diff --git a/tools/generate_starchart.py b/tools/generate_starchart.py
index b95443f..52b4cfc 100755
--- a/tools/generate_starchart.py
+++ b/tools/generate_starchart.py
@@ -6,6 +6,20 @@ import csv
 import sys
 import math
 
+#def entry(ra_hour, ra_min, ra_sec, dec_deg, dec_min, dec_sec, mag, name, color_index):
+#    return [
+#        ra_hour*15 + ra_min*0.25 + ra_sec*0.004166,
+#        dec_deg + dec_min/60 + dec_sec/3600,
+#        mag,
+#        name,
+#        color_index,
+#    ]
+#
+#
+#CUSTOM_ENTRIES = [
+#    entry(0, 42, 44.3, 41, 16, 9, 3.44-15, 0.63, "Andromeda Galaxy"),
+#]
+
 # Lower apparent magnitude = brighter.
 # Sun = -26.7
 # Sirius = -1.44
@@ -21,7 +35,8 @@ print("")
 print("pub const STARS: &[[f32; 5]] = &[")
 
 
-def render(ra, dec, mag, proper):
+def render(ra, dec, mag, ci, proper):
+    # Takes ra/deg in degrees
     ra = float(ra)
     dec = float(dec)
     mag = float(mag)
@@ -46,6 +61,7 @@ def render(ra, dec, mag, proper):
 
 total = 0
 count = 0
+count_extra = 0
 with open("hygdata_v41.csv", "r", encoding="utf-8") as f:
     for entry in csv.DictReader(f):
         total += 1
@@ -59,8 +75,11 @@ with open("hygdata_v41.csv", "r", encoding="utf-8") as f:
             continue
         if float(mag) > MAX_APPARENT_MAGNITUDE:
             continue
-        render(ra, dec, mag, proper)
+        render(ra, dec, mag, ci, proper)
         count += 1
+#for entry in CUSTOM_ENTRIES:
+#    render(entry[0], entry[1], entry[2], entry[3], entry[4])
+#    count_extra += 1
 
 print("];")
-print(f"Wrote {count} stars (total={total}).", file=sys.stderr)
+print(f"Wrote {count} stars (total={total}) + {count_extra} extra entries.", file=sys.stderr)