Lecture 23 Slides
... Most extrasolar planets cannot be observed directly in pictures for two reasons: • The angle between a star and its planets, as seen from Earth, is too small to resolve with our biggest telescopes. • A star like the Sun would be a billion times brighter than the light reflected off its planets. ...
... Most extrasolar planets cannot be observed directly in pictures for two reasons: • The angle between a star and its planets, as seen from Earth, is too small to resolve with our biggest telescopes. • A star like the Sun would be a billion times brighter than the light reflected off its planets. ...
PHYSICS 1500 - ASTRONOMY TOTAL
... Neither Mars nor Venus have conditions to support a rich biosphere. Which of the following is not a contributing factor to this situation? (a) Mars is close to the asteroid belt, which resulted in widespread cratering in the heavy bombardment period. (b) Venus is a little close to the sun, resulting ...
... Neither Mars nor Venus have conditions to support a rich biosphere. Which of the following is not a contributing factor to this situation? (a) Mars is close to the asteroid belt, which resulted in widespread cratering in the heavy bombardment period. (b) Venus is a little close to the sun, resulting ...
The closest extrasolar planet: A giant planet around the M4 dwarf Gl
... much too cold to possibly sustain liquid water above the 1 bar level. Gl 876 is closer to us than all other stars orbited by known extra-solar planets, by at least a factor of 3. At d=4.7 pc, Gl 876 is the 40th closest stellar system to our Sun, and the 53rd closest star. Since M dwarfs make up ∼80% ...
... much too cold to possibly sustain liquid water above the 1 bar level. Gl 876 is closer to us than all other stars orbited by known extra-solar planets, by at least a factor of 3. At d=4.7 pc, Gl 876 is the 40th closest stellar system to our Sun, and the 53rd closest star. Since M dwarfs make up ∼80% ...
Week 9
... How does Uranus’ (about 4 Earth radii, 15 Earth masses) density compare to Jupiter’s (about 11 Earth radii, 318 Earth masses)? (Enter the ratio rounded to one decimal place.) ...
... How does Uranus’ (about 4 Earth radii, 15 Earth masses) density compare to Jupiter’s (about 11 Earth radii, 318 Earth masses)? (Enter the ratio rounded to one decimal place.) ...
ph507lecnote06
... • Prototypes: Earth, Venus, Mars • Primarily composed of rocks • In the Solar System (ONLY) orbital radii less than giant planets Much more massive terrestrial planets could exist (>10 Earth masses), though none are present in the Solar System. The Solar system also has asteroids, comets, planetary ...
... • Prototypes: Earth, Venus, Mars • Primarily composed of rocks • In the Solar System (ONLY) orbital radii less than giant planets Much more massive terrestrial planets could exist (>10 Earth masses), though none are present in the Solar System. The Solar system also has asteroids, comets, planetary ...
(AU): Average distance from Earth to Sun
... if all stars same distance from Earth. Apparent Magnitude: How bright a star appears to be to an observer on Earth. - Depends on distance. Closer = brighter ...
... if all stars same distance from Earth. Apparent Magnitude: How bright a star appears to be to an observer on Earth. - Depends on distance. Closer = brighter ...
Episode 14: Planetary paths-2
... the year, he found they had lots of errors. Tycho’s observed positions of Jupiter and Saturn did not match with the positions given in the almanacs; they were off by several days. This was a turning point in Tycho’s life; he decided to take upon himself the task of making accurate observations of t ...
... the year, he found they had lots of errors. Tycho’s observed positions of Jupiter and Saturn did not match with the positions given in the almanacs; they were off by several days. This was a turning point in Tycho’s life; he decided to take upon himself the task of making accurate observations of t ...
Test #3
... b. the giant and supergiant stage is unstable. c. the giant and supergiant stage is very short. d. helium is very rare. 33. Why don't all supernova remnants contain pulsars? a. All supernova remnants do contain pulsars. b. Some supernova explosions form white dwarfs instead of the neutron stars nece ...
... b. the giant and supergiant stage is unstable. c. the giant and supergiant stage is very short. d. helium is very rare. 33. Why don't all supernova remnants contain pulsars? a. All supernova remnants do contain pulsars. b. Some supernova explosions form white dwarfs instead of the neutron stars nece ...
What do we mean by habitable zone?
... put a planet in that star’s habitable zone (which would be farther away because the star would be much more luminous than the Sun), life would be hard-pressed to evolve much even if it managed to originate. As a reminder, the earliest traces of life on Earth go back to something like 800 million ye ...
... put a planet in that star’s habitable zone (which would be farther away because the star would be much more luminous than the Sun), life would be hard-pressed to evolve much even if it managed to originate. As a reminder, the earliest traces of life on Earth go back to something like 800 million ye ...
AST 101 Final Exam DO NOT open the exam until
... 20.) You are watching TV in the year 3014, and an ad for a new weight less plan comes on. The plan has you go to the distant planet ”Weightlossian”, which is larger in size than the Earth, but has a much smaller mass than the Earth. The advertisement boasts that you’ll have shed pounds the moment yo ...
