Alpha-Orionis (Betelgeuse). Red Giant. We see Titanium-Oxide molecular bands in the spectrum! Grating in front of 200 mm zoomlens. Analysis: Roar Skartlien. Reference spectra from the atlas of Richard Walker, 2010.Alpha-Orionis (Betelgeuse). Red Giant. We see Titanium-Oxide molecular bands in the spectrum! Grating in front of 200 mm zoomlens. Analysis: Roar Skartlien. Reference spectra from the atlas of Richard Walker, 2010. Sirius. Hydrogen lines are strong. Grating in front of 200 mm zoomlens. Analysis: Roar Skartlien. Reference spectrum from the atlas of Richard Walker, 2010.Sirius. Hydrogen lines are strong. Grating in front of 200 mm zoomlens. Analysis: Roar Skartlien. Reference spectrum from the atlas of Richard Walker, 2010. Orion-Nebula emissions in hydrogen, helium, and doubly ionized oxygen. Grating in front of 200 mm zoomlens. Analysis: Roar Skartlien. Reference spectrum from the atlas of Richard Walker, 2010.Orion-Nebula emissions in hydrogen, helium, and doubly ionized oxygen. Grating in front of 200 mm zoomlens. Analysis: Roar Skartlien. Reference spectrum from the atlas of Richard Walker, 2010. Original image. Grating in front of 200 mm zoomlens.Original image. Grating in front of 200 mm zoomlens. Spectral Hyades. 200 mm zoomlens. See the absorption lines in Aldebarans companions! Photo: Roar Skartlien.Spectral Hyades. 200 mm zoomlens. See the absorption lines in Aldebarans companions! Photo: Roar Skartlien. Seven Spectral Sisters of the Pleiades. Grating in front of 200 mm zoomlens. Analysis: Roar Skartlien.Seven Spectral Sisters of the Pleiades. Grating in front of 200 mm zoomlens. Analysis: Roar Skartlien. Pollux. Grating about 200 mm in front of sensor in prime focus of f/6 Newtonian 10 inch.Pollux. Grating about 200 mm in front of sensor in prime focus of f/6 Newtonian 10 inch. Pollux. Grating about 40 mm in front of sensor in prime focus of f/6 Newtonian 10 inch. Higher order spectra visible.Pollux. Grating about 40 mm in front of sensor in prime focus of f/6 Newtonian 10 inch. Higher order spectra visible. Pollux. Grating about 25 mm in front of sensor in prime focus of f/6 Newtonian 10 inch. Several higher order spectra visible.Pollux. Grating about 25 mm in front of sensor in prime focus of f/6 Newtonian 10 inch. Several higher order spectra visible. Emission bands in street lights. 200 mm zoomlens.Emission bands in street lights. 200 mm zoomlens. Neighbors outdoor lights with emission bands. See wall reflects in reddish/green?Neighbors outdoor lights with emission bands. See wall reflects in reddish/green?