Epsilon Persei (Struve 471): An Aquamarine Celestial Jewel in Perseus

In the autumn constellation of Perseus, Epsilon Persei shines with a beautiful blue-white hue. Backyard astronomers will appreciate the star’s pretty aquamarine color and the challenge of seeing the dim companion star nearby. This multiple star system, also viewed as double star, is a bright target to view in fall. It also known as Struve 471, STF 471, HD 24760, SAO 56840, HR 1220, Eps Per, HIP 18532, Adid Australis

Struve 274: A White Binary Star in Cetus the Sea Monster

Among Cetus’ notable stars lies the binary star Struve 274, a quaint pair of white stars that are fairly easy to view in any modest backyard scope.

Struve 274’s stars are close in magnitude and color. The primary star shines at magnitude +7.5, while the nearby secondary is slightly dimmer at magnitude +7.6. The stars lie a healthy 13.7 arcseconds apart, making them an easy binary target for amateur astronomers. Also known as STF 274, HD 15695, SAO 110591, HIP 11737.

Nu Ceti (Struve 281): A Delicate Yellow and White Binary Star in Cetus the Sea Monster

Among Cetus’ notable stars lies the binary star system of Nu Ceti also known as v Ceti and Struve 281. Nu Ceti is a magnitude 4.9 yellow star with a close dim companion star only 8 arcseconds away. Backyard astronomers will enjoy the challenge of splitting this tight pair that lies in the late autumn constellation of Cetus. The double star is also known as STF 281, Nu Cet, SAO 110635, HIP 12093, HD 16161, HR 754, v Cet.

Kappa Andromedae: A Double Star with a Companion Exoplanet

Kappa Andromedae resides in the constellation Andromeda, a constellation taking a prominent position high in the sky on late autumn nights. Due to its bright visual magnitude of 4.1, Kappa Andromedae is viewable with the naked eye, even from suburban locations. A gas giant exoplanet orbits the star. Also known as Kap And, SAO 53264, HJ 1898, HIP 116805, HR 8976, HD 222439, 19 Andromedae, k And.

Struve 2486 (HD 179558): A Buttery Binary in Cygnus

The binary system, Struve 2486, was first recorded in 1819 by astronomer Friedrich Georg Wilhelm Struve. It can be easily observed through most modest backyard telescopes. Both stars in this binary system are bright, yellow and have a similar magnitude.. Also known as HD 179558 and SAO 48192 and HR 7293.