Hot dense → continuous. Hot thin gas → emission lines. Cool gas in front → absorption lines.
Element cards (choose 1–3)
0 selected
Line positions are the “fingerprint.” Intensities are illustrative in v1.
Unknown overlay
off
Unknown is unlabeled on purpose. Pick your elements, then check.
Instrument resolution (broadening)
0.20 nm
narrowwide
Predict → Play → Explain
Start with the mission prompt, then explore. When you click “Check Match,” commit to an answer.
In v1, line strengths are illustrative; the goal is pattern recognition.