He I 1083 nm · Metastable Helium Escape
unseel.com · 2³S orthohelium · exoplanet atmospheric escape
Line 1083.3 nm
Transit dip 0.000%
Stage
K-dwarf XUV
He⁺ ionization
Metastable 2³S He
1083 nm absorption
Unseel.com · The Metastable Helium 1083 nm Triplet