TM has 7 spectral bands. All 30 m except thermal at 120 m.

• 🟦🟩🟥 Visible (30 m)
  • Band 1 · Blue · 0.45–0.52 µm
  • Band 2 · Green · 0.52–0.60 µm
  • Band 3 · Red · 0.63–0.69 µm
• 🟪 Near-infrared (30 m)
  • Band 4 · NIR · 0.76–0.90 µm
• 🟫 Shortwave infrared (30 m)
  • Band 5 · SWIR-1 · 1.55–1.75 µm
  • Band 7 · SWIR-2 · 2.08–2.35 µm
• 🔥 Thermal — coarser: 120 m
  • Band 6 · Thermal IR · 10.4–12.5 µm

⚠️ Numbering oddity: 1-2-3-4-5-7-6. Band 7 was added later and squeezed in spectrally between 5 and 6 but numbered last.