In the constellation of Perseus, around 93 light-years away, lies Algol, also known as the "Demon Star." It's a binary system where a dimmer star eclipses the brighter one every 2.87 days, causing a noticeable change in brightness, creating a characteristic "blink" that has fascinated observers for centuries. The star is also known as Beta Persei, β Per, 26 Persei, HD 19356, HIP 14576, HR 936, and SAO 38592.
Nu 1 Canis Majoris: A Pretty Binary in Canis Major
Nu1 Canis Majoris (also known as ν1 Canis Majoris) is a fairly bright binary in the constellation Canis Major. The two pretty yellow stars are wide apart enough for backyard observers with modest scopes to see both stars. The double is also known as Nu1 CMa, SHJ 73, SAO 151694, HIP 31560, HR 2423, HD 47138, 6 Canis Majoris, ν1 CMa.
6 (Iota) Trianguli: A Bronze and Blue Binary in the Constellation Triangulum
Triangulum is a distinctive northern constellation best observed in autumn and winter, featuring the Messier 33 galaxy and notable double stars like 6 Trianguli. Discovered by William Hershel, this binary system consists of a primary G5 giant and a fainter F5 dwarf star. It is a quadruple system with spectroscopic binaries.
Meissa (Lambda Orionis): A Luminous Multiple Star in Orion
Marking Orion's head is the bright star, Meissa. But it's more than that. Aim your binoculars or telescope toward Meissa, and you'll find a beautiful grouping of related stars. The star is also known as SAO 112921, HD 36861, Lam Ori, Struve 738, STF 738, HD 36861, λ Ori. The star is part of the Collinder 69 cluster.
HR 1997 (HD 38693): A Wide Binary Star in Taurus
In the winter constellation of Taurus, lies HR 1997, a fairly faint binary that you can see with any moderate backyard telescope. The good news is the pair of stars lie far apart, 75 arcseconds, from each other. The double is also known as SAO 77578, ADS 4392, HR 1997, HD 38693, HIP 27421, BD+20 1105.
Sisters Capture the Essence of the Stars
Learn how Sofia and Fabiola Bardelli combined a love of the night sky with perfumery to create a stellar fragrance line inspired by stars like Betelgeuse and Antares. Explore their story of creativity, hope, and the cosmic connection behind In Astra perfumes.
IC 348: A Stellar Nursery and Fireworks Show in Perseus
IC 348 is a beautiful star cluster wrapped in a veil of milky nebulosity. On autumn and winter nights, turn your attention to the Perseus constellation and this cosmic cradle where stars are born. It's also known as C 0341+321, Collinder 41.
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
The Garden Astronomer 