500 exoplanets discovered before 2015 (about a quarter of all known exoplanets, many of which are named after the 16th century German mathematician and astronomer Johannes Kepler) arranged by temperature and density in a poster by Martin Vargic.
Super-earths, hot jupiters, hot neptunes, waterworlds, gas dwarfs, superdense diamond planets.
The gang’s all here.
Huge explorable version.
Sponsored Link
Hot Jupiter, aw yeah.
Jupiter isn’t an exoplanet.
You’re not an exoplanet.
Gorgeous.
Awwhh…look at lil’ Kepler 42d, cute as a button!!
Took a while to find it, but yes very cute :)
Em, just out of curiosity, how can they give such detail to the surfaces from measuring the light distortion/dimming as the planet passes in front of a star? I believe mass spectrometry is involved but this detail is surely not known?
You are correct.
It is 99.999% boll!x , the sizes are often estimated from wobbles and blinks as the planet orbits the star.
https://en.m.wikipedia.org/wiki/Methods_of_detecting_exoplanets#Transit_photometry
(First graph indicates, in red, the number of planets faintly seen as a blob)
If only there was s way of following a link in the post to the original image where it’s explained why the exoplanets are depicted this way and that its all just an educated guess and the planets may all turn out to be totally different from how they’re depicted in the image and that Deluded is a silly cock.
Oh wait, there is.
I followed the link. It gave zero useful information and admitted it was made-up.
” All visualisations are based on the estimated radius and temperature of the planet, however other factors, such as density, age or stellar metallicity were also taken into consideration. These visualisations were meant to be as accurate as possible*, however the true nature of the portrayed exoplanets might turn out to be radically different.”
*Accurate portrayals of blurs and the cause of star wobbles based on the density and spectral analysis of the parent star and the radius and temperature of the detected planets (rarely observed) assumed by mass calculations and expected orbital radius.
Try again?
…. ie total made up rubbish with the only frame of reference being our feeble knowledge of the local rocks and stuff.
The chart was nicely organised and the colours are pretty.
Derp derp Tony!!
Well when Earth 2.0. is finally detected.
will the general populace have enough firearms. on hand to maintain Red Dawn Option if ET needs an attitude adjustment
ETs will love us, as long as they don’t take themselves too seriously ^_^
(Seriously though, we have a terrible history of first encounters)