NEXT MEETING 7:30 p.m., Monday, November 3, 2014
... "In this case, it is telling us that this cratered little moon may be more complex than we thought." Models developed by Tajeddine and co-authors from France and Belgium indicate that, if Mimas is hiding a liquid water ocean, it lies 15 to 20 miles (24 to 31 kilometers) beneath the moon's impact-bat ...
... "In this case, it is telling us that this cratered little moon may be more complex than we thought." Models developed by Tajeddine and co-authors from France and Belgium indicate that, if Mimas is hiding a liquid water ocean, it lies 15 to 20 miles (24 to 31 kilometers) beneath the moon's impact-bat ...
File
... elevator (a) accelerates downward, (b) accelerates upward, (c) is in free fall, (d) moves upward at constant speed? In which case would your weight be the least? When would it be the same as when you are on the ground? ...
... elevator (a) accelerates downward, (b) accelerates upward, (c) is in free fall, (d) moves upward at constant speed? In which case would your weight be the least? When would it be the same as when you are on the ground? ...
In This Issue The Hottest Planet in the Solar System President`s Article
... Earth to complete exactly one full rotation on its axis (using a distant star … not our sun … as a way to measure when the rotation is completed.) But in that same amount of time, the Earth will have moved forward in its approximately 365¼ day orbit around the Sun — by just shy of 1º. This means the ...
... Earth to complete exactly one full rotation on its axis (using a distant star … not our sun … as a way to measure when the rotation is completed.) But in that same amount of time, the Earth will have moved forward in its approximately 365¼ day orbit around the Sun — by just shy of 1º. This means the ...
Science Through Postcard
... It is not uncommon that at the end of a public lecture, I am surrounded by autograph-hunters, mostly students. Rather than oblige them with my signature, I decided to try out an experiment, on such occasions. I asked the typical autograph-aspirant to send me a question on a postcard. The question sh ...
... It is not uncommon that at the end of a public lecture, I am surrounded by autograph-hunters, mostly students. Rather than oblige them with my signature, I decided to try out an experiment, on such occasions. I asked the typical autograph-aspirant to send me a question on a postcard. The question sh ...
The Resounding Universe
... eyes are made for looking at celestial bodies and ears to follow their harmonious motions. Aristotle (c. 384 BC – c. 322 BC) explains why mortals cannot hear these sounds. In fact, a sound or a noise can be perceived only when in contrast with its opposite, namely the absence of the sound itself. Ho ...
... eyes are made for looking at celestial bodies and ears to follow their harmonious motions. Aristotle (c. 384 BC – c. 322 BC) explains why mortals cannot hear these sounds. In fact, a sound or a noise can be perceived only when in contrast with its opposite, namely the absence of the sound itself. Ho ...
Document
... Because it was wrong. The later discovery of Uranus, Neptune, Pluto, and the others prove that ...
... Because it was wrong. The later discovery of Uranus, Neptune, Pluto, and the others prove that ...
The Sky This Month Apr May 2015
... Mercury, (at magnitude -1.0 and fading) climbing in the western evening sky, has already commenced the best apparition of the year. It will reach greatest eastern elongation (farthest from the Sun) on May 7th, when it will be most easily seen and set at 10:25 pm. After that it will drop towards the ...
... Mercury, (at magnitude -1.0 and fading) climbing in the western evening sky, has already commenced the best apparition of the year. It will reach greatest eastern elongation (farthest from the Sun) on May 7th, when it will be most easily seen and set at 10:25 pm. After that it will drop towards the ...
Does the solar orbit about the Galaxy influence terrestrial biodiversity?
... Diamonds along the Sun’s track indicate its placement at intervals of 100 Myr. We see that for this assumed pattern speed, the Sun has passed through only two arms over the last 500 Myr. However, if we assume a lower but still acceptable pattern speed of !p ¼ 14:4 km s"1 kpc"1 (shown in Fig. 3 for ! ...
... Diamonds along the Sun’s track indicate its placement at intervals of 100 Myr. We see that for this assumed pattern speed, the Sun has passed through only two arms over the last 500 Myr. However, if we assume a lower but still acceptable pattern speed of !p ¼ 14:4 km s"1 kpc"1 (shown in Fig. 3 for ! ...
Midterm Exam, AST 203, Spring 2012 Thursday, March 15, 3:00
... • The natural motion of of the elements was towards their “proper place”: for Earth and Water, it was towards the center of the earth, while the natural motion of Air and Fire was away from the center of the Earth. (3 points) • The material of the heavens, or Celestial Spheres, was made of a fifth e ...
... • The natural motion of of the elements was towards their “proper place”: for Earth and Water, it was towards the center of the earth, while the natural motion of Air and Fire was away from the center of the Earth. (3 points) • The material of the heavens, or Celestial Spheres, was made of a fifth e ...
Astro 204: Practice Questions Some of these questions are a bit
... energy be larger or smaller than that of the Sun? To answer this, do a crude, order-ofmagnitude estimate of the fraction of mass lost as a function of mass. c. A wind of particles, termed the solar wind, is seen streaming radially from the Sun. It is made mostly of protons and electrons, and at the ...
... energy be larger or smaller than that of the Sun? To answer this, do a crude, order-ofmagnitude estimate of the fraction of mass lost as a function of mass. c. A wind of particles, termed the solar wind, is seen streaming radially from the Sun. It is made mostly of protons and electrons, and at the ...
