Now for something completely different. Here is a list of double stars whose components show a large amount of contrast in “COLOR”. This list was compiled from a number of sources. The “COLOR - KEY” was adapted from Webb Society Deep-Sky Observer’s Handbook: Volume I Double Stars by Kenneth Glyn Jones. Since the color of stars, as seen through the eyepiece can be very subjective, the “COLOR - KEY” will only serve as a guide. You may not agree with the exact hues in the key, but I think you’ll agree these are some real beauties.
| COLOR - KEY | |
|---|---|
| Strong Purple Blue | 1 |
| Moderate Blue | 2 |
| Strong Green Blue | 3 |
| Light Blue Green | 4 |
| Strong Yellow Green | 5 |
| Vivid Yellow | 6 |
| Strong Yellow Orange | 7 |
| Strong Orange | 8 |
| Strong Red | 9 |
| Common Name / Constellation | A | B | R. A. | Dec. | Sep. (arcsec) | PA |
|---|---|---|---|---|---|---|
| Gamma Andromeda | 7 | 1 | 02 03 53.9 | +42 19 47 | 9.8 | 64 |
| Iota Bootes | 2 | 8 | 14 16 09.8 | +51 22 02 | 38.5 | 33 |
| 35 Cassiopeia | 2 | 9 | 01 21 05.2 | +64 39 29 | 55.5 | 344 |
| Delta Corvus | 3 | 8 | 12 29 51.9 | -16 30 54 | 24.1 | 214 |
| Beta Cygnus | 8 | 1 | 19 30 43.3 | +27 57 35 | 35 | 53 |
| STT 191 Cancer | 8 | 3 | 08 24 49.2 | +20 09 11 | 37.5 | 191 |
| STF 2348 Draco | 7 | 2 | 18 33 56.7 | +52 21 12 | 24.9 | 273 |
| 32 Eridanus | 8 | 1 | 03 54 17.5 | -02 57 17 | 6.6 | 348 |
| 55 Eridanus | 8 | 3 | 04 43 34.7 | -08 47 39 | 9.7 | 137 |
| 95 Hercules | 7 | 2 | 18 01 30.4 | +21 35 44 | 6.4 | 256 |
| Alpha Leo | 2 | 8 | 10 08 22.4 | +11 58 02 | 177 | 128 |
| Eta Perseus | 8 | 2 | 02 50 41.8 | +55 53 44 | 29 | 123 |
| Lambda Aries | 2 | 5 | 01 57 55.8 | +23 35 46 | 37.1 | 48 |
| Pi Bootes | 2 | 5 | 14 40 43.5 | +16 25 06 | 5.5 | 110 |
| Iota Cancer | 6 | 3 | 08 46 41.8 | +28 45 36 | 30.2 | 308 |
| STF 3053 Cassiopeia | 7 | 2 | 00 02 36.1 | +66 05 56 | 15 | 70 |
| Kappa Cepheus | 2 | 5 | 20 08 53.3 | +77 42 41 | 7.2 | 120 |
| Delta Cepheus | 7 | 3 | 22 29 10.2 | +58 24 55 | 39 | 191 |
| STF 2893 Cepheus | 7 | 3 | 22 12 52.7 | +73 18 26 | 28 | 347 |
| STF 2903 Cepheus | 7 | 3 | 22 21 45.2 | +66 42 22 | 4.4 | 96 |
| 24 Coma Berenices | 7 | 4 | 12 35 07.7 | +18 22 37 | 19 | 269 |
| STF 1678 Coma Berenices | 2 | 5 | 12 45 26.2 | +14 22 25 | 36 | 173 |
| *Omicron Draco (both reddish) | 8 | 9 | 18 51 12.0 | +59 23 18 | 36 | 319 |