Here are the 24 letters of the Greek alphabet, and how to pronounce them:. Within the chromosphere, the temperature is actually lower than at the surface. What is the origin of the lunar craters and seas? Ultimately, on Mars, there will be an average delay of 20 minutes between transmissions. What are rilles and wrinkle ridges?
For this reason, many would argue that the Oort Cloud is a fiction, or at least, an unproven hypothesis. The Moon may be partially eclipsed for up to three-and-a-half hours. Psychological Stress — The cramped conditions of space flight, and having to live so close to others, can result in low motivation, irritability and depression. Produce a series of detailed telescopic drawings or photographs to record the passage of a suitable celestial event, for example a transit, occultation or comet. It is debatable whether galactic clusters and, indeed, superclusters will drift apart over time, overcoming their mutual gravitational attraction, or meet in the middle with a catastrophic crunch. A sundial works because it points towards the Pole Star in the northern hemisphere which stays in the same place as Earth rotates.
After noon, the shadow will start to grow again. The Plough is a very useful and recognisable star pattern, but it forms part of a bigger pattern, a constellation, called The Great Bear.
GCSE astronomy coursework – constellations
Earth also lies tilted on its axis by A few observational details included. Auth with social network: Many such rocks are believed to be dropping all around us, constantly. GCSE astronomy coursework — constellations.
Putting telescopes in space neatly avoids this problem. Further, Apollo astronaut Alfred Worden talks frankly about the challenges of sharing a cramped cabin with two colleagues for the few days of their mission.
Thus, if we know the exact time that local noon occurs in another place, we can work out how far couraework or west that place is by the difference between their local noon and our local noon — i.
The video is in three parts. Edwin Hubble was the first astronomer to realise that the Universe is expanding.
GCSE Astronomy Controlled Assessment – ppt download
I apologise for the poor sound quality of part two, but stick with it. What are some of the difficulties and dangers? The first courseworrk a lady narrator is delightful, but wrong.
Most wavelengths of the electromagnetic EM spectrum are absorbed by our atmosphere, so cannot be studied from the ground. Your exam requires the use of kilometres for this calculation, not miles. The most popular objects in this list include: Still, it astronpmy be stressed that this is an apparent similarity, owing to our unique perspective.
GCSE Astronomy Controlled Assessment B4: Constellation Photography
What theories attempt to explain the origin of water on Earth? Pictured above is my daughter Georgie, inspecting a genuine meteorite of chondrite composition, discovered somewhere in Africa. There is experimental evidence to support this.
This is the Bayer designation system, named after astronomer Johann Bayer who invented it. All his life, Tycho clung to the geocentric model of our Solar System. Individual sunspots last from a few days to several weeks.
GCSE Astronomy – Newton’s Notepad
What do galaxies look like? The Leonids result from the debris left by Comet Tempel-Tuttlea short-period comet that passes by the Sun every 33 years. The above images show projected examples. Just like Top of the Popsbright stars have low numbers. By contrast, open clusters typically contain a few hundred younger stars. After leaving the corona, they continue to hurtle through space at speeds between kilometres per second.
What do the following terms relate to? And that was on a short trip to the Moon, so a Mars mission lasting over a year could take a hard toll on the crew.
The main criticism constellatinos this theory: It is right to describe both neutron stars and black holes as supernova remnants.