diff --git a/generate/template/astronomy.js b/generate/template/astronomy.js
index b4e5c8e3..4912a090 100644
--- a/generate/template/astronomy.js
+++ b/generate/template/astronomy.js
@@ -4180,6 +4180,23 @@ class ConstellationInfo {
 }
 
 
+/**
+ * Determines the constellation that contains the given point in the sky.
+ *
+ * Given J2000 equatorial (EQJ) coordinates of a point in the sky,
+ * determines the constellation that contains that point.
+ *
+ * @param {number} ra
+ *      The right ascension (RA) of a point in the sky, using the J2000 equatorial system.
+ *
+ * @param {number} dec
+ *      The declination (DEC) of a point in the sky, using the J2000 equatorial system.
+ *
+ * @returns {Astronomy.ConstellationInfo}
+ *      An object that contains the 3-letter abbreviation and full name
+ *      of the constellation that contains the given (ra,dec), along with
+ *      the converted B1875 (ra,dec) for that point.
+ */
 Astronomy.Constellation = function(ra, dec) {
     if (dec < -90 || dec > +90) {
         throw 'Invalid declination angle. Must be -90..+90.';
diff --git a/source/js/README.md b/source/js/README.md
index b5898a35..896f6f71 100644
--- a/source/js/README.md
+++ b/source/js/README.md
@@ -1711,6 +1711,27 @@ Target: ECL = ecliptic system, using equator at J2000 epoch.
 | observer | [<code>Observer</code>](#Astronomy.Observer) | The location of the horizontal observer. |
 
 
+* * *
+
+<a name="Astronomy.Constellation"></a>
+
+### Astronomy.Constellation(ra, dec) ⇒ [<code>ConstellationInfo</code>](#Astronomy.ConstellationInfo)
+Determines the constellation that contains the given point in the sky.
+
+Given J2000 equatorial (EQJ) coordinates of a point in the sky,
+determines the constellation that contains that point.
+
+**Kind**: static method of [<code>Astronomy</code>](#Astronomy)  
+**Returns**: [<code>ConstellationInfo</code>](#Astronomy.ConstellationInfo) - An object that contains the 3-letter abbreviation and full name
+     of the constellation that contains the given (ra,dec), along with
+     the converted B1875 (ra,dec) for that point.  
+
+| Param | Type | Description |
+| --- | --- | --- |
+| ra | <code>number</code> | The right ascension (RA) of a point in the sky, using the J2000 equatorial system. |
+| dec | <code>number</code> | The declination (DEC) of a point in the sky, using the J2000 equatorial system. |
+
+
 * * *
 
 <a name="Astronomy.ContinuousFunction"></a>
diff --git a/source/js/astronomy.js b/source/js/astronomy.js
index 90ff94a9..c8ecb9f6 100644
--- a/source/js/astronomy.js
+++ b/source/js/astronomy.js
@@ -5701,6 +5701,23 @@ class ConstellationInfo {
 }
 
 
+/**
+ * Determines the constellation that contains the given point in the sky.
+ *
+ * Given J2000 equatorial (EQJ) coordinates of a point in the sky,
+ * determines the constellation that contains that point.
+ *
+ * @param {number} ra
+ *      The right ascension (RA) of a point in the sky, using the J2000 equatorial system.
+ *
+ * @param {number} dec
+ *      The declination (DEC) of a point in the sky, using the J2000 equatorial system.
+ *
+ * @returns {Astronomy.ConstellationInfo}
+ *      An object that contains the 3-letter abbreviation and full name
+ *      of the constellation that contains the given (ra,dec), along with
+ *      the converted B1875 (ra,dec) for that point.
+ */
 Astronomy.Constellation = function(ra, dec) {
     if (dec < -90 || dec > +90) {
         throw 'Invalid declination angle. Must be -90..+90.';