What's Happening in There? Using Photometry to Investigate Asteroseismology of a DBV Star

White dwarfs are the end stage of life for almost all stars. Most white dwarfs will pulsate at some point as they move along the white dwarf cooling track. The pulsating, helium atmosphere white dwarf GD358 has been photometrically observed for over 40 years. After an analysis of Transiting Exoplanet Survey Satellite (TESS) data from 2020-2022, GD358's expected frequency multiplets of higher radial order are moving further apart, sometimes changing within as short of a span as one month. Meanwhile, the spacing of the multiplets of lower radial order has remained the same over this same timeframe. Five nights of ground-based observations were conducted in 2023 to investigate if these patterns continue in order to further explore the relationship between rotations and pulsations.