Talk:Perturbation (astronomy)

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alterations to an object's orbit caused by gravitational interactions with other bodies

The orbit as such is caused mainly "by gravitational interactions with other bodies". Andres 09:06, 21 September 2007 (UTC)

True enough. I have modified the article following your comment, as such: alterations to an object's orbit caused by gravitational interactions with bodies external to the system formed by the object and it parent body [. . .] CielProfond (talk) 23:40, 24 October 2008 (UTC)

Perturbation Equations[edit]

This article needs to feature the Lagrangian and Gaussian perturbation equations and perhaps some explanation of how they're applied and/or derived. This is essential to understanding the topic beyond a popular level. Ryan Hardy (talk) 06:04, 24 February 2010 (UTC)


Presently "Orbital perturbation" redirects to "Perturbation (astronomy)". But I have added some stuff and plan to add some more that probably applies more directly to spacecraft orbit then to natural astronomical objects. Main difference is that spacecraft have a short orbital period and therefore have a rather constant environment for several successive orbits while the orbital periods of the different planets are of a similar magnitudes and the perturbation analysis for planets should therefore have a somewhat different characteristics.

Anyway, what had been put in the article until now was really thin!

I would like to revive "Orbital perturbation"! Or if astronomers prefer to have two articles, "Orbital perturbation (Astronomy)" and "Orbital perturbations (Spacecraft)". The latter with a lot of information of importance for "Orbit control" and "Mission design"

Opinions!? Stamcose (talk) 22:20, 13 February 2011 (UTC)

- I have solved the problem by starting a new article with the suitable name Orbital perturbation analysis (spacecraft)

- Should "Perturbation (astronomy)" be kept? I do not think there is much content in it! --Stamcose (talk) 16:10, 14 February 2011 (UTC)

I definitely think it should be kept, at least until we see how the spacecraft article evolves. We still need a non-technical explanation, perhaps through examples, about how planetary perturbations occur in the Solar System. -- Kheider (talk) 19:42, 14 February 2011 (UTC)
Sadly Orbital perturbation analysis (spacecraft) now just redirects to Orbital perturbation analysis which has very little to do with spacecraft. - Rod57 (talk) 11:32, 8 April 2017 (UTC)

F.R. Moulton wrote a minimal-math chapter on perturbations in his An Introduction to Celestial Mechanics. I could attempt to condense it for this article, although it relies on heavy use of diagrams, and I don't know how to do that here! I would like to see this article fleshed out a little in the descriptions of general and special perturbations. Tfr000 (talk) 15:59, 10 February 2012 (UTC)

Seems we have no articles for Cowell's Method and Encke's Method. Maybe I'll write them. Tfr000 (talk) 22:00, 5 March 2012 (UTC)

File:Mercury perturbation comparison.png Nominated for speedy Deletion[edit]


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This is Bot placed notification, another user has nominated/tagged the image --CommonsNotificationBot (talk) 18:15, 6 March 2012 (UTC)

Yes, I nominated the image for deletion myself. I have put another version of it in Wikimedia Commons. Tfr000 (talk) 02:52, 7 March 2012 (UTC)