Struve 2742 is a binary star in Equuleus, first noted in the 19th century. Best viewed in late summer and autumn, it features two stars 3 arcseconds apart, requiring at least a 6-inch telescope for a clear view. With magnitudes of +7.4 and +7.6, it’s a rewarding target for amateur astronomers. Article includes a drawing of the binary also known as SAO 126482, HD 200256, HIP 103813, 2 Equulei, Lam Equ, λ Equ
Category Archives: Double/Multiple Stars
Epsilon Equulei (Struve 2737): A Quaint Star System of Yellow and Violet in Equuleus
The delicate and pretty magnitude 5 triple star Epsilon Equulei shines down from the constellation Equuleus on late summer and autumn nights. Learn more about this pretty star and see what it looks like through a backyard telescope.
Struve 2679: A Quaint Triangle Star System in Delphinus
The constellation Delphinus boasts a variety of nice celestial objects, including Struve 2679, a multiple-star system that is visible during late summer and early autumn nights. It makes a small triangle.
Struve 2690 (15 Delphini): A Quaint Multiple Star System in the Dolphin’s Tail
15 Delphini, also known as Struve 2690, is a multiple-star system that is visible during late summer and autumn nights. Most observers will see a quaint pair of equally bright stars in the tail of the constellation Delphinus, but more star lurk nearby!
61 Cygni: The Flying Star
61 Cygni is a bright double star in the constellation Cygnus. It’s best viewed in summer and early autumn. This double star is undoubtably intriguing as it lies a mere 11 light years away.
Struve 2841: An Attractive Yellow and Greenish Double Star in Pegasus
Nestled in the sprawling early autumn constellation of Pegasus is the pretty double star Struve 2841, also known as STF 2841 or HD 208202
Iota Boötes (Asellus Secundus): A Wide Yellow and Lilac Double Star
The double star Iota Boötis shines down from the northern constellation of Boötes. The two stars are separated by approximately 39 arc seconds of space, making the pair visible to those with smaller telescopes—and maybe even binoculars.
Struve 2276: A Nice Double Star in Ophiuchus’ Rich Field of Stars
Struve 2276 (STF 2276) is a captivating double star in Ophiuchus, with magnitudes 7.0 and 7.4. First cataloged by Herschel in 1782, it offers a viewing challenge with a separation of 7 arcseconds. Its relationship as a binary or optical double remains unclear, but its visual beauty stands out in the summer sky. Also known as SAO 103373, HIP 88627, HR 6758, HD 165474