exoplanets

12
Exoplanets Presented by Jodi McCullough

Upload: jmcculathotmail

Post on 08-Aug-2015

24 views

Category:

Science


2 download

TRANSCRIPT

ExoplanetsPresented by Jodi McCullough

Exoplanet or Extra Solar Planet

Planet that orbits another star, stellar remnant or brown dwarf.

First Exoplanet

1992Radio astronomers Aleksander Wolszczan and Dale Frail Two planets orbiting the pulsar PSR 1257+12

First Exoplanet around Main Sequence Star

1995 Michel Mayor and Didier Queloz of the University of Geneva

G-type star 51 Pegasi

As of May 29, 2015

1928 planets in 1219 planetary systems confirmed.

484 multiple planetary systems

There is at least one planet on average per star in our galaxy.

Around 1 in 5 Sun-like stars have an "Earth-sized“planet in the habitable zone.

How to Find an Exoplanethttps://www.youtube.com/watch?v=AnX7ExBjrHw

Selection BiasLarge Planets are easier to detect.

Naming

Star bStar cStar d

51 Pegasi b

www.exoplanets.org