Category Archives: Double/Multiple Stars

Struve 1678: A Light Yellow Double of Equal Brightness in Coma Berenices

Struve 1678 (STF 1678) is a double star of nearly equal brightness in the constellation Coma Berenices, best viewed on spring nights. The binary stars are wide apart at 37 arc seconds, making it an easier target. This double is also known as SAO 100235 or HIP 62249.

Kappa Boötis (Asellus Tertius): A Double Star of White and Deep Blue in Boötes

Kappa Boötis is an attractive double star in the northern constellation of Boötes. It’s best viewed during the springtime. Observers can view this binary with its white and deep blue companion using a small telescope, even from the suburbs.

Tau Leonis (84 Leo): A Lemon Drop and Baby Blue Double

Tau Leonis († Leo), also known as 84 Leo, is a double star in the northern constellation of Leo. It’s best viewed during the springtime. It is a wide bright pair of stars, and the primary star is a pretty lemon color. A large pair of binoculars and any sized scope should be able to see the binary.

83 Leonis (Struve 1540): A Pretty Amber Binary with Exoplanet in Leo

83 Leonis is a binary star in the northern constellation of Leo. It’s best viewed during the springtime. It is a wide bright pair of stars, and the primary star is a pretty orange color. A large pair of binoculars and any sized scope should be able to see the binary. The secondary has an exoplanet around it. The binary is also known as SEO 118864 and Struve 1540.

Struve 1520: A Double of Yellow and Blue, Yellow—or Maybe Red

Overview of double star Struve 1520, STF 1520, as viewed through an 8-inch SCT scope under suburban skies. This is a double star of gold and red colors in constellation Ursa Major. The pair lie 12.7 arcseconds apart and make for a good double star target with a smaller scope.