The Design of A Two-Bands Telescope-Spectrograph

The design plan of a 40cm solar telescope-spectrograph is described in this paper.This telescope will be developed for carrying out intermediate experiments to design and make large solar towers in China for making the testing observations of the preliminary selected sites, for being an SSHG special instrument to carry out the patrol observations and a new observation device to be used during the SMY of Cycle 22.The Gregory reflective imaging system will be adopted for the telescope and the spectrograph will be worked at H_α and H.K spectral windows, both of the telescope and the spectrograph will be enclosed in a vaccum tank.An H_α monitor will be equiped to take the pictures of the chromosphere and the spectra simultaneously.This telescope will be placed on a steel platform with the height of 15-20m.It will be an instrument attractive in low price and high spatial resolution.