- Click image for larger view. Remember: This chart is for about 90 minutes after sunset. With each passing hour these stars will rotate counter clockwise around the Polaris, the North Star. So Vega will appear to get lower as the night goes on and Capella will be getting higher. (Prepared from Starry Nights Pro screen shot.)
Our north sky map this month is covering a slightly larger area than normal because I want to capture the relationship between Vega and Capella – two of our northernmost guidepost stars – that anchor the north sky in November. Think of them as two cornerstones and a line drawn between them will go quite close to the North Star, Polaris. What’s more, Vega will help us find the head of Draco the Dragon.
Draco is one of the north sky’s more charming constellations, for its long, slithery form does call to mind a dragon. It’s quite easy to pick out, really, but you do need dark skies with little light pollution. Start by locating Vega. The four stars that mark the head of Draco – one is quite faint – will be found roughly halfway between Vega and the two bright stars that mark the end of the cup of the Little Dipper. Having located the head, you really need a chart handy to find the rest of this long, twisting, dragon body – but it is pretty easy, and once you identify it, you won’t forget it.
Draco also harbors a special treat for binocular and small telescope users. That faint star (Nu) that marks one corner of the Dragon’s head? It’s really two, perfectly matched, 4.9 magnitude stars that are far enough apart so they can be split with binoculars – assuming you have good eyes and a really steady hand. In a small telescope they are absolutely delightful and earn their nickname of Dragon’s Eyes. ( There are actually three neat double stars in this region that are a delight for the telescope user. I’ve written about them in the double star observing blog I share with my friend John Nanson.)
Meanwhile, to the east we have a bright half circle of asterisms we’ve been talking about in the previous months. Start with Capella and move on up to the “Bow” of Perseus and from there higher still to the “W” of Cassiopeia. Directly above the Pole you’ll find the “Home Plate” of Cepheus pointing down towards Polaris.