Add solar radii as a unit

macrovision.js

@@ -37,6 +37,7 @@ const unitChoices = {
         "humans",
         "stories",
         "miles",
+        "solarradii",
         "AUs",
         "lightyears",
         "parsecs",

presets/objects.js

@@ -6,6 +6,10 @@ math.createUnit("daltons", {
     definition: "1.66e-27 kg",
     prefixes: "long"
 });
+math.createUnit("solarradii", {
+    definition: "695990 km",
+    prefixes: "long"
+});
 
 function makeObject(name, viewInfo) {
     views = {};