2 papers
astro-ph.SR2023
An Optical Analysis of Sunspots as Predictors of Geomagnetic Storms
Matthew Shelby, Scott Scharlach, Petar Matejic +2
Although a variety of phenomena may create a geomagnetic storm on Earth, the most severe geomagnetic storms arise from solar activity, and in particular, coronal mass ejections (CM…
astro-ph.GA2023
The Kinematic Distance to NGC 6309
Scott C. Scharlach, Colton G. Morgan
We report an updated value for the distance to the planetary nebula NGC 6309 (the Box Nebula). The distance is found through two Kinematic Distance Methods (KDMs): the system of tw…