File:Central meridian.svg
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Size of this PNG preview of this SVG file: 258 × 302 pixels. Other resolutions: 205 × 240 pixels | 410 × 480 pixels | 656 × 768 pixels | 875 × 1,024 pixels | 1,750 × 2,048 pixels.
Original file (SVG file, nominally 258 × 302 pixels, file size: 282 KB)
Captions
Captions
central meridian of a celestial body
Summary
[edit]
| Description |
English: central meridian of a celestial body, showing also a divergent prime meridian |
| Date | |
| Source | Own work |
| Author | DeWikiMan |
|
This SVG file contains embedded text that can be translated into your language, using any capable SVG editor, text editor or the SVG Translate tool. For more information see: About translating SVG files. |
This graph has been created with Geogebra Classic (see geogebra.org), labels added with Inkscape. Geogebra construction protocol:
1 Point NS(0.72, -0.65, 2.5) NS = (0.72, -0.65, 2.5)
2 Point M Intersection point of zAxis, xOyPlane M = (0, 0, 0)
3 Sphere sun Sphere through NS with center M sun: x² + y² + z² = 7.19
4 Point C Intersection point of sun, zAxis C = (0, 0, -2.68)
5 Point D Intersection point of sun, zAxis D = (0, 0, 2.68)
6 Point vp1(-2.68, 0, 0) Intersection point of sun, xAxis vp1 = (-2.68, 0, 0)
7 Point vp2(2.68, 0, 0) Intersection point of sun, xAxis vp2 = (2.68, 0, 0)
8 Circle d Circle through D, vp2, C d: X = (0, 0, 0) + (1.9 cos(t) - 1.9 sin(t), 0, -1.9 cos(t) - 1.9 sin(t))
9 Line r Line M, NS r: X = (0, 0, 0) + λ (0.72, -0.65, 2.5)
10 Plane eqp Plane through M perpendicular to r eqp: 0.72x - 0.65y + 2.5z = 0
11 Circle eq Intersection curve of eqp, sun eq: X = (0, 0, 0) + (1.79 cos(t) - 1.86 sin(t), 1.99 cos(t) + 1.67 sin(t), 0.98 sin(t))
12 Point S NS mirrored at Plane(eq) S = (-0.72, 0.65, -2.5)
13 Circle c Circle through NS, vp2, S c: X = (0, 0, 0) + (1.62 cos(t) - 2.14 sin(t), 0.54 cos(t) + 0.41 sin(t), -2.07 cos(t) - 1.57 sin(t))
14 Point A Intersection point of c, eq A = (2.58, 0.18, -0.7)
15 Point B Intersection point of c, eq B = (-2.58, -0.18, 0.7)
16 Vector ra Vector(-1.5NS, 1.5NS) ra = (2.17, -1.96, 7.49)
17 Point MP Point on eq MP = (2.34, 1.26, -0.35)
18 Arc zm CircumcircularArc(NS, MP, S) zm = 8.42
19 Line T21 Tangent to d through vp2 T21: X = (2.68, 0, 0) + λ (0, 0, -2.68)
20 Text text1 "N_S"
21 Point NE(0, 0.2, 3.8) NE = (0, 0.2, 3.8)
22 Text text2 "N_E"Licensing
[edit]
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 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.
- 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
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:38, 1 June 2020 | | 258 × 302 (282 KB) | DeWikiMan (talk | contribs) | File uploaded using svgtranslate tool (https://svgtranslate.toolforge.org/). Added translation for de. |
| 09:31, 1 June 2020 |  | 258 × 302 (283 KB) | DeWikiMan (talk | contribs) | angles added | |
| 08:04, 1 June 2020 |  | 258 × 302 (282 KB) | DeWikiMan (talk | contribs) | File uploaded using svgtranslate tool (https://svgtranslate.toolforge.org/). Added translation for de. | |
| 07:53, 1 June 2020 |  | 258 × 302 (278 KB) | DeWikiMan (talk | contribs) | Uploaded own work with UploadWizard |
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- Usage on de.wikipedia.org
