diff --git a/ejercicio1.ipynb b/ejercicio1.ipynb
index af2bdf9a8f6111e1f44a112cc018461375293d2f..7bf4e51a9938fb3f42025600e1b35c4d6b4ac686 100644
--- a/ejercicio1.ipynb
+++ b/ejercicio1.ipynb
@@ -32,8 +32,10 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
-   "metadata": {},
+   "execution_count": 1,
+   "metadata": {
+    "scrolled": true
+   },
    "outputs": [
     {
      "name": "stdout",
@@ -49,14 +51,14 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "data  README.md  Untitled.ipynb\r\n"
+      "data  ejercicio1.ipynb\tejercicio2.ipynb  README.md\r\n"
      ]
     }
    ],
@@ -66,7 +68,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -76,7 +78,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 6,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -101,12 +103,14 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [],
    "source": [
     "estrellas=np.concatenate((data_dwarfs,data_giants,data_ms,data_supergiants),axis=0)\n",
-    "#estrellas"
+    "\n",
+    "# Guardamos este arreglo de numpy para usarlo en el segundo ejercicio\n",
+    "np.save('./data/estrellas.npy', estrellas)"
    ]
   },
   {
@@ -118,7 +122,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 37,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [
     {