Obrázok:Orbital elements.svg
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Orbital_elements.svg (16KB, MIME : image/svg+xml)
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| P2 | Ecliptic plane |
|---|---|
| ♈ | Vernal point |
| S | Primary, e.g. Sun |
| P1 | Orbital plane |
| a | Semi-major axis |
| ☊ | Ascending node |
| Ω | Longitude of the ascending node |
| i | Inclination |
| P | Periapsis |
| ω | Argument of periapsis |
[edit] Summary
| Description |
Schematics showing the orbital elements of an heliocentric orbit. |
|---|---|
| Source |
This is a modified version of Bahnelemente.svg (GFDL) by ArtMechanic. The original version has been "internationalised", no sentences in any language are present. |
| Date |
Modified 3. Mar. 2006. |
| Author | |
| Permission |
Brandir put it under the GFDL |
| Other versions | Image:Bahnelemente.svg |
[edit] Licensing
 |
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".
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[edit] Notes
- The longitude of periapsis is defined as the sum of the longitude of the ascending node and the argument of periapsis. It is a numerically convenient way of expressing the same quantity, but which does not have a direct geometrical meaning.
- The orbital focus S has been set here to the primary's position, which is the way orbits are defined in astronomy. It is also possible to express the orbital mechanics by setting S to the system's centre of mass (a barycentric orbit), in which case the semi-major axis will be smaller by a factor of up to 2.
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