1. Get the room as dark as you can get it. That makes a difference!

2. You can cover the sides of the cups with something to darken the glow the cup will give off. Wrap the cups with masking tape, electrical tape, or aluminum foil.

3. An easy way to dark the cups is to cut out the bottom of a cup to use as a sheath for your constellation cups.

Now you can use this bottomless cup as a sheath over any of your constellation cups. This will reduce the ambient glow from the cup.

Another thing you can do that makes a difference is to paint the bottoms of your consellation cups black before puncturing the star holes. This too helps a lot. Less ambient light will project onto the wall.

Are you interested in learning more about the night sky?

Check out my book!

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My book is available on Amazon.com prime-

Writing this book has been a wonderful experience for me. I truly love telescopes and astronomy. Well.... you probably could have figured that out seeing as I have a website all about these things! But this book is quite wonderful and I am very proud of it. If you have a small telescope or are thinking about getting one then check it out. In it I have chapters on using a small telescopes, stars, planets, how to take pictures with your telescope and of course a list with star charts of 101 objects to you can observe. Learn more and order it here.