new `spot` function changes Y00 coefficient

rodluger / starry

Tools for mapping stars and planets.

https://starry.readthedocs.io

MIT License

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Closed rodluger closed 3 years ago

rodluger commented 3 years ago

Describe the bug The new spot function changes the value of the Y_{0,0} coefficient. (Found by @fbartolic -- thanks!)

To Reproduce

map = starry.Map(20)
map.spot(contrast=-10, lon=190, lat=15)
print(map._y[0])

Expected behavior The Y_{0,0} coefficient should be fixed at unity; the normalization should be absorbed into map.amp.

rodluger commented 3 years ago