# # Program information file # PROGRAM_ID 2022A026 PROGRAM_TITLE Makemake's visible and compositional variability PROGRAM_INV1 Leslie Young PROGRAM_INV2 Silvia Protopapa PROGRAM_INV3 Bryan Holler PROGRAM_INV4 William Grundy PROGRAM_INV5 PROGRAM_SCICAT Centaurs / TNOs / KBOs PROGRAM_ABSTRACT_BEG This proposal is to study runaway volatile migration on the large, ice-covered TNO Makemake. Specifically, the proposal's goals are to [1] confirm and characterize Makemake's recently reported 22.8 hr visible lightcurve with IRTF/MORIS by measuring two complete periods during six full nights within a 15 to 20 night span, and [2] to simultaneously measure or place meaningful limits on compositional variation across Makemake's surface from infrared spectra with IRTF/SpeX/SXD. PROGRAM_ABSTRACT_END