diff --git a/README.md b/README.md
index 351d916..944be24 100644
--- a/README.md
+++ b/README.md
@@ -160,3 +160,16 @@ result between the parties) can stand in for a battle or war in this
 game.
 
 
+Sat Apr 13 21:46:16 PDT 2024
+
+For selecting a star and showing some data about it one option is a
+static pane of widgets, like on the side.  Another option is to have a
+tooltip kind of a thing, but not transient as in you should be able to
+select text on it?  click controls?
+A third option is to populate a notebook tab and switch to it?  That
+seems dramatic.
+
+The first and second options are easy to implement, the tooltip needs
+positioning logic.  Let's exercise the notebook...
+
+
diff --git a/ui.py b/ui.py
index 3f6ce98..dc913da 100755
--- a/ui.py
+++ b/ui.py
@@ -24,6 +24,8 @@ from tkinter.ttk import Notebook
 import data, stars
 
 
+DARK_GRAY = '#222'
+
 class App:
     '''
     A canvas with scrolling support.
@@ -33,6 +35,8 @@ class App:
         notebook = self.notebook = Notebook(master)
         notebook.enable_traversal()
 
+        # Star Map
+
         frame = self.frame = Frame(None, background='green')
         # When putting a frame into a Notebook you use the add() method.
         # but what should the parent of the frame be?  The Notebook?
@@ -67,12 +71,34 @@ class App:
 
         canvas.bind("<Configure>", self.handle_canvas_resize)
 
+        # Star System
+
+        star_system_frame = self.star_system_frame = Frame(None, bg=DARK_GRAY)
+        star_system_frame.columnconfigure(0, weight=1)
+
+        star_name_label = self.star_name_label = Label(star_system_frame, text='Star Name', bg='green', fg='white', anchor=W)
+        star_name_label.grid(row=0, column=0, sticky=E+W)
+
+        star_x_label = self.star_x_label = Label(star_system_frame, text='x', bg='green', fg='white', anchor=W)
+        star_x_label.grid(row=1, column=0, sticky=E+W)
+        star_y_label = self.star_y_label = Label(star_system_frame, text='y', bg='green', fg='white', anchor=W)
+        star_y_label.grid(row=2, column=0, sticky=E+W)
+
+        # Notebook Tabs
+
         notebook.add(frame, text='Star Map', underline=5)
+        notebook.add(star_system_frame, text='Star System', underline=6)
+        self.star_system_tab_id = notebook.tabs()[-1]
         notebook.pack(expand=True, fill=BOTH)
 
     def handle_canvas_resize(self, event):
         print(event)
 
+    def update_star_system_tab(self, star_id, x, y):
+        self.star_name_label['text'] = str(star_id)
+        self.star_x_label['text'] = f'x: {x}'
+        self.star_y_label['text'] = f'y: {y}'
+        self.notebook.select(self.star_system_tab_id)
 
 data.open_db()
 
@@ -89,7 +115,13 @@ for x, y, radius in stars.iter_stars(data.conn):
         activeoutline='orange',
         activewidth=3,
         )
-    app.canvas.tag_bind(star_id, '<Enter>', (lambda event, x=x, y=y: root.title(f'{x}, {y}')))
+    app.canvas.tag_bind(
+        star_id,
+        '<ButtonRelease-1>',
+        (lambda event, star_id=star_id, x=x, y=y:
+         app.update_star_system_tab(star_id, x, y)
+         )
+        )
 
 ##app.frame.mainloop()
 ##data.close_db()