Commons is a freely licensed media file repository. You can help.
Summary
DescriptionComet Swift-Tuttle distance vs year.svg
English: Graphs of the distance of Comet Swift-Tuttle from Earth in Astronomical Units and gigametres (millions of kilometres) for years 800 BCE to 2500 CE by CMG Lee based on data at http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1994MNRAS.266..305Y&page_ind=10. Approaches in the shaded area are not visible to the unaided eye. The dashed line shows year 2016 (as an approximation for the "current year").
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.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue
You may select the license of your choice.
Captions
Add a one-line explanation of what this file represents
{{Information |Description ={{en|1=Graphs of the distance of Comet Swift-Tuttle from Earth in Astronomical Units and gigametres (millions of kilometres) for years 800 BCE to 2500 CE by CMG Lee based on data at http://articles.adsabs.harvard.edu/cgi-...