... 20.) You are watching TV in the year 3014, and an ad for a new weight less plan comes on. The plan has you go to the distant planet ”Weightlossian”, which is larger in size than the Earth, but has a much smaller mass than the Earth. The advertisement boasts that you’ll have shed pounds the moment yo ...
a 03 Scale and Comparing Planets to Stars ppt
... • This Means that the light we see from Andromeda Galaxy left there 2.2 million years ago. • It is therefore very possible that some of the stars in Andromeda have exploded as a supernova or gone out long ago. The message of these star finishing events just has not gotten to us yet! ...
... • This Means that the light we see from Andromeda Galaxy left there 2.2 million years ago. • It is therefore very possible that some of the stars in Andromeda have exploded as a supernova or gone out long ago. The message of these star finishing events just has not gotten to us yet! ...
Life in the Universe
... Constraints on star systems: 1. Old enough to allow time for evolution (rules out high-mass stars ~1%) 2. Need to have stable orbits (might rule out binary/multiple star systems ~50%) 3. Size of habitable zone: region where a planet of the right size could support liquid water ...
... Constraints on star systems: 1. Old enough to allow time for evolution (rules out high-mass stars ~1%) 2. Need to have stable orbits (might rule out binary/multiple star systems ~50%) 3. Size of habitable zone: region where a planet of the right size could support liquid water ...
A Star is Born worksheet and key
... 10. How is a planetary nebula formed? When the outer layers of the red giant drift into space. 11. For how long do white dwarfs radiate their leftover heat? Billions of years. 12. How long is the life phase of a red supergiant? Millions of years. 13. What’s two differences between red giants and red ...
... 10. How is a planetary nebula formed? When the outer layers of the red giant drift into space. 11. For how long do white dwarfs radiate their leftover heat? Billions of years. 12. How long is the life phase of a red supergiant? Millions of years. 13. What’s two differences between red giants and red ...
here - Stargazers Club
... Wobble method - an orbiting planet will pull on its star, causing it to wobble as it rotates. We can detect this wiggle in the light we receive from it Most planets found are the size of Jupiter Big dog/small dog pulling on owner is like the Earth on sun - extremely hard to detect Transit Method - a ...
... Wobble method - an orbiting planet will pull on its star, causing it to wobble as it rotates. We can detect this wiggle in the light we receive from it Most planets found are the size of Jupiter Big dog/small dog pulling on owner is like the Earth on sun - extremely hard to detect Transit Method - a ...
Vampy Astronomy Syllabus
... related to both observational astronomy and physical astronomy. While some of you may have some astronomyrelated experience, the assumption is that each student is a tabula rasa when it comes to understanding the field. So, we will start at the ground level and work our way up. However, you should n ...
... related to both observational astronomy and physical astronomy. While some of you may have some astronomyrelated experience, the assumption is that each student is a tabula rasa when it comes to understanding the field. So, we will start at the ground level and work our way up. However, you should n ...
Life in Space & Drake`s Equation
... Constraints on star systems: 1. Old enough to allow time for evolution (rules out high-mass stars ~1%) 2. Need to have stable orbits (might rule out binary/multiple star systems ~50%) 3. Size of habitable zone: region where a planet of the right size could support liquid water ...
... Constraints on star systems: 1. Old enough to allow time for evolution (rules out high-mass stars ~1%) 2. Need to have stable orbits (might rule out binary/multiple star systems ~50%) 3. Size of habitable zone: region where a planet of the right size could support liquid water ...
The definition of a planet - the Solar System Support Pages
... planet?” Does this definition allow us to answer that question, does it solve the problem? No, it doesn’t solve the problem, it merely changes the value of X. There are already twelve more candidates, and to decide if they qualify will require knowledge that is going to be very difficult to get. Co ...
... planet?” Does this definition allow us to answer that question, does it solve the problem? No, it doesn’t solve the problem, it merely changes the value of X. There are already twelve more candidates, and to decide if they qualify will require knowledge that is going to be very difficult to get. Co ...
Origin of Our Solar System
... accretionary disk model. The student is expected to: a) analyze how gravitational condensation of solar nebular gas and dust can lead to the accretion of planetesimals and protoplanets; b) investigate thermal energy sources, including kinetic heat of impact accretion, gravitational compression, and ...
... accretionary disk model. The student is expected to: a) analyze how gravitational condensation of solar nebular gas and dust can lead to the accretion of planetesimals and protoplanets; b) investigate thermal energy sources, including kinetic heat of impact accretion, gravitational compression, and ...
FREE Sample Here
... 16. During the course of a single night, a planet that is moving in retrograde motion will move A. East to west. B. West to east. C. Not at all. D. Randomly about the sky. ...
... 16. During the course of a single night, a planet that is moving in retrograde motion will move A. East to west. B. West to east. C. Not at all. D. Randomly about the sky. ...
Planetary system
A planetary system is a set of gravitationally bound non-stellar objects in orbit around a star or star system. Generally speaking, systems with one or more planets constitute a planetary system, although such systems may also consist of bodies such as dwarf planets, asteroids, natural satellites, meteoroids, comets, planetesimals and circumstellar disks. The Sun together with its planetary system, which includes Earth, is known as the Solar System. The term exoplanetary system is sometimes used in reference to other planetary systems.A total of 1968 exoplanets (in 1248 planetary systems, including 490 multiple planetary systems) have been identified as of 1 October 2015.Of particular interest to astrobiology is the habitable zone of planetary systems where planets could have surface liquid water.