diff --git a/skyfield/planets.py b/skyfield/planets.py
index <HASH>..<HASH> 100644
--- a/skyfield/planets.py
+++ b/skyfield/planets.py
@@ -16,5 +16,5 @@ uranus = ephemeris.uranus
 neptune = ephemeris.neptune
 pluto = ephemeris.pluto
 
-nine_planets = [mercury, venus, earth, mars,
-                jupiter, saturn, uranus, neptune, pluto]
+eight_planets = [mercury, venus, earth, mars, jupiter, saturn, uranus, neptune]
+nine_planets = eight_planets + [pluto]
Add `eight_planets` list beside `nine_planets`

Just in case Mike Brown ever looks at Skyfield.