Seeing double (and triple) in the spring sky – Astronomy Now
The sky of May 2021 - planets, stars and main astronomical events | Astrotourism.com
Double and Multiple Star Measurements in the Northern Sky with a 10” Newtonian and a Fast CCD Camera in 2006 through 2009
NCKAS -Double Stars
Boötes Constellation - Herdsman in the Sky | Astronomer's Guide
Boötes Constellation - Herdsman in the Sky | Astronomer's Guide
κ2 Boötis (kappa2 Boötis) - Star in Boötes | TheSkyLive.com
Asellus Tertius (κ Boötis) | Facts, Formation, Distance, Size & Mass
The multiple alpha Geminorum, "Castor" (32 x 33 msec). The inset shows... | Download Scientific Diagram
Asellus Tertius (κ Boötis) | Facts, Formation, Distance, Size & Mass
The three Asellus Stars in Bootes ( Michael Kraus ) - AstroBin
Webb Deep-Sky Society: Double Star of the Month in Bootes
Bootes | Star-Splitters
Kappa Bootis star hop
Springtime Double Stars in Boӧtes | SkyNews
Astronomical League Double Star Observing Log
Seeing double (and triple) in the spring sky – Astronomy Now
Kappa Boötis (Struve 1821) - Belt of Venus
Kappa Boötis - Wikipedia
Bootes | Star-Splitters
Kappa Bootis
Webb Deep-Sky Society: Double Star of the Month in Bootes
