Build your own first spectrograph with Star'Ex BR (Star'Explorer). Use it to record the spectra of low-brightness stars – but also those of comets, galaxies or quasars! A special feature of Star'Ex BR is that the entire visual spectrum appears on a single image - from blue to red.
Star'Ex is a project by Christian Buil, who is already known for projects such as Sol'Ex. On the Shelyak website, you will find all the information you need to build and use this instrument. Print all parts with a 3D printer (or have them printed by specialists) and assemble the instrument together with the optical parts of this kit. All the optical elements you need can be found in this kit: slit, lenses, parts for guiding...
With a small telescope, you can already record spectra of objects with low brightness in low resolution. This makes it possible to observe the entire visual range – i.e. the continuum of the object as well as the numerous absorption and emission lines. All these phenomena are signs of the activity of stars.
