AI Lab

Stellar Spectrum Analysis Lab

Interactive spectroscopy tools built on the project’s research algorithms. Generate the theoretical standard spectrum of any spectral type, or upload two spectra to compare their similarity.

Source algorithms: gen-spectro2.py & cos_similarity.pyCore algorithms ported to TypeScript, running live in the browser

Select spectral type

Surface temperature5,800 K

2,500 K (M-type red dwarf)50,000 K (O-type blue giant)

Theoretical standard spectrum

Visible spectrum color band

Stellar parameters

Spectral typeG-type

Surface temperature5,800 K

Peak wavelength (Wien)500 nm

Example starSun

Mass range0.8-1.04 M☉

ColorYellow

Yellow star (like the Sun); Ca H&K lines strongest, rich in metal lines

Absorption lines (14)

393.37 nmCa II H&K0.65

396.85 nmCa II H&K0.60

430 nmG-band (CH)0.55

517.27 nmMg I0.50

518.36 nmMg I0.50

589 nmNa I D0.65

438.35 nmFe I0.40

527.03 nmFe I0.35

532.8 nmFe I0.35

422.67 nmCa I0.45

656.28 nmH-alpha0.25

486.13 nmH-beta0.20

760.4 nmO2 A-band0.60

822.7 nmO2 Z-band0.20