Update app.py

app.py

@@ -67,8 +67,10 @@ if uploaded_file is not None:
         data = hdul[0].data
         wcs = WCS(hdul[0].header)
 
+        max_scale = data // 128
         # Add a slider to change the scale
-        scale = st.slider("Scale", 1, 4, 1, 1)
+        with col1:
+            scale = st.slider("Scale", 1, max_scale, 1, 1)
 
         plot_image(np.log10(data+1), scale)