From f062c01e6d6fa96651b2a8a69a0cd2c9503f77ca Mon Sep 17 00:00:00 2001
From: "F. R. Herpich" <fabiorafaelh@gmail.com>
Date: Wed, 21 May 2025 15:06:44 -0300
Subject: [PATCH 1/3] Modify plot_sky function to add labels of the hours to
 the object track

---
 astroplan/plots/sky.py | 38 +++++++++++++++++++++++++++++++++++---
 1 file changed, 35 insertions(+), 3 deletions(-)

diff --git a/astroplan/plots/sky.py b/astroplan/plots/sky.py
index 8c0d3fa3..249a0671 100644
--- a/astroplan/plots/sky.py
+++ b/astroplan/plots/sky.py
@@ -13,7 +13,7 @@
 @u.quantity_input(az_label_offset=u.deg)
 def plot_sky(target, observer, time, ax=None, style_kwargs=None,
              north_to_east_ccw=True, grid=True, az_label_offset=0.0*u.deg,
-             warn_below_horizon=False, style_sheet=None):
+             warn_below_horizon=False, style_sheet=None, hours_value=np.array([])):
     """
     Plots target positions in the sky with respect to the observer's location.
 
@@ -81,6 +81,11 @@ def plot_sky(target, observer, time, ax=None, style_kwargs=None,
         astroplan, print *astroplan.plots.available_style_sheets*. Defaults
         to the light theme.
 
+    hours_value : `numpy.ndarray`
+        Array with the labels of the hours to be plotted. The length of
+        this array must be equal to the length of the time array. If
+        passed, the hours will be plotted on the sky map.
+
     Returns
     -------
     An `~matplotlib.axes.Axes` object (ax) with a map of the sky.
@@ -171,8 +176,35 @@ def plot_sky(target, observer, time, ax=None, style_kwargs=None,
     if north_to_east_ccw is False:
         ax.set_theta_direction(-1)
 
-    # Plot target coordinates.
-    ax.scatter(az_plot, alt_plot, **style_kwargs)
+    # Hours added to map by F. Herpich 2025-05-19
+    if isinstance(hours_value, (list, tuple)):
+        hours_value = np.array(hours_value)
+    if not isinstance(hours_value, np.ndarray):
+        raise TypeError("hours_value must be a numpy array, list or tuple")
+
+    if len(hours_value) != len(time):
+        raise ValueError("hours_value must have the same length as the time array")
+
+    if hours_value.size > 0:
+        hoursvalue = hours_value[altitude <= 91.0]
+        if len(hoursvalue) > 1:
+            hoursname = ["%.1f" % i for i in hoursvalue]
+            for i, txt in enumerate(hoursname):
+                ax.annotate(txt, (az_plot[i].value, alt_plot[i].value),
+                            fontsize=8)
+        elif len(hoursvalue) == 1:
+            hoursname = ["%.1f" % hoursvalue[0]]
+            ax.annotate(hoursname[0], (az_plot[0].value, alt_plot[0].value),
+                        fontsize=8)
+        else:
+            pass
+
+    # Plot target coordinates. Modified by F. Herpich 2025-05-19
+    if 'c' in style_kwargs.keys():
+        colorformap = style_kwargs.pop('c')[altitude <= 91.0]
+        ax.scatter(az_plot, alt_plot, c=colorformap, **style_kwargs)
+    else:
+        ax.scatter(az_plot, alt_plot, **style_kwargs)
 
     # Set radial limits.
     ax.set_rlim(1, 91)

From 2cc058fc2a3f2a36ffcb2e27b578586e2599bd89 Mon Sep 17 00:00:00 2001
From: "F. R. Herpich" <fabiorafaelh@gmail.com>
Date: Wed, 21 May 2025 15:07:35 -0300
Subject: [PATCH 2/3] Update gitignore to not commit python eggs

---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index 4982cbf3..f19ae459 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,6 +4,7 @@
 *.o
 *.so
 __pycache__
+.eggs
 
 # Ignore .c files by default to avoid including generated code. If you want to
 # add a non-generated .c extension, use `git add -f filename.c`.

From f646d2ad3b03467299abda8e32d09137ecc9475a Mon Sep 17 00:00:00 2001
From: "F. R. Herpich" <fabiorafaelh@gmail.com>
Date: Mon, 26 May 2025 15:07:41 -0300
Subject: [PATCH 3/3] Fix bug to prevent raising error when units are not
 defined

---
 astroplan/plots/sky.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/astroplan/plots/sky.py b/astroplan/plots/sky.py
index 249a0671..e647a4bf 100644
--- a/astroplan/plots/sky.py
+++ b/astroplan/plots/sky.py
@@ -190,11 +190,11 @@ def plot_sky(target, observer, time, ax=None, style_kwargs=None,
         if len(hoursvalue) > 1:
             hoursname = ["%.1f" % i for i in hoursvalue]
             for i, txt in enumerate(hoursname):
-                ax.annotate(txt, (az_plot[i].value, alt_plot[i].value),
+                ax.annotate(txt, (az_plot[i], alt_plot[i]),
                             fontsize=8)
         elif len(hoursvalue) == 1:
             hoursname = ["%.1f" % hoursvalue[0]]
-            ax.annotate(hoursname[0], (az_plot[0].value, alt_plot[0].value),
+            ax.annotate(hoursname[0], (az_plot[0], alt_plot[0]),
                         fontsize=8)
         else:
             pass