PHYSICAL SCIENCE STUDY GUIDE CHAPTER 10: 1. What are the
... 3. State and explain each of Kepler’s three laws of planetary motion. 4. Mention several of Galileo’s telescopic observations and explain how they support the heliocentric viewpoint of the solar system. ...
... 3. State and explain each of Kepler’s three laws of planetary motion. 4. Mention several of Galileo’s telescopic observations and explain how they support the heliocentric viewpoint of the solar system. ...
AST1100 Lecture Notes
... spend the largest part of their lives on the main sequence. During the time on the main sequence they move little in the HR-diagram. Towards the end of their lives, when the hydrogen in the core has been exhausted, the stars increase their radii several times becoming giants or supergiants. The surf ...
... spend the largest part of their lives on the main sequence. During the time on the main sequence they move little in the HR-diagram. Towards the end of their lives, when the hydrogen in the core has been exhausted, the stars increase their radii several times becoming giants or supergiants. The surf ...
Rings
... There’s no place to stand on Jupiter or Saturn, but be sure to bring your spacesuit. Both planets have big systems of moons, and when you visit them you will be able to watch erupting volcanoes, stroll through a methane rain storm, and swim in Saturn’s rings. It will be interesting, but it is no pla ...
... There’s no place to stand on Jupiter or Saturn, but be sure to bring your spacesuit. Both planets have big systems of moons, and when you visit them you will be able to watch erupting volcanoes, stroll through a methane rain storm, and swim in Saturn’s rings. It will be interesting, but it is no pla ...
Brock physics - Brock University
... 35. Neutron stars with masses greater than about 3 solar masses do not exist because neutron degeneracy pressure is not strong enough to balance gravity, and so (a) the neutron star explodes into a Type II supernova. (b) the neutron star explodes into a Type Ib supernova. (c) * the neutron star coll ...
... 35. Neutron stars with masses greater than about 3 solar masses do not exist because neutron degeneracy pressure is not strong enough to balance gravity, and so (a) the neutron star explodes into a Type II supernova. (b) the neutron star explodes into a Type Ib supernova. (c) * the neutron star coll ...
Suggested 5 Year Strategic Goals
... the laboratory, and throughout the universe. These processes generally involve the interactions of ionized gases (plasmas) with gravitational and electromagnetic (both radiation and DC) fields, and with neutral matter. The physical domain of interest ranges from deep inside the Sun to the Earth’s up ...
... the laboratory, and throughout the universe. These processes generally involve the interactions of ionized gases (plasmas) with gravitational and electromagnetic (both radiation and DC) fields, and with neutral matter. The physical domain of interest ranges from deep inside the Sun to the Earth’s up ...
4P38.pdf
... The results from the “Sun in Time” program suggest that the coronal X-ray-EUV emissions of the young main-sequence Sun were ~100-1000 times stronger than those of the present Sun. Similarly, the transition region and chromospheric FUV-UV emissions of the young Sun are expected to be 20-60 and 10-20 ...
... The results from the “Sun in Time” program suggest that the coronal X-ray-EUV emissions of the young main-sequence Sun were ~100-1000 times stronger than those of the present Sun. Similarly, the transition region and chromospheric FUV-UV emissions of the young Sun are expected to be 20-60 and 10-20 ...
B - Department of Physics and Astronomy
... C. *the loss of rotational energy through the emission of beams of charges particles D. friction between the stellar surface and the surrounding nebular material. 23. How does the diameter of a black hole (size of the event horizon) depend on the mass inside the black hole? A. the greater the mass, ...
... C. *the loss of rotational energy through the emission of beams of charges particles D. friction between the stellar surface and the surrounding nebular material. 23. How does the diameter of a black hole (size of the event horizon) depend on the mass inside the black hole? A. the greater the mass, ...
SELF-TEST: True or False? 1. The Sun is a rather
... 1. The Sun is a rather normal star. HINT 2. The average density of the Sun is significantly greater than the density of the Earth. HINT 3. The Sun's diameter is about 10 times that of Earth. HINT 4. The Sun's differential rotation indicates that it is not solid. HINT 5. In the solar radiation zone, ...
... 1. The Sun is a rather normal star. HINT 2. The average density of the Sun is significantly greater than the density of the Earth. HINT 3. The Sun's diameter is about 10 times that of Earth. HINT 4. The Sun's differential rotation indicates that it is not solid. HINT 5. In the solar radiation zone, ...
Star evolution - El Camino College
... • Contrast the life history of a low-mass star with the life history of a high-mass star. • Explain how black holes are formed and their effect on their surrounding environment. ...
... • Contrast the life history of a low-mass star with the life history of a high-mass star. • Explain how black holes are formed and their effect on their surrounding environment. ...
List of Astronomical Events for 2016
... Each is eclipse is only visible in a small number of locations. The location of an eclipse depends on the Earth’s position and tilt, the time, duration and precision of the alignment. There are two main types of eclipses: Solar Eclipse: The New Moon moves directly between the Sun and Earth, blocking ...
... Each is eclipse is only visible in a small number of locations. The location of an eclipse depends on the Earth’s position and tilt, the time, duration and precision of the alignment. There are two main types of eclipses: Solar Eclipse: The New Moon moves directly between the Sun and Earth, blocking ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.