Sensitivity achieved in the JWST/NIRCam Altair data, showing deep limits on solar system orbital scales. Left: contrast limits for the first-epoch F444W JWST/NIRCam Altair data. The bump in contrast around 3﹩\mathop{.}\limits^{{\unicode{x02033}}}﹩5 corresponds to the bright star south of Altair, visible in Figure 1. Right: mass limits for the F444W NIRCam data computed using the [M/H] = +0.5 dex metallicity, solar C/O ratio, ﹩\mathrm{log}{K}_{{\rm{zz}}}=7﹩ dex Sonora Flame Skimmer model (J. Mang et al. 2026), showing sensitivities down to 0.7 Saturn mass.