Presentation is loading. Please wait.

Presentation is loading. Please wait.

Cover Page Star Chart Photograph Radial Velocity Habitable Zone Orbits System Data Planetary Life? Further Info Over 20 light-years away, Earth-like planets?

Published byElijah Russell Modified over 8 years ago

Similar presentations

Presentation on theme: "Cover Page Star Chart Photograph Radial Velocity Habitable Zone Orbits System Data Planetary Life? Further Info Over 20 light-years away, Earth-like planets?"— Presentation transcript:

1 Cover Page Star Chart Photograph Radial Velocity Habitable Zone Orbits System Data Planetary Life? Further Info Over 20 light-years away, Earth-like planets? Credit: ESO

2 Cover Page Star Chart Photograph Radial Velocity Habitable Zone Orbits System Data Planetary Life? Further Info Location R.A.: 15h19m26s Dec: -07d43’20”

3 Cover Page Star Chart Photograph Radial Velocity Habitable Zone Orbits System Data Planetary Life? Further Info Image ca. 20 arc minutes wide. Credit: DSS

4 Cover Page Star Chart Photograph Radial Velocity Habitable Zone Orbits System Data Planetary Life? Further Info Credit: ESO

5 Cover Page Star Chart Photograph Radial Velocity Habitable Zone Orbits System Data Planetary Life? Further Info Credit: ESO

6 Cover Page Star Chart Photograph Radial Velocity Habitable Zone Orbits System Data Planetary Life? Further Info Orbits

7 Cover Page Star Chart Photograph Radial Velocity Habitable Zone Orbits System Data Planetary Life? Further Info Constellation:Libra Spectrum:M3 Age vs Sun:nearly 2x Distance:20.4 ly Magnitude:10.6 mv Sun masses:0.31 Sun radii:0.38 Sun luminosity:0.00202 Temperature:3,250 o K Sun magnitude:3.81 mv Earth masses:15.65 Distance:0.04AU Period:5.37 d Eccentricity:0 Earth masses:5.36 Distance:0.07AU Period:12.93 d Eccentricity:0.17 Earth masses:7.09 Distance:0.22AU Period:66.8 d Eccentricity:0.38 b c d Star cataloged as Gliese 581 1AU = 149.598 mio km (93.5 mio miles) System Data Earth masses:1.94 Distance:0.03AU Period:3.15 d Eccentricity:0 e

8 Cover Page Star Chart Photograph Radial Velocity Habitable Zone Orbits System Data Planetary Life? Further Info Is Life out there on ‘c’ and ‘d’? Pros: Super-Earth-class size Situated in Gliese 581’s HZ Existence of liquid water possible Grainy or ocean covered surface Cons: Radiation impact from the star Probably tidally locked Anyway: The system is “only” 20.4 light-years away and therefore a travel target for the future by when our successors will know more about this planetary system, which may count more than the four planets known to date. Suppose it would be possible to travel near the speed of light, the journey would take about 6.1 years one-way at 1g acceleration. Credit: ESO

9 Cover Page Star Chart Photograph Radial Velocity Habitable Zone Orbits System Data Planetary Life? Further Info Further information: The Crowded Universe by Alan Boss on Fora TV http://fora.tv/2009/03/13/Alan_Boss_The_Crowded_Universe The Extrasolar Planet Encyclopaedia http://exoplanet.eu Planetquest http://planetquest.jpl.nasa.gov The Kepler Mission http://kepler.nasa.gov

Download ppt "Cover Page Star Chart Photograph Radial Velocity Habitable Zone Orbits System Data Planetary Life? Further Info Over 20 light-years away, Earth-like planets?"

Similar presentations

9-6 Identify the characteristics of the planets. 1. Planet Chart on pg. 8 2. Habitable Zone Pg. 7—Work on this as your warm-up.

9-6 Identify the characteristics of the planets. 1. Planet Chart on pg Habitable Zone Pg. 7—Work on this as your warm-up.
Destination: A Planet like Earth Caty Pilachowski IU Astronomy Mini-University, June 2011 Caty Pilachowski Mini-University 2011.

Destination: A Planet like Earth Caty Pilachowski IU Astronomy Mini-University, June 2011 Caty Pilachowski Mini-University 2011.
Gliese 581 planetary system Image by Lynette Cook.

