Determine the rotation period of WISE 0855
Determine the exact rotation period of the brown dwarf WISE 0855 from observations with a sufficiently long temporal baseline.
References
WISE 0855 has shown amplitude modulations on timescales between $\sim$5 and 10 hours, but the exact rotation period of WISE 0855 is still unknown.
— Water Cloud and Chemical Modulations in the Coldest Brown Dwarf
(2609.20664 - Miles et al., 17 Sep 2026) in Section 4.2, “Periodicity of WISE 0855 and Long-Term Variability”; reiterated in Section 8, “Summary”