The binary star Struve 742, also known as HD 37013, lies near the famous Crab Nebula in the constellation Taurus and lies 220 light years from Earth. The tight pair is best viewed on winter nights with a telescope. Also known as SAO 77313.
Tag Archives: Winter
e Tauri (Struve 452): A Blue Primary with a Dim Companion in Taurus
e Tauri is a double star featuring a bright primary blue star with a dimmer secondary star in the constellation Taurus, the Bull. The magnitude +5 primary star shines blue and is classified as stellar type B3V. The dimmer viewable secondary star, at magnitude +9.8, appears white in color and is classified as a yellow-white F5V star. The two stars are separated by 9.2 arcseconds and lie 139 light years away from Earth. Also known as 30 Tau, SAO 93611, HD 23792, HR 1174, STF 452.
14 Aurigae (Struve 653): A Multiple Star System in Auriga
14 Aurigae, a prominent multi-star system in the Auriga constellation, features a bright primary star of +5 magnitude while the dimmer secondary appears blue. The stars are 286 light years away and separated by 14 arcseconds. As part of the Orion Spur in the Milky Way, 14 Aurigae provides insights into stellar evolution.
Struve 572: A Tight White Binary Star in Taurus
Struve 572 is a nice binary star in the constellation Taurus, the Bull, most prominent during winter evenings in the Northern Hemisphere. The pair were first observed by astronomer Friedrich Georg Wilhelm Struve in 1822. Modest backyard scopes should be able to split the two stars, which are only separated by 4.5 arcseconds. The double is also known as STF 572, SAO 76682, HR 1470, HD 29364.
41 Aurigae (Struve 845): A Lovely Pair with Debatable Color Differences in Auriga
41 Aurigae is a double star in the Auriga constellation, most visible during winter in the Northern Hemisphere. Observers report inconsistent colors for the stars, ranging from ‘blue and pale apricot’ to ‘silvery white and pale violet’. The author’s observations match with Smyth’s, stating the primary star appears silvery white with the secondary star slightly violet, or blue. Despite the contrasting reports, the pair’s brightness, proximity, and color disparity contribute to their appeal.
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.
Messier 44 (NGC 2632): A Swarm of Bees in Cancer
From Ptolemy describing M44 as a “nebulous mass in the breast of cancer” to Chinese astronomers calling it a “cloud of pollen,” the Beehive has held the attention of skywatchers over the ages. Also known Messier 44, Praesepe, and NGC 2632.
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.
The Garden Astronomer 