M82

High-resolution spectra of the central core of the starburst galaxy M82 were taken on the 3rd night of the run. Pictured here are two images (scroll down to both of them). The top image is a 2x zoomed image captured in the slit-viewing camera through a KL filter; the dark line is the entrance slit (0.288 wide x 24 arcsec long) to the spectrograph. The bottom image is the sky subtracted spectrum obtained simultaneously covering the approximate spectral region 3.6 to 4.06 microns. The rotational velocity of the  galaxy is very evident in the prominent emission line of Br-alpha (4.05226 microns).