NRES Analyzer
Lines
H
α,
β,
γ,
δ,
ε
He
1,
2,
3
Na
D1,
D2
Ca
G,
H,
K
Mg
b1,
b2,
b4
Fe
E2,
b3,
c,
d,
G
Hg
H
2O
(651.7 nm)
O
2
y,
A,
B,
x,
a
Drag&Drop or load FITS datafile to show spectrum.
Keyboard Controls
- right/left arrow keys move spectrum
- +/- key spreads/narrows spectrum
- up/down arrow keys spreads/narrows spectrum in flux
- Click and "v" calculates Doppler-velocity considering closest spectral line
- Click and "c" calibrates whole spectrum to closest spectral line, e.g. compensates Doppler effect
- Click and "n" opens NIST Databank search around clicked wavelength +/- 0.01 nm (calibrate spectrum first!)
- Click and "m" measures distances between points