Questions tagged [skyfield]
The skyfield tag has no usage guidance.
11
questions
4
votes
2answers
184 views
Discrepancy between my results of Great Conjunction 2020 and Wikipedia
Using python-skyfield to calculate the upcoming conjunction of Jupiter and Saturn. I'm off a few minutes with the times on Wikipedia.
Wikipedia Great conjunction times (1800 to 2100)
Using Right ...
3
votes
1answer
94 views
How to find the local azimuth of the highest point of the ecliptic
I would like to use pyephem or skyfield1 to find the degree of the local horizon (starting from South = 0°) at which is located the highest point of the ecliptic.
Note that I am not trying to find the ...
3
votes
1answer
55 views
Skyfield missing some rise and set dates
To compute the Andromeda Galaxy Risings and Settings I essentially use this code (in a more colplex code, but this serves the purpose):
...
2
votes
1answer
175 views
How can I calculate the right ascension of an observer on Earth's surface in the TEME frame with python.skyfield?
I would like to calculate the right ascension of a point on earth as specified above with the Skyfield Python library, and I can not figure out how to do this.
I know that calculating the geocentric ...
2
votes
1answer
68 views
2
votes
1answer
48 views
predicting angular seperation between planetary objects and earth satellites
I am struggling to calculate the angular separation between a satellite in earth orbit and a planetary object using the Skyfield library. It's equivalent to calculating the angular separation between ...
2
votes
0answers
131 views
Make a guide map to comet comet Leonard C/2021 A1 using Skyfield
Sky and Telescope's How Bright will Comet Leonard Get? includes the skymap and projected (possible) light curve for comet Leonard C/2021 A1 that will potentially reach +4 magnitude this month. It has ...
1
vote
3answers
195 views
Calculating the position of stars at a given point in time
Is there any particular methods that help us calculate the position of a star at a certain point in time? This question is what I am trying to achieve, but for me, I do not want to use the data ...
1
vote
1answer
84 views
RA expressed in degrees
Using the Python package Skyfield I thought that I could get the RA expressed in degrees simply by doing ra.degrees, but I get the following message
this angle is usually expressed in hours, not ...
1
vote
1answer
111 views
Can I calculate the apparent position of comet NEOWISE C/2020 F3 from a topographic position with Skyfield?
I'd like to get .altaz(next_several_weeks) of this comet from Skyfield and .separation_from() other planets.
It reads the JPL ...
1
vote
1answer
41 views
How to compute rising / setting times for stars and deep sky objects with Skyfield?
I'm trying to compute rising and settings times for various objects with the Skyfield library. While the task is quite easy and well documented for planets (using the ...