Fourier transform emission spectra of the A2Π → X2Σ+ and B2Σ+ → X2Σ+ transitions of CaD

► Calcium hydride is an important molecule in astrophysics. ► The visible emission spectrum of CaD has been recorded at high resolution. ► The A-X and B-X band systems were observed and rotationally analyzed. ► Spectroscopic constants and Dunham coefficients have been determined.