revise index

Author: jeffjennings

index-coordinates.ipynb

@@ -0,0 +1,22 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "b746fb41",
+   "metadata": {},
+   "source": [
+    "# Preface - Tutorial Series on astropy.coordinates\n",
+    "\n",
+    "This is a set of tutorials on how to use the `astropy.coordinates` package to work with astronomical coordinates.\n",
+    "We will introduce many of the key concepts underlying how to represent and transform astronomical coordinates using `astropy.coordinates`, including how to work with both position and velocity data within the coordinate objects. We will also explore how the `astropy.coordinates` package can be used to cross-match two catalogs that contain overlapping sources that may have been observed at different times.\n"
+   ]
+  }
+ ],
+ "metadata": {
+  "language_info": {
+   "name": "python"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}