diff --git a/generate_examples_star_chart.py b/generate_examples_star_chart.py
index ae78196..5b5d71c 100644
--- a/generate_examples_star_chart.py
+++ b/generate_examples_star_chart.py
@@ -4,7 +4,7 @@
 import star_chart_spherical_projection
 
 if __name__ == '__main__':
-    startYear = -15000
+    start_year = -15000
     endYear = 15000
     increment = 5
     year_since_example = 25 # 2025
@@ -12,14 +12,14 @@ if __name__ == '__main__':
     
     star_chart_spherical_projection.position_over_time(star="Vega",
                                                         added_star=None,
-                                                        start_year_since_2000=startYear,
+                                                        start_year_since_2000=start_year,
                                                         end_year_since_2000=endYear,
                                                         is_precession=True,
                                                         increment=increment,
                                                         save_to_csv=None)
     star_chart_spherical_projection.plot_position(star="Vega",
                                                         added_star=None,
-                                                        start_year_since_2000=startYear,
+                                                        start_year_since_2000=start_year,
                                                         end_year_since_2000=endYear,
                                                         is_precession=True,
                                                         increment=increment,
@@ -28,7 +28,7 @@ if __name__ == '__main__':
                                                         save_plot_name="star_chart_spherical_projection/pytests/examples/plot_star_vega_declination_with_precession.png")
     star_chart_spherical_projection.plot_position(star="Vega",
                                                         added_star=None,
-                                                        start_year_since_2000=startYear,
+                                                        start_year_since_2000=start_year,
                                                         end_year_since_2000=endYear,
                                                         is_precession=True,
                                                         increment=increment,
@@ -37,7 +37,7 @@ if __name__ == '__main__':
                                                         save_plot_name="star_chart_spherical_projection/pytests/examples/plot_star_vega_right_ascension_with_precession.png")
     star_chart_spherical_projection.plot_position(star="Vega",
                                                         added_star=None,
-                                                        start_year_since_2000=startYear,
+                                                        start_year_since_2000=start_year,
                                                         end_year_since_2000=endYear,
                                                         is_precession=False,
                                                         increment=increment,
@@ -46,7 +46,7 @@ if __name__ == '__main__':
                                                         save_plot_name="star_chart_spherical_projection/pytests/examples/plot_star_vega_declination_without_precession.png")
     star_chart_spherical_projection.plot_position(star="Vega",
                                                         added_star=None,
-                                                        start_year_since_2000=startYear,
+                                                        start_year_since_2000=start_year,
                                                         end_year_since_2000=endYear,
                                                         is_precession=False,
                                                         increment=increment,