The Bubble Nebula (also designated NGC 7635) is a faint emission nebula in the constellation Cassiopeia the Queen near its border with Cepheus. It rides high in the sky at this time of year. You can use the bright open cluster M52 in Cassiopeia as a guide to the Bubble. The nebula lies 0.6° southeast of M52. When Continue reading "Michael’s Miscellany: Observe the Bubble Nebula" The post Michael’s Miscellany: Observe the Bubble Nebula appeared first on Astronomy Magazine .