A time travel of 14 billion years
... • The cloud shrinks to form a star in its centre. • The rotation of the cloud produces a disk. • In the disk rocky planetesimals form near the star. • Ice made planetisimals in the outer parts. • Matter accumulates near these planetisimals while the solar wind sweeps the circumstant space. ...
... • The cloud shrinks to form a star in its centre. • The rotation of the cloud produces a disk. • In the disk rocky planetesimals form near the star. • Ice made planetisimals in the outer parts. • Matter accumulates near these planetisimals while the solar wind sweeps the circumstant space. ...
Olivewood Gardens
... All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission is hereby granted to ...
... All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission is hereby granted to ...
Day 2
... Finally, the rate of fusion becomes high enough to establish gravitational equilibrium. At this point, fusion becomes self-sustaining and the star settles into its hydrogen burning, main sequence life. The main sequence phase is the longest phase of a star's life, about 10 billion years for a star w ...
... Finally, the rate of fusion becomes high enough to establish gravitational equilibrium. At this point, fusion becomes self-sustaining and the star settles into its hydrogen burning, main sequence life. The main sequence phase is the longest phase of a star's life, about 10 billion years for a star w ...
Astronomy 102, Spring 2003 Solutions to Review Problems
... Given that we’ve talked about how far apart stars are in the galaxy, they almost never run into each other. (It’s a different matter in the cores of globular clusters, and even right at the center of our galaxy, but consider the Solar neighborhood for now.) Thus, if there is a binary star system, al ...
... Given that we’ve talked about how far apart stars are in the galaxy, they almost never run into each other. (It’s a different matter in the cores of globular clusters, and even right at the center of our galaxy, but consider the Solar neighborhood for now.) Thus, if there is a binary star system, al ...
7. The Solar System
... revolve in the same direction as the major planets; comets, however, may move in the opposite direction. Cometary orbits can be very elongated, even hyperbolic. Most of the satellites circle their parent planets in the same direction as the planet moves around the Sun. Only the motions of the smalle ...
... revolve in the same direction as the major planets; comets, however, may move in the opposite direction. Cometary orbits can be very elongated, even hyperbolic. Most of the satellites circle their parent planets in the same direction as the planet moves around the Sun. Only the motions of the smalle ...
Nov-17 - X-Squared Radio
... NASA is reporting that the sun will do it's cyclic magnetic pole shift very soon (within 3-4 months but some scientists are saying within 1 month). This is a very regular event (every 11 years), so there is nothing to fear here. However, knowing how much solar flares have been affecting us now compa ...
... NASA is reporting that the sun will do it's cyclic magnetic pole shift very soon (within 3-4 months but some scientists are saying within 1 month). This is a very regular event (every 11 years), so there is nothing to fear here. However, knowing how much solar flares have been affecting us now compa ...
Exercise set five
... information as you can about what star was used and from where it was observed. List the date and time of each occultation. ...
... information as you can about what star was used and from where it was observed. List the date and time of each occultation. ...
Slide 1
... Venus is the second closest planet to the Sun, but it is the hottest. This is because Venus has loads of atmosphere! Venus’ atmosphere is 93 times thicker than Earth’s! The whole planet is covered in a thick layer of clouds – you can’t even see the surface! Venus’ atmosphere is mostly made of carbon ...
... Venus is the second closest planet to the Sun, but it is the hottest. This is because Venus has loads of atmosphere! Venus’ atmosphere is 93 times thicker than Earth’s! The whole planet is covered in a thick layer of clouds – you can’t even see the surface! Venus’ atmosphere is mostly made of carbon ...
Third Grade Astronomy
... Objects in the Sky have patterns of movement. The Sun, for example, appears to move across the sky in the same way everyday, but its path changes slowly over the seasons. The moon moves across the sky on a daily basis much like the Sun. The Sun, Moon and stars all have properties, locations and move ...
... Objects in the Sky have patterns of movement. The Sun, for example, appears to move across the sky in the same way everyday, but its path changes slowly over the seasons. The moon moves across the sky on a daily basis much like the Sun. The Sun, Moon and stars all have properties, locations and move ...
Name - Physics
... 2. An elevator weighing 10,000 N is supported by a steel cable. Determine the tension in the cable when the elevator is accelerated upward at 3.0 m/s2. ...
