Search this site

Related Sites

Virtual Planetary Laboratory

Center for Exoplanets and Habitable Worlds

Habitability of Exoplanets Research Group

Planetary Ecospheres

Biospheric Theory and Modelling Group

Exolife

318days since
Curiosity Landing

(CC) 2013 PHL@UPRA

HEC: Graphical Catalog Results

Last Update: June 3, 2013
This page show summary visualizations of the Habitable Exoplanets Catalog (HEC). The Data section have more details. Check the Methods section for an explanation of the metrics and classifications used here. Scientific plots are available here.


Contents

  1. 1 General Characteristics (details of Kepler-61b will be available soon)
    1. 1.1 Kepler-62 e: K-Warm Superterran Exoplanet in the Constellation Lyra
    2. 1.2 Gliese 581 g: M-Warm Superterran Exoplanet in the Constellation Libra
    3. 1.3 Gliese 667C c: M-Warm Superterran Exoplanet in the Constellation Scorpius
    4. 1.4 Kepler-22 b: G-Warm Superterran Exoplanet in the Constellation Cygnus
    5. 1.5 Tau Ceti e: G-Warm Superterran Exoplanet in the Constellation Cetus
    6. 1.6 Kepler-62 f: K-Warm Superterran Exoplanet in the Constellation Lyra
    7. 1.7 Gliese 163 c: M-Warm Superterran Exoplanet in the Constellation Dorado
    8. 1.8 HD 40307 g: K-Warm Superterran Exoplanet in the Constellation Pictor
    9. 1.9 Gliese 581 d: M-Warm Superterran Exoplanet in the Constellation Libra
  2. 2 Current and Pending Potential Habitable Exoplanets (to be updated soon)
  3. 3 Star Map of the Habitable Universe
  4. 4 The Periodic Table of Exoplanets

General Characteristics (details of Kepler-61b will be available soon)

The following section contains more specific information about these exoplanets. The images show artistic representations of each exoplanet, an actual image of their parent star in false colors (taken by NASA's WISE Mission), and a diagram of their constellation location in the night sky. All these exoplanets are classified as superterrans (aka Super-Earths), which are planets with masses between two to ten Earth masses. The poster available here has these images in higher resolution.


Kepler-62 e: K-Warm Superterran Exoplanet in the Constellation Lyra


Mass
(Earth Masses)		 Radius
(Earth Radii)		 Surface Temp
(°C)		 Orbital Period
(days)		 Distance
(light years)		 Age
(Gyears)
3.6* 1.6 31* 122 1200 ~7
* estimated values, observed data in the Extrasolar Planet Encyclopedia, Exoplanets Data Explorer, and NASA Exoplanet Archive.

Discovered in 2013 by Scientists from the Following Countries: 
United States, Denmark, UK, Australia, Netherlands, France
       
 

Gliese 581 g: M-Warm Superterran Exoplanet in the Constellation Libra


Mass
(Earth Masses)		 Radius
(Earth Radii)		 Surface Temp
(°C)		 Orbital Period
(days)		 Distance
(light years)		 Age
(Gyears)
2.6* 1.4* 10* 32 20.2 8
* estimated values, observed data in the Extrasolar Planet Encyclopedia.

Discovered in 2010 by Scientists from the Following Countries: United States
 

Gliese 667C c: M-Warm Superterran Exoplanet in the Constellation Scorpius


Mass
(Earth Masses)		 Radius
(Earth Radii)		 Surface Temp
(°C)		 Orbital Period
(days)		 Distance
(light years)		 Age
(Gyears)
4.9* 1.9* 27* 28 23.6 <2
* estimated values, observed data in the Extrasolar Planet Encyclopedia, Exoplanets Data Explorer, and NASA Exoplanet Archive.

Discovered in 2011 by Scientists from the Following Countries: France, Switzerland, Belgium, Portugal
   
 

Kepler-22 b: G-Warm Superterran Exoplanet in the Constellation Cygnus


Mass
(Earth Masses)		 Radius
(Earth Radii)		 Surface Temp
(°C)		 Orbital Period
(days)		 Distance
(light years)		 Age
(Gyears)
6.4* 2.1 31* 290 535.9 ?
* estimated values, observed data in the Extrasolar Planet Encyclopedia, Exoplanets Data Explorer, and NASA Exoplanet Archive.

Discovered in 2011 by Scientists from the Following Countries: 
United States, Denmark, UK, Australia, Netherlands, France
       
 


Tau Ceti e: G-Warm Superterran Exoplanet in the Constellation Cetus


Mass
(Earth Masses)		 Radius
(Earth Radii)		 Surface Temp
(°C)		 Orbital Period
(days)		 Distance
(light years)		 Age
(Gyears)
5.0* 1.9* 68* 168 11.9 5.8
* estimated values, observed data in the Extrasolar Planet Encyclopedia.

