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File:1e15m comparison cat's eye nebula barnard 68 one light year.png

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English: Comparison of sizes of objects with order of magnitude 1e15m: one light year radius circle with yellow Vernal Point arrow; Cat's Eye Nebula (NGC_6543) on left with Bok Globule Barnard 68 adjacent; Great January comet (Comet C/1910 A1)'s orbit shown as long extreme ellipse passing behind Barnard 68; light month shell (small yellow sphere) inside which a light week shell. All sizes to scale, but nebulae are artificially positioned for illustrative purposes only. No transparency version.
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created by running Paul Stansifer's GPL-2 POV-Ray source files modified by me, 84user, and using w:en:POV-Ray, and w:en:IrfanView.

84user's contribution (inside POV-Ray files: adjusting coordinates, changing light source and other parameters) is public domain and source files used are described at User:84user/Size comparison.

Cat's Eye Nebula and Stingray Nebula, see "Licensing" below.

Physical information is based on the Wikipedia articles and elsewhere (see POVRay source files) about the respective lengths.

Paul Stansifer's contributions to this image (POV-Ray code) are available under the GPL, v. 2, and other licenses. See User:Paul Stansifer/Size comparison for more details and the other licenses. See [1]
Author Paul Stansifer, User:84user, ESA, NASA and ESO (and see "source")

Licensing edit

Because this image was rendered using Paul Stanfiser's POV GPL v2 source code together with separately licensed source images, it is an aggregated derivative. Therefore you must apply all applicable licenses.

  • For Paul's POV-Ray source derivative, choose one or more of these:
GNU head This work is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2. This work is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See version 2 of the GNU General Public License for more details.
GNU head 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. Subject to disclaimers.
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic 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.
Attribution: Paul Stansifer
This media was created by the European Southern Observatory (ESO).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public ESO website, along with the texts of press releases, announcements, pictures of the week, blog posts and captions, are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible."
To the uploader: You must provide a link (URL) to the original file and the authorship information if available.
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 4.0 International 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.
  • Public domain Stingray Nebula and Cat's Eye Nebula images license:
Public domain This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.
  • Stingray Nebula image credit: NASA, Matt Bobrowsky, Orbital Sciences Corporation from [2] archive copy at the Wayback Machine.
  • Cat's Eye Nebula image credit: NASA, ESA, HEIC, and The Hubble Heritage Team (STScI/AURA) from [3].

See also edit

1e15m lengths: one light year yellow shell; Comet 1910 A1's orbit; light month shell
Zoomed in to show shorter 1e14m lengths: one light month yellow shell; Hyakutake's orbit; light week shell and smaller.
1e16m lengths: ten light years yellow shell; Sirius; BL Ceti; Proxima and Alpha Centauri; light year shell with Comet 1910 A1's orbit inside
objects with size order of magnitude 1e16m: ten light year radius circle with yellow Vernal Point arrow; Bubble Nebula (NGC 7635), left; Dumbbell Nebula (NGC 6853), right; one light year shell lower right with the smaller Cat's Eye Nebula (NGC_6543) and Barnard 68 adjacent.
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Date/TimeThumbnailDimensionsUserComment
current22:23, 10 December 2008Thumbnail for version as of 22:23, 10 December 20081,280 × 1,024 (865 KB)84user (talk | contribs)add Stingray Nebula
23:02, 9 December 2008Thumbnail for version as of 23:02, 9 December 20081,024 × 768 (562 KB)84user (talk | contribs){{Information |Description={{en|1=Comparison of sizes of objects with order of magnitude 1e15m: one light year radius circle with yellow Vernal Point arrow; Cat's Eye Nebula (NGC_6543) on left with Bok Globule Barnard 68 adjacent; Great January comet (Com

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