Distance to NGC6822 with Spitzer/FourStar Photometry

The new data presented in this study include multi-epoch observations obtained in 3.6 {mu}m and 4.5 {mu}m with the Spitzer Space Telescope taken for the Carnegie Hubble Program. We also present new observations in J, H, and K_s_ with FourStar on the Magellan Baade Telescope at Las Campanas Observatory.

We determine mean magnitudes and present new period-luminosity relations in V, I, J, H, K_s_, Infrared Array Camera 3.6 {mu}m, and 4.5 {mu}m. In addition to using the multi-band distance moduli to calculate extinction and a true distance, we present a new method for determining an extinction-corrected distance modulus from multi-band data with varying sample sizes. We combine the distance moduli and extinction for individual stars to determine E(B-V)=0.35+/-0.04 and a true distance modulus {mu}_o_=23.38+/-0.02_stat_+/-0.04_sys_.