File:Astro 4D m45 cr anim.gif
Original file (466 × 601 pixels, file size: 561 KB, MIME type: image/gif, looped, 139 frames, 6.9 s)
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This file is a stereogram. Stereograms are stereoscopic images or animations which combine left and right frames showing slightly different visual angles to allow for 3D perception.
The stereogram uses the side-by-side cross-view method. The left frame shows the right eye's perspective, and the right frame the left eye's perspective. It might be possible to view this image without a viewing device by crossing your eyes to visually combine the frames. |
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Summary
| Description |
English: Pleiades - the movement of stars in -/+ 200 000 years.
To view this picture you need cross-eyed viewing.
Slovenčina: Pohyb M45 za 400 000 rokov (-200 000 až 200 000 rokov).
Do tejto hviezdokopy patria hviezdy, ktoré vidíme približne v rovnakej vzdialenosti a smerujú do spoločného bodu na oblohe. Ich zdanlivý smer pohybu na oblohe je vo veľkej miere ovplyvnený blízkosťou antapexu, kde sa hviezdy akoby strácali v diaľach. Pozn.: hĺbka 3D priestoru je modifikovaná logaritmicky, t.j. hviezdy, ktoré sa nám javia na dvojnásobnú vzdialenosť, sú v skutočnosti vzdialené až 10-násobne. Na prezeranie animácie treba zvládnuť tzv. škuľavé pozeranie. |
| Date | |
| Source | Own work |
| Author | Alexander Meleg |
Animácia bola vytvorená vlastným programom podľa údajov z katalógov: The Hipparcos and Tycho Catalogues (ESA 1997) http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=I/239 rozšírený o radiálny pohyb z katalógu III/254 - 2nd Cat. of Radial Velocities with Astrometric Data (Kharchenko+, 2007) ftp://cdsarc.u-strasbg.fr/pub/cats/III/254/
Licensing
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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. |
- You are free:
- to share – to copy, distribute and transmit the work
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- 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.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 07:18, 29 April 2010 | | 466 × 601 (561 KB) | wikimediacommons>Alexander Meleg | {{Information |Description={{en|1=Pleiades - the movement of stars in -/+ 200 000 years. To view this picture you need cross-eyed viewing.}} {{sk|1=Pohyb M45 za 400 000 rokov (-200 000 až 200 000 rokov). Do tejto hviezdokopy patria hviezdy, ktoré vidím |
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