Makemake has one known moon with the tentative name S/2015 (136472) 1.
| Name | S/2015 (136472) 1 |
|---|---|
| Discovery date | 2015 (Alex H. Parker, Marc W. Buie, Will M. Grundy, Keith S. Noll) |
| Semi-major axis | ~ 20 900 – 300 000 km |
| Diameter | ~ 175 ± 75 km |
| Orbital period (Length of a year) |
12.4 – 660 Earth days |