diff --git a/docs/tutorials/abs_astrometry.ipynb b/docs/tutorials/abs_astrometry.ipynb
index fd8219db..3dc8237e 100644
--- a/docs/tutorials/abs_astrometry.ipynb
+++ b/docs/tutorials/abs_astrometry.ipynb
@@ -83,19 +83,19 @@
     ")\n",
     "\n",
     "raoffs = np.zeros(num_datapoints)\n",
-    "deoffs = np.zeros(num_datapoints)\n",
+    "decoffs = np.zeros(num_datapoints)\n",
     "for i in range(num_datapoints):\n",
     "    my_data_coordinate = SkyCoord(datapoints[i], unit=(u.hourangle, u.deg))\n",
     "\n",
     "    # take difference between reported Hipparcos position and convert to mas\n",
-    "    raoff, deoff = hipparcos_coordinate.spherical_offsets_to(my_data_coordinate)\n",
+    "    raoff, decoff = hipparcos_coordinate.spherical_offsets_to(my_data_coordinate)\n",
     "\n",
     "    # n.b. orbitize! expects raw ra offsets, NOT multiplied by cos(delta0). Don't\n",
     "    # multiply by cos(delta0) here.\n",
     "    raoffs[i] = raoff.to(u.mas).value\n",
-    "    deoffs[i] = deoff.to(u.mas).value\n",
+    "    decoffs[i] = decoff.to(u.mas).value\n",
     "\n",
-    "print(raoffs, deoffs)"
+    "print(raoffs, decoffs)"
    ]
   },
   {
@@ -134,8 +134,8 @@
        "      <th>epoch</th>\n",
        "      <th>object</th>\n",
        "      <th>raoff</th>\n",
-       "      <th>deoff</th>\n",
-       "      <th>deoff_err</th>\n",
+       "      <th>decoff</th>\n",
+       "      <th>decoff_err</th>\n",
        "      <th>raoff_err</th>\n",
        "    </tr>\n",
        "  </thead>\n",
@@ -163,7 +163,7 @@
        "</div>"
       ],
       "text/plain": [
-       "        epoch  object        raoff        deoff  deoff_err  raoff_err\n",
+       "        epoch  object        raoff        decoff  decoff_err  raoff_err\n",
        "0  58894.1644       0   377.813056  1044.819572      123.4      123.4\n",
        "1  58934.8270       0  1425.176093   933.702905      123.4      123.4"
       ]
@@ -183,9 +183,9 @@
     "df_orbitize[\"object\"] = 0\n",
     "\n",
     "df_orbitize[\"raoff\"] = raoffs\n",
-    "df_orbitize[\"deoff\"] = deoffs\n",
+    "df_orbitize[\"decoff\"] = decoffs\n",
     "\n",
-    "df_orbitize[\"deoff_err\"] = 123.4  # error on the declination measurement, in mas\n",
+    "df_orbitize[\"decoff_err\"] = 123.4  # error on the declination measurement, in mas\n",
     "df_orbitize[\"raoff_err\"] = 123.4  # error on the RA measurement, in mas\n",
     "\n",
     "df_orbitize.to_csv(\"data_for_orbit_fit.csv\", index=False)\n",