|Spectroscopy relates to the dispersal of an object's light into its constituent colors (i.e. energies). There are two characteristic classes of spectra: Continuous and discrete. For a continuous spectrum, the light is collected of a wide, continuous range of colors (energies). With discrete spectra, one sees only bright or dark lines at very distinct and sharply-defined colors (energies). Discrete spectra with bright lines are known as emission spectra; those with dark lines are called absorption spectra. Spectroscopy is a powerful tool in astronomy, which helps in fetching information about the temperature, density, composition, and important physical processes of an astronomical object. The top journals are peer reviewed scholarly journals. These provide high quality, meticulously reviewed and rapid publication, to cater the insistent need of scientific community. These journals are indexed with all their citations noted. The top open access journals are indexed in MEDLINE, PUBMED, SCOPUS, COPERNICUS, CAS, EBSCO and ISI. Chemical sciences journal is the Leading journals in Spectroscopy. The journal presents experimental and theoretical articles on all subjects relevant to spectroscopy and its modern applications.