Update exoplanet notebooks

[mwcraig]

I may YOLO this since we may use it in class today 😬

[codecov]

Codecov Report

Attention: Patch coverage is 11.53846% with 23 lines in your changes missing coverage. Please review.

Project coverage is 79.88%. Comparing base (b9bf579) to head (972b356).
Report is 12 commits behind head on main.

Files with missing lines	Patch %	Lines
...llarphot/differential_photometry/aij_rel_fluxes.py	11.53%	23 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #480      +/-   ##
==========================================
- Coverage   80.32%   79.88%   -0.45%     
==========================================
  Files          32       32              
  Lines        4067     4092      +25     
==========================================
+ Hits         3267     3269       +2     
- Misses        800      823      +23     

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[mwcraig]

Gonna yolo...