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-rw-r--r--src/solar.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/solar.py b/src/solar.py
index 028330c..ef74c08 100644
--- a/src/solar.py
+++ b/src/solar.py
@@ -515,7 +515,7 @@ def past_equinox(t = None):
# TODO document
def future_past_solstice(delta, t = None):
- e = 0.0001
+ e = 0.00001
fun = lambda t : (solar_declination(t - e) - solar_declination(t + e)) / 2
return solar_prediction(delta, 0, fun, t = t)