diff --git a/orbital-mechanics/.DS_Store b/orbital-mechanics/.DS_Store
index 379d7a0..197d72a 100644
Binary files a/orbital-mechanics/.DS_Store and b/orbital-mechanics/.DS_Store differ
diff --git a/orbital-mechanics/Lecture5/Lecture5.ipynb b/orbital-mechanics/Lecture5/Lecture5.ipynb
index 783f058..9e4b576 100644
--- a/orbital-mechanics/Lecture5/Lecture5.ipynb
+++ b/orbital-mechanics/Lecture5/Lecture5.ipynb
@@ -515,7 +515,10 @@
     "Using Figure 7, \n",
     "\n",
     "- $\\Omega$ is the angle between $\\mathbf{\\hat{I}}$ and the line of nodes $\\mathbf{\\hat{n}}$. Recall that the line of nodes connects the ascending and descending nodes, which are the points where the orbital plane intersects the equatorial reference frame. Therefore, the line of nodes lies in both planes and is perpendicular to the normal vectors of both the reference plane and the orbital plane. In other words:\n",
+    "\n",
     "$$\\mathbf{\\hat{n}} = \\mathbf{\\hat{K}} \\times \\mathbf{h}$$\n",
+    "\n",
+    "where\n",
     "- $i$ is the angle between $\\mathbf{h}$ and $\\mathbf{\\hat{K}}$\n",
     "- $\\omega$ is the angle between $\\mathbf{e}$ and $\\mathbf{n}$\n",
     "\n",