Lockyer, Sir Joseph Norman
Sir Joseph Norman Lockyer (lŏk´yər), 1836–1920, English astronomer, educated on the Continent. One of the first to make a spectroscopic examination of the sun and stars, he devised (1868), independently of P. J. C. Janssen, a method of observing solar prominences with the spectroscope in daylight. In the same year he discovered the element helium in the sun and applied the name chromosphere to the layer, or envelope, of gas around the sun. He was elected to fellowship in the Royal Society (1869) and served as professor of astronomical physics of the newly founded Royal College of Science and director of the Solar Physics Observatory (1890–1913). Between 1870 and 1905 he headed eight government expeditions to observe total eclipses of the sun. He was knighted in 1897. His works include Studies in Spectrum Analysis (1872), Contributions to Solar Physics (1874), The Chemistry of the Sun (1887), and The Sun's Place in Nature (1897).
See biography by A. J. Meadows (1972).
"Lockyer, Sir Joseph Norman." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (March 22, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/lockyer-sir-joseph-norman
"Lockyer, Sir Joseph Norman." The Columbia Encyclopedia, 6th ed.. . Retrieved March 22, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/lockyer-sir-joseph-norman
Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).
Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.
Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:
Modern Language Association
The Chicago Manual of Style
American Psychological Association
- Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
- In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.