Another method, as shown in my examples, is to omit the landscape and use a gnomonic chart for the starfield. Gnomonic maps depict “great circles” — such as those that meteors traverse — as straight lines, which will simplify your sketching efforts. As Perseus rises, you can continue with the sketch. Charts from Gnomonic Atlas Brno 2000.0 are available on the International Meteor Organization’s website at
www.imo.net/visual/minor/gnomic/atlas. I printed the chart that centers on the constellations Perseus and Cassiopeia (brno-01.pdf) and then attached it to my sketch board along with a dimmable red light.