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**Is your feature request related to a problem? Please describe.**
The first date/time field defines the time of the calculation series.
When first opening the astrocal dialog, the current time is f…
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Hi @oorb ,
I've recently tried to build `oorb` on ARM (Apple Silicon) and it failed with the following error:
```
gfortran -c -O2 -fPIC -std=f95 -fall-intrinsics -cpp -flto -pipe -funroll-loops -…
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### Expected Behaviour
Correct prediction of the position of Comet Halley at or near 1986 perihelion.
### Actual Behaviour
Issue #1: The orbital elements for comet 1P/Halley presently used as…
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Hello Ralf.
Here is the code of 2.09.03: https://www.astro.com/ftp/swisseph/
and
https://www.astro.com/ftp/swisseph/src/
There are two new functions to include in the R code:
swe_houses_ex2()…
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I tried to send in an observer with the same latitude and longitude, but with different elevations (between 0 and 15000). But I keep getting the same timestamp for the next sunrise.
Here is my test…
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A bug in fraction_illuminated() on Venus?
It worked well in the skyfield for the moon using fraction_illuminated(). But when I tried to do it on Venus, the results were completely wrong and weird. …
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Hi and thanks for the great library!
When I tested the calculated data in the "node lunar_eclipse" demo, I found that the calculated data has a 1-2 minute timelag from NASA's official lunar eclipse…
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#### Problem description
The function `sun_earth_distance_correction` in pyorbital/astronomy.py returns the square of the sun-earth distance relative to 1 AU. However, the function `apply_earthsun_…
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with the kernels loaded automatically from the synced folder on pub099 the roll angle calculations fails:
```
# load the test kernel
from stixcore.data.test import test_data
_spm = Spi…
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i am trying to calculate the exact degree of planets on the zodiac by pyephem but i faced with some problems. i need to extract the amounts with high accuracy . i made it better by changing Epoch valu…