Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

The NIST Atomic Spectra Database



Wolfgang L. Wiese


A summary of the contents and features of the new NIST Atomic Spectra Database is presented. All material in this large database has been obtained from critical data assessments done over the last 30 years. Only reference data, i.e., data fulfiling certain quality requirements, are included. For each spectral line and energy level, one numerical value--the best available value--is tabulated.
Aip Conference Proceedings
No. 543


atomic energy levels, atomic spectra, NIST database, reference data, spectral lines, transition probabilities, wavelengths


Wiese, W. (2000), The NIST Atomic Spectra Database, Aip Conference Proceedings (Accessed June 24, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created January 1, 2000, Updated February 17, 2017