Added the gallery

examples/scenes/solar-eclipse.toml

@@ -10,6 +10,11 @@
 
 epoch = "2026-08-12T17:46:00 UTC"
 
+# Three times the example camera's exposure, for the dim penumbra around the umbra,
+# with Greenland's ice still short of saturation.
+[camera]
+exposure = 3e-4
+
 [observer]
 position = [-16371789.99, -6703593.18, 38273087.50]
 look_at = [-2469723.91, -1011253.16, 5773587.33]