Log in
HomeClass Notes1,200,000CA670,000

AST101H1 Lecture Notes - Lecture 3: Solar System, Oort Cloud, Ford Escape

17 views3 pages
kirk
16 Dec 2018
School
UTSG
Department
Astronomy & Astrophysics
Course
AST101H1
Professor
Bryan Gaensler

For unlimited access to Class Notes, a Class+ subscription is required.

elizabethkandelaki and 39782 others unlocked
AST101H1 Full Course Notes
23
AST101H1 Full Course Notes
Verified Note
23 documents

Document Summary

A solar system consists of a star orbited by planets, moons, and lots of debris (comets, asteroids, dust) Solar system or the solar system means our solar system solar system or star system can be any such system. The inner solar system: mercury, venus, earth and mars. The outer solar system: jupiter, saturn, uranus, neptune, many dwarf planets and comets. Rocky exterior with a huge iron core. Temperature fluctuates between -170 c and 425 c. Only two probes ever sent to mercury. Runaway greenhouse effect makes it even hotter than mercury: 460c all the time. Surface and atmosphere heavily modified by life. Was probably warmer and wetter in past. Many surface features probably carved by water. Opportunity still going (45 km and counting) Many thousands or millions of rubble piles . Material left over from formation of the solar system, prevented from turning into a planet by tides from jupiter. Thick gaseous atmosphere surrounds a giant ball of liquid hydrogen.

Get access

Grade+
$40 USD/m
Billed monthly
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
10 Verified Answers
Class+
$30 USD/m
Billed monthly
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
7 Verified Answers

Related Questions

Which, if any, of the following statements is/are true?

1)Our galaxy, The Milky Way, is a member of The Local Group, whichis one of several groups of galaxies located in the VirgoSupercluster.
2)Most astrophysicists believe that our Solar System formed from animmense cloud of gas and dust about 4-1/2 million years ago.
3)Planets are believed to have formed by a process known asaccretion.
4)Two key elements in the Condensation Theory of PlanetaryFormation are 5)Conservation of Angular Momentum and CondensationNuclei.
6)The name of the second largest object in the Universe is TheSouthern Wall.
7)In our Solar System, the four jovian planets, Jupiter, Saturn,Uranus, and Neptune, are separated from the four terrestrialplanets, Mercury, Venus, Earth, and Mars, by the Kuiper Belt.
8)Our star, The Sun, is located on the Orion Arm, about 26,000light-years from the center of the Andromeda Galaxy.
9)It takes a photon of light about 4-1/5 years to travel from ourSolar System to the second closest star to Earth, ProximaCentauri.
10)The full range of human knowledge about our Universe spans about40 or 41 orders of magnitude on a spatial scale and about 13.7billion years on a temporal scale.
11)It takes a photon of light about 5-1/2 hours to travel from theSun to the orbit of the former planet Pluto.