Wikipedia

File:Exoplanet Comparison PSR B1257+12 A.png

Original file ‎(1,040 × 480 pixels, file size: 326 KB, MIME type: image/png)

Summary

Description
English: Comparison of several possible sizes for the exoplanet PSR B1257+12 A with the Solar System planet Earth, using approximate models of planetary radius as a function of mass[1] for several possible compositions, based on mass reported in the Open Exoplanet Catalogue[2] as of 2015-11-14. Models include:
 
water world with a rocky core, composed of 75% H2O, 3% Fe, 22% MgSiO3
 
hypothetical pure water (ice) planet, the largest size for PSR B1257+12 A without a significant H/He envelope
 
rocky terrestrial "Earth-like" planet, composed of 67% Fe, 32.5% MgSiO3
 
hypothetical pure iron planet, PSR B1257+12 A's theoretical smallest size

PSR B1257+12 A is not likely to be smaller than the iron planet, and will be considerably larger than the water planet if significant H or He is present. For non-transiting planets, all modeled sizes will be underestimates to the extent that the planet's actual mass is larger than the reported minimum mass.

  1. ↑ Seager, S.; M. Kuchner, C. A. Hier-Majumder and B. Militzer (2007). "Mass–radius relationships for solid exoplanets". The Astrophysical Journal 669: 1279–1297. DOI:10.1086/521346. Retrieved on 2015-11-14.
  2. ↑ Open Exoplanet Catalogue (2015-11-14). Retrieved on 2015-11-14.
Date
Source Own work, incorporating public domain images for reference planets (see below)
Author Aldaron, a.k.a. Aldaron
Other versions
Related graphs
  • Exoplanet discoveries, by year; color-coded by discovery method
    Exoplanet discoveries, by year; color-coded by discovery method
  • Scatter plot of exoplanet period and mass data; color-coded by discovery method
    Scatter plot of exoplanet period and mass data; color-coded by discovery method
  • Exoplanet mass-radius scatter plot, emphasizing super-Earths
    Exoplanet mass-radius scatter plot, emphasizing super-Earths
This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Resizing to produce appropriately scaled Earth comparison image. The original can be viewed here: The Earth seen from Apollo 17.jpg: . Modifications made by Aldaron.

Licensing:

I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

Captions

Add a one-line explanation of what this file represents

此文件中描述的项目

depicts

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current21:51, 31 December 2009Thumbnail for version as of 21:51, 31 December 20091,040 × 480 (326 KB)Aldaron{{Information |Description=TBD |Source={{own}} |Date= |Author= Aldaron |Permission= |other_versions= }}
The following pages on the English Wikipedia use this file (pages on other projects are not listed):

Global file usage

The following other wikis use this file:

Retrieved from "https://en.wikipedia.org/wiki/File:Exoplanet_Comparison_PSR_B1257%2B12_A.png"