Discovered in 2012 by Scientists from the Following Countries:  
UK/Finland, Chile, Australia, United States.
    
 

Kepler-62 f: K-Warm Superterran Exoplanet in the Constellation Lyra


Mass
(Earth Masses)		 Radius
(Earth Radii)		 Surface Temp
(°C)		 Orbital Period
(days)		 Distance
(light years)		 Age
(Gyears)
2.6* 1.4 -30* 267 1200 ~7
* estimated values, observed data in the Extrasolar Planet Encyclopedia, Exoplanets Data Explorer, and NASA Exoplanet Archive.

Discovered in 2013 by Scientists from the Following Countries:  
United States, Denmark, UK, Australia, Netherlands, France
       
 

Gliese 163 c: M-Warm Superterran Exoplanet in the Constellation Dorado


Mass
(Earth Masses)		 Radius
(Earth Radii)		 Surface Temp
(°C)		 Orbital Period
(days)		 Distance
(light years)		 Age
(Gyears)
8.3* 2.4* 61* 26 48.9 >1
* estimated values, observed data in the Extrasolar Planet Encyclopedia.

Discovered in 2012 by Scientists from the Following Countries: France, Germany, Portugal, Switzerland, and Belgium.
    
 

HD 40307 g: K-Warm Superterran Exoplanet in the Constellation Pictor
Mass
(Earth Masses)		 Radius
(Earth Radii)		 Surface Temp
(°C)		 Orbital Period
(days)		 Distance
(light years)		 Age
(Gyears)
8.2* 2.4* 6* 198 41.7 ~4.5
* estimated values, observed data in the Extrasolar Planet Encyclopedia, and NASA Exoplanet Archive.

Discovered in 2012 by Scientists from the Following Countries: UK/Finland, Germany, United States.
   
 

Gliese 581 d: M-Warm Superterran Exoplanet in the Constellation Libra


Mass
(Earth Masses)		 Radius
(Earth Radii)		 Surface Temp
(°C)		 Orbital Period
(days)		 Distance
(light years)		 Age
(Gyears)
6.9* 2.2* -37* 67 20.2 8
* estimated values, observed data in the Extrasolar Planet Encyclopedia, Exoplanets Data Explorer, and NASA Exoplanet Archive.

Discovered in 2007 by Scientists from the Following Countries: Switzerland, Portugal, France
  
 
Important Notes
  • Gliese 581g, HD 40307g, and Tau Ceti e are planet candidates and new observations are necessary to confirm them.
  • Gliese 667Cc was originally announced on November 2011 by a team from France, Switzerland, Belgium, and Portugal. However, it was later independently and formally announced on February 2012 by a team from the United States, Germany, Chile, Italy, Australia, and UK. Therefore, other exoplanet catalogs might list different discoverers for Gliese 667Cc.
  • Kepler-22 b is an exoplanet in the border of our habitability definition. Its habitability is much uncertain than the others.
  • Some values for mass and radius, as indicated, where estimated or modeled assuming expected inclinations for the planetary system or from an empirical mass-radius relationship. Surface temperature estimates where done for comparison only and assumed a planet with a similar Earth-like atmosphere. There are large uncertainties in these estimates.
  • The discoverers countries correspond to the country of the institution of the scientists at the moment of the publication of their discovery paper. This do not necessarily correlates with the nationality of the discoverers. Some of the exoplanets observations are done with telescopes outside of the author's institutions or with the support of others, thus other countries are generally involved as well in these discoveries.

Current and Pending Potential Habitable Exoplanets (to be updated soon)

The image below shows to scale all the potential habitable exoplanet in the Habitable Exoplanets Catalog (HEC), including confirmed and unconfirmed exoplanets (planet candidates). Those in green color have temperatures more similar to Earth (mesoplanets). Red ones are slightly hotter (thermoplanets) and blue ones are slightly colder (psychroplanets) but still considered potentially habitable, at least for microbial life. These thermal regime assumptions are based on a similar terrestrial atmosphere.


Star Map of the Habitable Universe

Location in the night sky of the stars with potential habitable exoplanets (colored circles). There are two in Gliese 581. Click the image for larger version. Here are also maps for all exoplanets including only those visible to the naked eye. CREDIT: PHL @ UPR Arecibo and Jim Cornmell.

The Periodic Table of Exoplanets

The Periodic Table of Exoplanets shows all confirmed or NASA Kepler exoplanets classified into eighteen thermal-mass categories. The number of exoplanets in each category is shown in the center of each frame and as a percent in the lower left. The number of those already confirmed in the NASA Kepler Candidates are shown in the lower right. The diagram also shows the number of multiple stellar systems in each case (top right). ME = Earth masses. More details about the table are available here.