... 2. An elevator weighing 10,000 N is supported by a steel cable. Determine the tension in the cable when the elevator is accelerated upward at 3.0 m/s2. ...
GEARS Workshop Monday - Georgia Southern University
... • So is luminosity measuring – adding up all the light at all wavelengths… • How do we really measure temperature and ...
... • So is luminosity measuring – adding up all the light at all wavelengths… • How do we really measure temperature and ...
October 2011
... mass object ever imaged beyond our solar system. It’s definately larger than Jupiter, and has three times the mass. More distant than Pluto, it has an orbit of 872 earth years. It probably has a Saturn-like ring, but with an enormous radii equal to Jupiter’s four Galilean moons. Out beyond this chun ...
... mass object ever imaged beyond our solar system. It’s definately larger than Jupiter, and has three times the mass. More distant than Pluto, it has an orbit of 872 earth years. It probably has a Saturn-like ring, but with an enormous radii equal to Jupiter’s four Galilean moons. Out beyond this chun ...
Stan Woosley (UCSC)
... And so – maybe – most massive stars blow up the way Hans and others talked about: Rotation and magnetic fields unimportant in the explosion (but might be important after an explosion is launched) Kicks and polarization from “spontaenous symmetry breaking” in conditions that started spherical. ...
... And so – maybe – most massive stars blow up the way Hans and others talked about: Rotation and magnetic fields unimportant in the explosion (but might be important after an explosion is launched) Kicks and polarization from “spontaenous symmetry breaking” in conditions that started spherical. ...
Star Formation - University of Redlands
... A new star reaches the main sequence when inward gravitational collapse is: a. Halted by degeneracy pressure in the core. b. Halted when the atoms are pushed up against one another and contraction stops. c. Finally balanced by outward thermal pressure from nuclear reactions. d. Finally balanced by r ...
... A new star reaches the main sequence when inward gravitational collapse is: a. Halted by degeneracy pressure in the core. b. Halted when the atoms are pushed up against one another and contraction stops. c. Finally balanced by outward thermal pressure from nuclear reactions. d. Finally balanced by r ...
Jupiter Reading Comprehension Worksheet
... Jupiter has its own 'mini solar system' of 49 moons. Scientists are most interested in the Galilean satellites the four largest moons discovered by Galileo Galilei in 1610. Europa, may have an ocean under its frozen surface. Calisto's crater-pocked landscape may be the oldest in the solar system. Ga ...
... Jupiter has its own 'mini solar system' of 49 moons. Scientists are most interested in the Galilean satellites the four largest moons discovered by Galileo Galilei in 1610. Europa, may have an ocean under its frozen surface. Calisto's crater-pocked landscape may be the oldest in the solar system. Ga ...
Pluto and Kuiper Belt Object Notes
... Kuiper suggested a few decades ago that these objects would exist and should be the source of many of the comets that we see. As a result of his work, these objects are now known as Kuiper-Belt Objects or Trans-Neptunian Objects. 2) The Kuiper-Belt is probably about 10 A.U. thick and extends from th ...
... Kuiper suggested a few decades ago that these objects would exist and should be the source of many of the comets that we see. As a result of his work, these objects are now known as Kuiper-Belt Objects or Trans-Neptunian Objects. 2) The Kuiper-Belt is probably about 10 A.U. thick and extends from th ...
Planets
... Sun is 300,000 times more massive than Earth So Sun moves 1/300,000 as much as Earth Both orbit a Center of Mass which is 300,000x closer to center of Sun than Earth ...
... Sun is 300,000 times more massive than Earth So Sun moves 1/300,000 as much as Earth Both orbit a Center of Mass which is 300,000x closer to center of Sun than Earth ...
Precise determination of the motion of planets and some
... the solar oblateness and relativistic corrections have been accounted for. However, a comparison of this ephemeris with numerical ephemerides which began to be constructed in IMCCE shows differences between them up to 100 m over three decades. Furthermore, the values of the initial conditions of thes ...
... the solar oblateness and relativistic corrections have been accounted for. However, a comparison of this ephemeris with numerical ephemerides which began to be constructed in IMCCE shows differences between them up to 100 m over three decades. Furthermore, the values of the initial conditions of thes ...
The Milky Way - Montgomery College
... Many absorption lines also from heavier elements (metals): Population ...
... Many absorption lines also from heavier elements (metals): Population ...
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.