Timeline for Tropical or sidereal orbital period when calculation Solar System positions?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Oct 8, 2022 at 2:07 | comment | added | PM 2Ring | Those calculations seem... strange. See en.wikipedia.org/wiki/True_anomaly & the related articles about mean & eccentric anomaly. And en.wikipedia.org/wiki/Kepler%27s_equation | |
| Oct 7, 2022 at 20:20 | comment | added | Greg Miller | In reality, the choice is arbitrary. But, D is the count of days of the Gregorian calendar, which is based on the tropical year. | |
| Oct 7, 2022 at 19:22 | comment | added | uhoh | @Peter I always get them mixed up and refer to that table to sort it out. It seems that tropical relates to the observing body's axis, and the question is about the observing body's equatorial coordinates which are defined not completely by the celestial sphere, but in part by the observing body's axis. I can't answer your question but I think this may be the path down which an answer may be found. | |
| Oct 7, 2022 at 17:30 | comment | added | Peter | @uhoh - what are you trying to tell us? | |
| Oct 7, 2022 at 17:29 | history | edited | Peter | CC BY-SA 4.0 |
added 342 characters in body
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| Oct 7, 2022 at 16:07 | comment | added | uhoh | sidereal, synodic, draconitic, anomalistic, tropical... | |
| Oct 7, 2022 at 14:18 | comment | added | Greg Miller | It would probably help to post the equations for those that don't have the book, or at least a reference to page/chapter. | |
| Oct 7, 2022 at 12:53 | history | asked | Peter | CC BY-SA 4.0 |