned before, asteroids are much bigger than meteor and much more rare. According to the “Mail Online” 12,000 years ago some type of asteroid slammed into the Northern Canada and some scientist believe that wiped off the mammoths and caused the “Younger Dryas”. Another famous event of asteroids striking, that many scientist believe, was around 65 million years ago asteroids rained and killed of all the dinosaurs 75% of all the life on earth.
If you let N equal the number of stone meteorites, which fall on one km2 of the surface of the Earth during a one-year period and N, includes all meteorites with a mass greater then or equal to m kg. The rate of the number of meteorites that touches down is:
Every day we look into the night sky, wondering and dreaming what lies beyond our galaxy. Within our galaxy alone, there are millions upon millions of stars. This may be why it interests us to learn about all that we cannot see. Humans have known the existence of stars since they have had eyes, and see them as white glowing specks in the sky. The mystery lies beyond the white glowing specks we see but, in the things we cannot see in the night sky such as black holes.
Preventing a meteor impact depends on how soon before it hits that we find it. We have the technology right now to alter most meteor orbits away from earth. But if we never discover a meteor intercepting the Earth, these meteor 'weapons' are useless. Because much less than half of all near Earth objects are still undiscovered, we most likely will not have any warning before a meteor hits.
Asteroids can be found orbiting the Sun in a belt between Mars and Jupiter; this is called the Asteroid belt or Main belt. The asteroid belt has been said to probably contain millions of asteroids that are all different. There are more than 20,000 numbered asteroids. Some times asteroids get knocked off the asteroid belt. As asteroids revolve around the Sun in elliptical orbits, Jupiter’s gravity and getting to close to Mars or another asteroid can change an asteroids path, this could send an asteroid out of the asteroid belt and into space across the orbits of other planets. An example of asteroid orbits changing is Mar’s moons Phobos and Deimos. These were asteroids that went to close to Mars and got caught in its orbit.
same liquid rock matter that you see coming out of volcanoes. On Earth's surface, wind and water can break rock into pieces. They can also carry rock pieces to another place. Usually, the rock pieces. called sediments, dropped from the wind or water to form a layer.
I began my six-night observation of the moon on September 17th. Of the six days I observed the moon from my bedroom window at 9:30 P.M., I was only able to see the moon, a full moon, on the first day. While on the last day of observations, that being September 27th, I was again unable to see the moon at 9:30 P.M., I was able to see a low waning crescent at around 6:10 A.M from a different location. I concluded that my location of choice was not ideal despite it being my second attempt at observing the moon; my first attempt was set at 7:30 P.M. in the same location, which proved to be too early.
E. Preview: So, let's crash through the causes of tornadoes, twist around the types of tornadoes, and blow through some of the oddities associated with tornadoes.