Create a Finder Chart

Finder Chart Position (J2000):

RA:
Dec:

OR

NGC: or Struve: or Variable: (e.g SS Gem)

Finder Chart Parameters:

Chart size, in degrees (1 - 6):
Chart size, in pixels:
Show only variables with maxima brighter than th magnitude
Show an eyepiece field of arc minutes
Light stars on a dark sky
Black stars on a white sky

Umm... Could you please explain the above?