Name: Date: Period: 1. are natural or artificial bodies that revolve around more massive bodies such as planets. (Satellites or Comets) 2. Most lunar craters are the result of . (volcanoes or impacts) 3. The time it takes for Earth to around the sun is 1 year.
B. meteorology. C. geology. *D. cosmology. 9. The passing of the Moon directly between Earth and the Sun is a/an A. meteor shower.
Astronomy 10 Chapter 11 1. Both used to be normal stars but the white dwarf ran out of hydrogen, they are both subjected to gravitational theories. A Neutron star is a fluid of neutrons, as hot at its surface as the inside of the sun and has a greater magnetic field. 3. Because its density is so high, neutrons spin in the same way that electrons do so must obey the Pauli Exclusion Principle.
The solar system C. Our own Milky Way galaxy D. A planetary nebula Feedback Correct Marks for this submission: 5.00/5.00. Question 4 Correct Mark 5.00 out of 5.00 Flag question Question text Astronomers can use telescopes on the ground to observe electromagnetic radiation of some wavelengths, but other wavelengths are
Under The Astronomic International Union (IAU) definitions, there are eight planets in the Solar System. In order of increasing distance from the Sun, they are the four terrestrials, Mercury, Venus, Earth, and Mars, then the four gas giants, Jupiter, Saturn, Uranus, and Neptune. Originally, there were nine planets in the Solar System. Nowadays, Pluto has been considered as the dwarf planet. Six of the planets are orbited by one or more natural satellites.
A spacecraft, named Horizon, launched in 2006, and it will hopefully reach Pluto in 2015. Pluto has a huge rock, like the moon,
Which planet does it orbit? | | |Pictures of the moon Europa show large cracks. What causes these |Tectonic stress | |cracks? | | |Which moon is the largest satellite in the solar system? Which |Ganyemede, Jupiter
Sunspots near the Sun's equator rotate at a faster rate than those near the solar poles. The following high resolution image shows a close-up view of a moderately large sunspot. The field of view covers about 60000 km horizontally, and 38000 km vertically. The penumbral diameter of this sunspot is about 16500 km; the Earth, with an equatorial radius of 6378 km, would cover up the umbra but not the penumbra. Sunspots can be quite small ([IMAGE]1500 km diameter), and reach sizes up to 50000 km.
Cladius used the term epicycle to help describe retrograde motion. His model was called epicycle on deferent. In his explanation, the earth is stationary and the planets, moon, and sun rotate and orbit around it. So the line of sight makes it seems as though the planet has stopped and reversed. An astronomer names Nicolaus Copernicus the proved Cladius’ theory incorrect.
Meteorites likely traveled in space for millions of years before visiting us here on Earth. They were bathed in cosmic rays, but are not dangerous or radioactive. If your rock looks just like other Earth rocks, it probably is one. Meteorites look and feel different from the ordinary rocks around them. Recently fallen