Studying the 2024 April 8 Solar Eclipse with Astropy
Goals
Learn about the 2024 Eclipse.
Model it with Astropy.
Check our work against the USNO.
References
Demo notebook by H. Snyder for the 2017-08-21 Solar Eclipse
used geopy and pyephem
did not use astropy
Adrian Price-Whelan, Visualizing the 2017 eclipse with Astropy, 2017-08-20
US Naval Observatory 2024 April 08 Eclipse information / Calculate local circumstances
Extra Sources
Juna Kollmeier, TED Talk
The most detailed map of galaxies, black holes and stars ever made
Astropy 3.2 (2019-06-10)
Step 1. Get basic info from USNO.
(Ok, this is cheating.)
Step 2. Follow the steps of Adrian Price-Whelan's 2017 notebook.
This will give us animations and the setup for basic stats.
Add geopy so it knows about the Palatine Library.
Choose a range of 1024 equally-spaced times that span the eclipse
17:00 UTC to 21:00 UTC
Step 3. Summary stats
2024-04-08 14:07:37
look up subtended arcs of sun and moon
sun: The sun subtends an angle of approximately 0.52° (31 arc-minutes)
moon: The moon subtends an angle of approximately 0.54° (32 arc-minutes)
90.39218524334261
31.497463254119648 2024-04-08 12:54:39
31.474618929868615 2024-04-08 15:18:56
Results
US Naval Observatory posted times have been converted from UTC to US/Central.
Source: Solar Eclipse Computer - Solar Eclipse of 2024 April 08 - Palatine, IL
value | USNO | calculations in this worksheet |
---|---|---|
First contact time | 12:51:13.9 | 12:54:39 |
Maximum obscuration time | 14:07:14.4 | 14:07:37 |
Maximum obscuration | 92.4% | 90.4% |
Last contact time | 15:21:29.0 | 15:18:56 |