1
Chemistry leaves a notch
Every missing wavelength is treated as evidence, not ornament or atmospheric noise.
Ca II · 393 nm
PROJECTED SOLAR REGISTER
Read the dark lines
2
Blue carries the densest proof
The short-wave register gathers the hardest marks where calcium and hydrogen crowd.
H K · clustered
3
The plate orders uncertainty
Lettered bands turn a trembling solar image into a catalog that can be checked.
A–K · indexed
4
A star becomes legible
The same ruled strip lets distant light declare its substance before it is touched.
C · 656 nm