Planetary Alignment (nothing to do with astrology)

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Discussion Overview

The discussion centers on the possibility of all planets in the solar system aligning, exploring whether such an event has occurred or could occur in the future. Participants express curiosity about the realism of planetary alignments without attributing any consequences to such occurrences.

Discussion Character

  • Exploratory, Conceptual clarification

Main Points Raised

  • One participant questions the feasibility of perfect planetary alignment, suggesting that precision needs to be defined due to the imperfections in real-life celestial mechanics.
  • Another participant notes that there have been notable alignments in the past, referencing an alignment that occurred 20 or 30 years ago that facilitated outer planet exploration.
  • Several participants suggest using planetarium programs or solar system simulators to visualize potential alignments, with specific recommendations for software like Stellarium and Celestia.

Areas of Agreement / Disagreement

Participants generally agree on the interest in the topic and the utility of simulation software, but there is no consensus on the specifics of alignment precision or the likelihood of a perfect alignment occurring.

Contextual Notes

The discussion does not resolve the uncertainties regarding the definitions of alignment and the conditions under which it might be considered "perfect."

Who May Find This Useful

Individuals interested in astronomy, planetary science, or simulation software for celestial mechanics may find this discussion relevant.

dmt740
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*THIS IS AN ACTUAL QUESTION, NOT A WHAT IF SCENARIO*

I just wondered if it has ever happened or could ever happen that all of the planets align? I'm not saying there are any consequences thereof, just want to know if it's realistically possible, why/why not. Basically just because I think it would be cool.

Thanks!
 
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Since there is no such thing as perfection in real life, you'd have to specify what precision you are looking for. There have been many good alignments, including a notable one 20 or 30 years ago that helped facilitate exploration of the outer planets.

One thing you might try is to get ahold of a planetarium program or solar system simulator and run it forwards or backwards in time to see what kind of alignments you get.
 
russ_watters said:
One thing you might try is to get ahold of a planetarium program or solar system simulator and run it forwards or backwards in time to see what kind of alignments you get.

Interesting idea. Do you know of any commercially(i.e. free) that are available?
 
dmt740 said:
Interesting idea. Do you know of any commercially(i.e. free) that are available?

Stellarium would do.
 

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