1 AU b. 149,600,000 km c. 8.3 light-minutes d. all of the above 5. Distances between stars are usually measured in a. light-minutes b. astronomical units c. light-days d. light-years 6. Einstein developed an equation that changed ideas about the sun’s energy source by describing the relationship between a. mass and energy b. gravity
Describe two differences between ptolemy’s and Copernicus’s models- What is at the centre of the model and the way in which the planets followed smaller circles in their orbits in ptolemy’s model. 3. Describe two similarities between the two models- The number of planets and the circular orbits are the same. 4. Suggest one way in which our current model of the solar system is different from Copernicus’s- There are more planets because we have more scientific equipment to look out further into space so we discover new things in space.
Use the fact that the brightness of a point source, such as a star, varies inversely as the square of its distance from an observer to show that the space telescope can see about seven times farther than a ground-based telescope. This situation "Makes sense". The reason that this makes sense would be simply explained by stating that the closer you are to something the easier it is to see. If a ground telescope has to first see through clouds and the atmosphere to see specific stars. That would mean that the Hubble Telescope being in space would not have to work as hard as the ground telescope and also give a better view because of the distance situation.
The illusion is based off of the moon’s size and the objects and landscapes connected with it. When away from objects the moon then has even more of an illusion to you than normal because it has a problem with consistency of
There are many theories about what is going to happen, including: galactic alignment, prophecies of Armageddon, impossible scientific experiments, the Mayan-predicted apocalypse, and many more. Many scientists believe that galactic alignment in 2012 is going to bring natural and even cosmic disasters on earth. Galactic Alignment is when the sun is in position between the earth and the black hole in the center of the Milky Way galaxy. Many people believe that when the sun and earth become aligned with the black hole in the center of the Milky Way galaxy, this will bring about the end of the world in 2012 because it
targetofopportunity. n.d. Web. 24 January, 2013 5. Glenn Fiery.“Iwo Jima Flag Raising A Brief History.” mclcal.
Physical size = angular size x 2 x distance / 360 • Understand that constellations are groups of stars as seen from the Earth – the stars may not be close to each other at all • Our view of the celestial sphere is determined by where we stand on the Earth o Study the diagrams that show the path of stars as they rise and set and how those paths appear to differ depending on your location on the Earth • Know what causes the seasons (tilt of the Earth’s axis to it’s orbital plane) o Depend on how Earth’s axis affects the directness of sunlight o Sun’s altitude is also higher in Summer and Lower in Winter Summer solstice – highest path Winter solstice – lowest path Equinoxes – sun rises at exactly due east and sets exactly due west • Review the Moon’s phases • New Moon • Waxing (Right side of moon visible) o Waxing
(2 points) Mars. B) Cosmic Origin of the Element CLUE: The substance collected has properties indicating that it contains a few different elements. The elements in your sample were formed in a supernova and released into space when the star exploded. Small stars and cosmic rays are not hot enough to form them. Look at the chart below to see which elements are typically formed in supernova and which ones are not.
The work of Lomonosov and Bernoulli in this field led him to conclude that the atmosphere on the Earth and on other planets must be considerably more transparent than he had thought. Euler took a very active role in the observation of the movement of Venus across the face of the sun, despite the fact that at this time he was nearly blind. He had already lost one eye in the course of an experiment on light diffraction in 1738, and an eye disease and botched operation in 1771 led to an almost total loss of
Thus, to say that a planet is in the constellation Leo is to partially locate the planet on the celestial sphere, just as saying that Knoxville is in Tennessee is to partially locate the city on the surface of the Earth. As for states, modern constellations have irregular boundaries that have been agreed upon for various reasons, perhaps not always completely logical. Here is a Web page devoted to constellations and their stars, and a Java applet allowing interactive display of stars and constellations. See also this Java applet (select from the list of constellations that appears for a scrollable map centered on that constellation). Finally, here is a constellation pronunciation