Evaluating my double star discoveries - Double Star Observing - Cloudy Nights
Observing Double/Multiple Star Systems - Remote Astrophotography Using Slooh.com
Star-Hopping in the Northern Marches of Corona Borealis, Part Two: Kappa (κ) and Σ 1983; Zeta (ζ) and Σ 1964 ; and Lambda (λ) | Star-Splitters
Webb Deep-Sky Society: Double Star of the Month Archive 2021
Beta Herculis - Wikipedia
Hercules | Star-Splitters | Page 2
Journal of Double Star Observations - JDSO.org
Demeter & Persephone: Spring Held Hostage [A - Lerner Publishing Group
Hercules | Star-Splitters
Hercules | Star-Splitters | Page 2
Kappa Draconis - Wikipedia
Sigma Coronae Borealis | Memory Beta, non-canon Star Trek Wiki | Fandom
Kappa Coronae Borealis - Wikiwand
Sigma Geminorum | Memory Beta, non-canon Star Trek Wiki | Fandom
4. Choose a Constellation: | Star-Splitters | Page 7
Kappa Aquilae - Wikipedia
ヘルクレス座カッパ星 - Wikipedia
Journal of Double Star Observations - JDSO.org
HNSKY help file
Double and Multiple Stars
![Index to Astronomy Magazine's "ATLAS of the ... - Calgary Centre](https://img.yumpu.com/36994606/1/500x640/index-to-astronomy-magazines-quotatlas-of-the-calgary-centre.jpg "Index to Astronomy Magazine's "ATLAS of the ... - Calgary Centre")
Index to Astronomy Magazine's "ATLAS of the ... - Calgary Centre
Kappa Lyrae - Wikiwand
