astronomical spectroscopy [SPECT] The use of spectrographs in conjunction with telescopes
to obtain observational data on the velocities and physical conditions of
astronomical objects. { as trə na¨m ə kəl spek tra¨s kə pe¯ }
to obtain observational data on the velocities and physical conditions of
astronomical objects. { as trə na¨m ə kəl spek tra¨s kə pe¯ }