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Sirius 2.0 solar arc
Sirius 2.0 solar arc










sirius 2.0 solar arc

■ Want to try for Sirius B, the famous white dwarf? Sirius A and B are now at the apparent widest apart of their 50-year orbit, 11 arcseconds apart, and will remain so for the next several years before they start closing up again. The Cleaver is chopping toward lower right. Down to Sirius's lower left is the Cleaver's other end, including its short handle, formed by the triangle of Adhara, Wezen, and Aludra. Sirius and Murzim (to its right) are the Cleaver's wide top end, with Sirius sparkling on its top back corner. These form the unmistakable Meat Cleaver. In a moonless dark sky, the stars of Canis Major can be connected to form a nice dog profile, but through a brighter sky only his five brightest stars show well. March pushes him westward and brings his dog, Canis Major sporting Sirius on his chest, onto the south meridian. ■ February was Orion's month to stand at his highest in the south in early evening. However, Vega and Capella are very close on its heels. So for northerners who can never see Canopus or Alpha Cen, Arcturus is bested by Sirius alone. It's bested only by Sirius, Canopus, and Alpha Centauri (counting the combined light of Alpha Cen A and B they appear as one to the unaided eye).

sirius 2.0 solar arc sirius 2.0 solar arc

It climbs higher in the east later in the evening.īy modern measurements Arcturus is visual magnitude –0.05, making it the fourth-brightest nighttime star. ■ Spot Arcturus, the Spring Star, glittering pale yellow-orange very low in the east-northeast after nightfall.












Sirius 2.0 solar arc