Summary Images for Known Extrasolar Planets
First set of extrasolar planets
Second set of extrasolar planets
Third set of extrasolar planets
Fourth set of extrasolar planets
Because these images are so large, we have chosen to list them seperately. Viewing all four images will show you all of the known extrasolar planets to date (November 29, 2001). Mercury, Venus, Earth, Mars and Jupiter are listed for reference.
The first thing to note about these images is that there is a mass key on the fourth image. Mass is given in MJ, Mass of Jupiter. So for instance, an extrasolar planet that has a mass of 3.9 MJ is 3.9 times as massive as Jupiter. Jupiter's mass is 1,898x10^24 kilograms, so the extrasolar planet's mass is 3.9 X 1,898x10^24 kilograms.
The name of each planet is written in white on that bar. Most planets are simply a derivation of the parent star's name. Eccentricity of the planet's orbit is listed at the end of each bar. And the distance from the parent star can be read by looking at the AU bar at the top and bottom of each image.
Shop Windows to the Universe Science Store!
Our online store
on science education, classroom activities in The Earth Scientist
specimens, and educational games
You might also be interested in:
To date, 76 extrasolar planets are known. Yesterday, the first detection of an extrasolar planetary atmosphere was announced! As well, this is the first chemical analysis to be done on the atmosphere of...more
Astronomers Dr. Geoffrey Marcy and Dr. Paul Butler announced that, after 15 years of observation, their team has found 13 extrasolar planets (or exoplanets), and that one of these exoplanets may be somewhat...more
Scientists have recently discovered that thousands of Adelie Penguins thrive in patches of the chilly Southern Ocean near Antarctica's coastline. In these special areas of the ocean, called polynyas,...more
A new study has found that a mixing of two different types of magma is the key to the historic eruptions of Mount Hood, Oregon's tallest mountain, and that eruptions often happen in a relatively short...more
Researchers have found a primitive Earth mantle reservoir on Baffin Island in the Canadian Arctic. Geologist Matthew Jackson and his colleagues from a multi-institution collaboration report the finding--the...more
Some geologic faults that appear strong and stable, slip and slide like weak faults. Now an international team of researchers has laboratory evidence showing why some faults that 'should not' slip are...more
It was another exciting and frustrating year for the space science program. It seemed that every step forward led to one backwards. Either way, NASA led the way to a great century of discovery. Unfortunately,...more