Different ways to calculate the longitude
See original GitHub issueI am not sure if this is a bug or a misundersting from my side (probably the last_
I am trying to calculate the longitude of a planet and I get different results in if I do
osculating_elements_of((planet - sun).at(t).true_longitude
or (planet - sun).at(t).ecliptic_latlon()[1]
I thought it might be a problem with the equinox, so I calculated the difference between the longitude for two planets and still both methods do not match.
Any ideas?
Issue Analytics
- State:
- Created 4 years ago
- Comments:10 (6 by maintainers)
Top Results From Across the Web
3 Ways to Determine Latitude and Longitude
1. Understand latitude. Latitude measures how far a point is north or south of the equator. Since the earth is round, distance from...
Read more >Calculating Longitude
Calculating longitude by comparing time difference. If we have two accurate clocks, one calibrated to GMT and the other calibrated to local time,...
Read more >Latitude and Longitude Distance Calculation Explained
One of the most common ways to calculate distances using latitude and longitude is the haversine formula, which is used to measure distances...
Read more >How to determine your coordinates (latitude and longitude) ...
The longitude value can be calculated by using a “1 degree longitude for 4 minutes time difference” formula. Now you know how to...
Read more >How do I calculate longitude from time?
Because one day is 24 hours long one can easily use time to calculate longitude. One hour of time difference corresponds to 15°...
Read more >Top Related Medium Post
No results found
Top Related StackOverflow Question
No results found
Troubleshoot Live Code
Lightrun enables developers to add logs, metrics and snapshots to live code - no restarts or redeploys required.
Start FreeTop Related Reddit Thread
No results found
Top Related Hackernoon Post
No results found
Top Related Tweet
No results found
Top Related Dev.to Post
No results found
Top Related Hashnode Post
No results found
Top GitHub Comments
I appreciate the time you spent answering this. I will try to convert between the two planes to see if I can recover that.
In the meantime I’m going to close this issue since it’s not currently pending any action to be taken in Skyfield’s code. Feel free to continue the discussion here by commenting further, though!