Kappa Herculis - Wikipedia
Kappa Aquilae - Wikipedia
Webb Deep-Sky Society: Double Star of the Month Archive 2021
Webb Deep-Sky Society: Double Star of the Month Archive 2021
Hercules | Star-Splitters | Page 2
Evaluating my double star discoveries - Double Star Observing - Cloudy Nights
Journal of Double Star Observations - JDSO.org
Delta Ophiuchi - Wikipedia
John Nanson | Star-Splitters | Page 19
Sigma Geminorum | Memory Beta, non-canon Star Trek Wiki | Fandom
Hercules | Star-Splitters | Page 2
Scorpius – Cosmic Reflections
カシオペヤ座カッパ星 - Wikiwand
A spectroscopic quadruple as a possible progenitor of sub-Chandrasekhar type Ia supernovae | Nature Astronomy
Kappa Draconis - Wikipedia
ヘルクレス座カッパ星 - Wikipedia
Kappa Coronae Borealis - Wikiwand
Webb Deep-Sky Society: Double Star of the Month Archive 2021
へび座カッパ星 - Wikipedia
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
Observing Double/Multiple Star Systems - Remote Astrophotography Using Slooh.com
Webb Deep-Sky Society: Double Star of the Month Archive 2021
Journal of Double Star Observations - JDSO.org
