Astronomical League Double Star Observing Log
κ2 Boötis (kappa2 Boötis) - Star in Boötes | TheSkyLive.com
Observing the sky at 30°S
Double and Multiple Star Measurements in the Northern Sky with a 10” Newtonian and a Fast CCD Camera in 2006 through 2009
Springtime Double Stars in Boӧtes | SkyNews
Bootes | Star-Splitters
Asellus Tertius (κ Boötis) | Facts, Formation, Distance, Size & Mass
A Selection of Double Stars in Boötes
DOUBLE YOUR PLEASURE" Rich's Double Star Sketches - Page 102 - Double Star Observing - Cloudy Nights
Webb Deep-Sky Society: Double Star of the Month in Bootes
Webb Deep-Sky Society: Double Star of the Month in Bootes
Kappa Boötis - Wikipedia
Kappa Boötis (Struve 1821) - Belt of Venus
Webb Deep-Sky Society: Double Star of the Month in Bootes
Kappa Bootis star hop
Bootes | Star-Splitters
Boötes Constellation - Herdsman in the Sky | Astronomer's Guide
Boötes Constellation - Herdsman in the Sky | Astronomer's Guide
The sky of May 2021 - planets, stars and main astronomical events | Astrotourism.com
Some Bright-Sky Observing - Double Star Observing - Cloudy Nights
Webb Deep-Sky Society: Double Star of the Month in Bootes
Kappa Bootis
NCKAS -Double Stars
Springtime Double Stars in Boӧtes | SkyNews
Seeing double (and triple) in the spring sky – Astronomy Now
