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I think `oce::moonAngle()` and `oce::sunAngle()` are returning correct values, since they accurately predict eclipses, etc. But a quick test suggests that `ephemeris::ephemeris()` is producing differ…
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Hi,
First thanks for your work, your library is really amazing.
But for a specific application, i try to generate astrometric table and graph in alt/az for earth observers. I know the dates in a…
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Hello,
I am inquiring about how the data that the 3DM-GQ7 generates is processed by the ROS driver. It seems that the data is processed/received in ROS in bursts. I wanted to confirm if this is int…
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Hi there,
I find that `_prep_inputs_solar_pos` method has been both called in [`prepare_inputs`](https://pvlib-python.readthedocs.io/en/stable/_modules/pvlib/modelchain.html#ModelChain.prepare_inpu…
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For a local processing pipeline, we are planning to setup a local instance of WebGeoCalc at Observatoire de Paris. Although that instance would probably not be accessible from the outer internet, we w…
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By location, I mean, have a sun position indicator cross noon when the sun is crossing the meridian for current longitude, midnight when it is crossing the opposite meridian. The location on the dial …
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I am trying to track down what I think may be a bug in SOFA regarding polar motion. In their function Pvtob(), they do the standard rotation of the Earth by xp around the y axis and then yp around the…
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Related to #450, if I create a `Time` directly using the `tt` argument of it's `__init__` I can cause a very similar ` error.
```python
# testsfbug.py
import numpy as np
from skyfield import api, …
jrs65 updated
4 years ago
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Hi,
first: many thanks for making such nice open-source tools (both Rebound + ReboundX),
I am not an astronomer, but user of a different package ([HNBody](https://www.astro.umd.edu/~rauch/HNBody/…
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The Badíʿ calendar is a solar calendar where each year starts with the vernal equinox. It was developed and defined by the founders of the Bahá'í Faith in the mid to late 1800's A.D. The formal name…