The Gaia parallax discrepancy for the cluster Pismis 19, and separating $\delta$ Scutis from Cepheids

Daniel Majaess, Charles J. Bonatto, David G. Turner +10

Pre-Gaia distances for the open cluster Pismis 19 disagree with Gaia parallaxes. A 2MASS $J{K}_s$ red clump distance was therefore established for Pismis 19 ($2.90\pm 0.15$ kpc), whic…