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-rw-r--r--info/blueshift.texinfo2
1 files changed, 1 insertions, 1 deletions
diff --git a/info/blueshift.texinfo b/info/blueshift.texinfo
index f4d2aeb..d584601 100644
--- a/info/blueshift.texinfo
+++ b/info/blueshift.texinfo
@@ -212,7 +212,7 @@ look better.
Changes the colour tempurature to @code{TEMP}
Kelvin. The standard colour tempurature is
6500 K@footnote{Or actually 6504 K using revised
-constants in Plank's law}. If not specified,
+constants in Planck's law}. If not specified,
the colour temperature will be 3700 K during
high night and 6500 K during the high day.