BoundaryLineStyle (2) 

The boundary line style can be changed:

In[5]:=

Out[5]=

The boundary line can also be turned off:

In[6]:=

Out[6]=

GridStyle (2) 

The style of the equatorial coordinate grid can be changed:

In[7]:=

Out[7]=

The equatorial coordinate grid can also be turned off:

In[8]:=

Out[8]=

HighlightedRegionStyle (2) 

The style of the highlighted region can be changed:

In[9]:=

Out[9]=

The highlighted region can also be turned off:

In[10]:=

Out[10]=

LineArtStyle (2) 

The style of line art can be changed:

In[11]:=

Out[11]=

Line art can also be turned off:

In[12]:=

Out[12]=

MagnitudeLimit (3) 

Fainter stars can be seen by changing the magnitude limit:

In[13]:=

Out[13]=

Constellations like Sagittarius have many faint stars due to being in the direction of the galactic center:

In[14]:=

Out[14]=

Constellations like Coma Berenices have relatively fewer stars due to being observed far from the galactic plane:

In[15]:=

Out[15]=

MagnitudeScalingFunction (1) 

Provide a different scaling function for stars based on apparent magnitude:

In[16]:=

Out[16]=

MaskRegionStyle (2) 

The style of the outer mask region can be changed:

In[17]:=

Out[17]=

The outer mask region can also be removed:

In[18]:=

Out[18]=

PlotRange (1) 

Zooming into a specific area of a constellation region can be done using PlotRange, such as this view of the Pleiades star cluster in Taurus:

In[19]:=

Out[19]=

StarLabels (1) 

Label the eight brightest stars:

In[20]:=

Out[20]=

StarStyle (2) 

The style of the stars can be changed:

In[21]:=

Out[21]=

Stars can also be turned off:

In[22]:=

Out[22]=