Galaxies have a variety of shapes that ranges from ellipsoids to spiral galaxies. Spiral galaxies are made up of many individual stars. Moreover, the components of the spiral galaxies move relative to each other. For instance, a rotation curve of a rigid body measures the speed and the radius. However, a rotation curve of a rigid body must have a body where the angular speed is the same. As a result, this lab will help me understand how individual stars move in a galaxy spiral. This lab will also help me understand why the stars speed in the inner part is different from the outer part of the galaxy.
The discovery of Uranus was a pretty big achievement for the astronomical world. It showed many that there was the possibility of many other planets existing in our solar system past Saturn. There wasn’t really that much thought put into identifying other planets past Saturn since almost everyone did not think that there would be planets out there. This all changed after William Herschel’s discovery in 1781. While it does mark an important achievement for the astronomical world, I do not think that he was really intending on finding a new planet, since it was generally accepted that there were not more for the past 2,000 years. There were many questions asked, such as is it large enough, is it circular, what is its orbit, and other things.
I found the article Winter Wonderworlds extremely fascinating as I have a keen interest in the study of space. I believe that the author took an interesting interpretation of the study of other planets and moons that could appeal to all audiences. For a good understanding of this article it would be helpful to have prior knowledge of the planets and moons in our solar system and a good understanding of astronomy. However, it is not necessary that you understand these points when reading the article as the article explains these things in a basic way. This article I found made several good points about what the other planets and moons in our solar system are like on the surface. The article talked about these things in weird and wonderful ways through the pretence of a winter wonderworld. In conducting more research on the topic of ice on other planets and moons I found an interesting website that discusses the idea of ice volcanoes. The web page “Ice volcanoes in outer space?” discusses the eruption of liquid water mixed with ammonia on Pluto’s neighbouring object, Charon. It discusses that on Charon the eruption quickly formed into an ice crystal structure. However though these points are just theory as there is no way at this current point in time for us to properly find out what is happening on Charon. It is
This spacecraft swung past Jupiter on February 2007 for a gravity boost before continuing on the rest of the venture of the mission that was intended for a flyby of the dwarf planet, Pluto. On July 14, 2015, New Horizons made the closest approach to Pluto, sending back many pictures of the planet. Now, as part of the extended mission (pending NASA approval), the spacecraft is expected to head further into the Kuiper Belt. If able to, New Horizons will be examining ancient, icy mini-worlds that are at least a billion miles outside of Neptune’s orbit.
In ancient Rome, Saturn wad a god of agriculture, liberation, and time. His reign was known as a Golden Age of peace and abundance, thus making him a god of wealth. The Temple of Saturn in the Roman Forum held the state treasury. During what was most likely the most famous of the Roman Festivals, was the Saturnalia which took place in December celebrating Saturn. The Saturnalia was a tie of feasting, role reversal, free speech, gift giving, and revelry. In memory of the Golden Age of Rome, each year the Saturnalia was observed on December 17 at his temple on the Forum Romanum. This temple, below the Capitoline Hill, contained the Royal Treasury and is one of the oldest in Rome. The Saturnalia was one of the major events of the year. Originally only one day, it was later extended to seven days. During this festival, business was suspended, the roles of master and slaves were reversed, moral restrictions were loosened and gifts were exchanged. Offerings made in his honor were done with uncovered heads, contrary to the Roman tradition. In contrast to his festival, Saturn himself was never very popular.
Myths are not dissimilar to fairy tales, legends, and sagas, but its period is distinctly different from usual existential time. It is considered as an expression of childhood experiences, and it also explains the origin and meaning of the world. According to Long (1994), “The term mythology may describe a certain body of myths, for example, Greek, African, or Scandinavian, or it may refer to the study of myths” (p.694). These collections of narratives are superior when it comes to influencing different areas of knowledge. There are numerous types of mythology, but Ancient Greece is the one that has given an immense influence on modern society.
Mercury 's surface is extremely barren. Its proximity to the sun and its lack of an atmosphere mean that this planet 's surface is hot and dry. The surface is heavily cratered, having been hit by many rocky bodies. With no geologic activity to re-cover the surface, it will remain cratered, rocky, and barren for the remainder of its lifetime. Every thing is still, due to lack of wind, which also makes it very hot. Rocks and dust litter this tiny planet. It 's surface is extremely similar to our own moon, only with extreme temperature variations. There are no water deposits and no storms on Mercury; it simply floats stagnant through space. Brown and barren, tortured by the extreme heat of the sun, this planet 's surface geology is limited.
Pluto shouldn’t be a planet because it's not exactly like the other planets. According to NASA they state that Pluto cannot be a planet because it only meets 2 out of three criteria for a “true” planet. First of all, the object must orbit the sun. Second, the object must have a circular shape because of gravity. This shape must be created and maintained by the object's own gravitational force. Last but not least, the object must have “cleared the neighborhood” around its orbit of other objects. Pluto can’t be a planet also because it's surrounded by other planets the same size and shape. Which according to USA today cannot be considered a planet. Pluto also tends to go into Neptune's orbit. Which means that Pluto isn’t a planet because “true”
William Hershal was raised in a family of musicians. As he grew older he studied from a book entitled “Harmonics”, by Robert Smith. After reading it another one of Smith’s book caught his attention, “The Compleat System of Optiks”, an introduction to telescope construction.
The Kuiper Belt is a wide, massive belt beyond the orbit of Neptune which orbits around the sun. The belt itself is between 30 AU and 50 AU away from the sun and the size is around 20 AU's wide. It is thought to contain tens of millions of ice bodies called KBO's or Kuiper Belt Objects which is mostly made out of water, methane, and ammonia. The most famous of the objects is of course Pluto.
Neptune, named after the Roman god of the sea, is the furthest planet from the sun, and the smallest gas planet in diameter. Neptune's mass is much larger than its size though, it is the third largest planet in mass, but the fourth largest in size. It has a circumference of 96,685 miles. It takes 165 years to travel around the sun. That's 34 years older than the recorded for longest living person. Even so, a day on Neptune is only 18 hours long!
Io is Jupiter’s third largest moon and its fifth moon in terms of distance. Io is slightly larger than Earth’s moon, and is described by NASA as “Looking like a giant pizza covered with melted cheese and splotches of tomato and ripe olives” It is different from Jupiter’s other colder moons in that it is very volcanically active. In fact, Io is the most volcanically active body in our solar system! Io’s environment is affected by a multitude of factors including gravitational pull, tides, volcanic activity, atmosphere, magnetic fields, and radiation. These factors influence Io’s environment and physical appearance to a large degree and make Io one of the most interesting planetary moons in our solar system.