Gliese 581 planetary system Image by Lynette Cook.
Astronomy190 - Topics in Astronomy

Astronomy190 - Topics in Astronomy
Detectability of Habitable Planets with the Space Interferometry Mission Evan Bierman, Chris McCarthy, Debra Fischer, Geoff Marcy San Francisco State University.

Detectability of Habitable Planets with the Space Interferometry Mission Evan Bierman, Chris McCarthy, Debra Fischer, Geoff Marcy San Francisco State University.
First direct image of extrasolar planets. 10.7 billion miles.

First direct image of extrasolar planets billion miles.
Extra-Solar Planets Astronomy 311 Professor Lee Carkner Lecture 24.

Extra-Solar Planets Astronomy 311 Professor Lee Carkner Lecture 24.
Extra-Solar Planets Astronomy 311 Professor Lee Carkner Lecture 24.

Extra-Solar Planets Astronomy 311 Professor Lee Carkner Lecture 24.
Extrasolar planets. Finding planets Finding planets around other stars is hard!  need to look for something very faint very close to something that is.

Extrasolar planets. Finding planets Finding planets around other stars is hard!  need to look for something very faint very close to something that is.
Today’s APODAPOD  Begin Chapter 8 on Monday– Terrestrial Planets  Hand in homework today  Quiz on Oncourse The Sun Today A100 – Ch. 7 Extra-Solar Planets.

Today’s APODAPOD  Begin Chapter 8 on Monday– Terrestrial Planets  Hand in homework today  Quiz on Oncourse The Sun Today A100 – Ch. 7 Extra-Solar Planets.
Gravitational Potential Energy When we are close to the surface of the Earth we use the constant value of g. If we are at some altitude above the surface.

Gravitational Potential Energy When we are close to the surface of the Earth we use the constant value of g. If we are at some altitude above the surface.
6.5 Other Planetary Systems Our goals for learning: How do we detect planets around other stars? How do extrasolar planets compare with those in our own.

6.5 Other Planetary Systems Our goals for learning: How do we detect planets around other stars? How do extrasolar planets compare with those in our own.
Lecture 34. Extrasolar Planets. reading: Chapter 9.

Lecture 34. Extrasolar Planets. reading: Chapter 9.
Astro 101 Slide Set: Kepler’s Exoplanet Discoveries Exceed 1,000 0 Topic: Exoplanets Concepts: Transit Detection, Exoplanet Statistics Mission: Kepler.

Astro 101 Slide Set: Kepler’s Exoplanet Discoveries Exceed 1,000 0 Topic: Exoplanets Concepts: Transit Detection, Exoplanet Statistics Mission: Kepler.
Solar System J. Wunderlich, Ph.D. Image from

Solar System J. Wunderlich, Ph.D. Image from
The top image, which shows half of the surveyed area, displays nine different stars, circled in green, that contain planets. The planets were discovered.

The top image, which shows half of the surveyed area, displays nine different stars, circled in green, that contain planets. The planets were discovered.
Pages 700 - 721.  Star color is an indication of temperature  Very hot stars (30,000 K) emit high-energy, low wavelength radiation. What color do they.

Pages  Star color is an indication of temperature  Very hot stars (30,000 K) emit high-energy, low wavelength radiation. What color do they.
The Sun and other stars The Sun is a Star and a source of light for everyone on Earth The light from the Sun takes 8.3 minutes to reach us Like all stars,

The Sun and other stars The Sun is a Star and a source of light for everyone on Earth The light from the Sun takes 8.3 minutes to reach us Like all stars,
Our Place in Space. The Scale of the Universe Imagine (don’t write down): – You are driving on the 401 at 100km/h – You accelerate until you are going.

Our Place in Space. The Scale of the Universe Imagine (don’t write down): – You are driving on the 401 at 100km/h – You accelerate until you are going.
Light travels at 186,000 miles per second. A light-year is the distance that light travels in one year. Multiply the number of seconds in one year by.

Light travels at 186,000 miles per second. A light-year is the distance that light travels in one year. Multiply the number of seconds in one year by.

Similar presentations

Ads by Google