Orbit

they would not occur without the Sun. Neither a lunar nor a solar eclipses would be possible without the Sun, again. Also, although this is not a direct dependence upon the Sun, if the Sun did not give the Earth an object to orbit, the Moon may never have fallen into orbit with the Earth. 2. How are seasons created? The seasons are created by the tilt, 23.5 degrees, of the Earth’s axis and the position of the Earth in terms of its revolution around the Sun. A hemisphere will experience summer…

There is several different theories of how the sun and the planets orbit in the universe. The geocentric models such as the Greek Geocentric model portrays the earth in the center of the universe. The heliocentric models such as the Tycho Heliocentric Model displays the sun being more the center of the universe. Greek Geocentric Model In many ancient civilizations such as the Ancient Greeks, the geocentric model was the predominant theory. An observation of this particular model was the stars,…

potentially be cut off from us forever if we are not careful with how we handle the already growing space debris problem today. Space debris, in this context, is all of the bits of destroyed man-made technology left in space, some of which fall into orbit. While in orbit, this space debris poses massive risks to active satellites or other spacecraft. Some efforts are being made to reduce the volume of debris but they may not be enough. It is entirely possible that a chain reaction has already…

the northern hemisphere is tilted away from the Sun. The fixed tilt angle and orbit of Earth results in the apparent drift of the position of sunrise and sunset between summer and winter solstices. Retrograde Motion of Mars In relation to geocentrism, Mars on an epicycle would interfere with the deferent circle surrounding earth. It appears that it is moving backward because the epicycle rotates faster than it orbits earth. The eastward motion of Mars is enhanced when the motion of the planet…

Space is the last frontier, with discoveries made every single day. Gravity has a huge impact on these discoveries. We know that gravity impacts the solar system in many ways and all throughout the galaxy but how does gravity affect these things? All objects have a gravitational pull. This means that this force had a huge impact on the formation of our solar system and other solar systems in our galaxy and in the universe. First of all, a phet simulation showed us this. When mass 1=50 kg and…

enophthalmos (emedicine). Enophthalmos occurs due to a rise in the volume of the orbit thereby leading to the backwards displacement of the globe into the orbit. However, if the injury occurred very recently, the enophthalmos could potentially be masked by orbital edema and as the swelling subsides, it will become more visible (Aao, 2015). It is important to keep in mind that as a result of increased volume of the orbit, it can give the appearance of a ptosis which is known as a pseudo ptosis.…

the Earth’s orbit, the gravitational force of the Earth is no longer significant and Mars is too far away so its gravitational pull has no influence either. The only object that exerts a substantial force of gravitational attraction with the spacecraft is the Sun. Because of this it is called the 2 Body Problem. It can be demonstrated using Newton’s Law of Gravitation that the orbit in a 2 Body Problem is a conic. What could be asked now is, what is the shape of the planets orbit? Kepler in…

Exoplanets - what are they? Exoplanets, short for 'Extra solar planets', are planets that orbit around stars other than our sun. Nearly 2000 exoplanets have been discovered (1969 planets in 1249 planetary systems including 490 multiple planetary systems as of 1 October 2015). Why can't we detect exoplanets by direct observation - even with telescopes? The stars exoplanets orbit are much bigger and much brighter than the exoplanets, which are too near and are blurred out by the star's light. We…

We researched Pluto’s orbit, physical properties, and history to give us a broad understanding of what Pluto is like and to see if a mission to Pluto would be feasible and beneficial to NASA. We found that Pluto has a unique orbit compared to other planets — it is both extremely elliptical and sometimes crosses Neptune's orbit. Pluto is also incredibly small and cold. It contains ice on it’s surface and was only discovered about 100 years ago. Because of what I learned, I believe that It would…

\cite{old}. This accident, caused by a propulsion malfunction, put nearly three hundred debris into low-Earth orbit (LEO). The number of satellite fragmentations increased through the 1970s and…