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This is my variant of the color scheme:

Clusters - RGB 0,100,50
Galaxies - RGB 100,0,25
Nebulas, Milky Way - RGB 0, 50 100
Constellation borders, names - RGB 60,90,60
Coordinat Grid - 40% black, or RGB 60,60,60
Stars, star labels - 100% Black
Variable stars, doubles labels and markers - RGB 100,50,0

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In my opinion, using any shade of red or orange for something that you want to be visible at night on a star chart is asking for trouble. That's especially true for labels. Even if it looks OK to you by red flashlight, it may not to somebody else. Remember that different printers print colors differently!

At Sky & Telescope, we use a red ellipse with a black outline for galaxies. By red flashlight, the red interior disappears completely -- which is fine, because the black outline still shows well.

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Tony Flanders

eyeglasses
6x15 and 8x32 monoculars
8x25, 7x35, 10x30 IS, 10x50, and 15x70 binoculars
70mm and 100mm achromatic refractors
4.5", 7", and 12.5" Dobs

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