Timeline for How to find the Moon's node longitude crossing
Current License: CC BY-SA 4.0
8 events
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| Mar 29 at 4:56 | comment | added | dimitri33 |
PM 2Ring, I appreciate your comments select_date = swe.julday(2024, 5, 10, 21.55067, swe.GREG_CAL) this is what the swieesph code prints alculation successful! Ascending node: Position: (15.125165845230343,) Descending node: Position: (195.12516584523127,) Velocity: (0.0, 0.0, 0.0) Perihelion: Position: (4.957640578587505,) Velocity: (-0.9184831739624794, 0.002406733121510601, 0.0, 0.0, 0.0) Aphelion: Position: (184.9576405785884,) Velocity: (0.9184831739628908, 0.0027318105529593037, 0.0, 0.0, 0.0)
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| S Mar 29 at 4:23 | history | suggested | creidhne | CC BY-SA 4.0 |
fix code blocks (first line of 2nd block was hidden}; improve formatting; edit for grammar and clarity
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| Mar 29 at 2:39 | review | Suggested edits | |||
| S Mar 29 at 4:23 | |||||
| Mar 29 at 2:26 | comment | added | PM 2Ring | Adjusting for precession 0.3402638°, so OM=14.784736°, gives 2024-May-11 01:00:36 TDB ssd.jpl.nasa.gov/api/… | |
| Mar 29 at 1:25 | comment | added | PM 2Ring | Your Python code appears to be checking the Moon's longitude, not its north node's longitude. | |
| Mar 29 at 1:13 | comment | added | PM 2Ring | Horizons says OM is 15.125° on 2024-Apr-27 23:40 TDB, but that's for the J2000 equinox. If you want to use the "of date" equinox you need to adjust for precession of the equinox, as Mike G mentioned on one of your earlier questions. | |
| Mar 29 at 1:12 | comment | added | PM 2Ring | The motion of the Moon's north node is rather irregular. Using my plotting script I get this graph. | |
| Mar 29 at 0:01 | history | asked | dimitri33 | CC BY-SA 4.0 |
