The origin and diffusion of the H and K notation

Details The origin and diffusion of the H and K notation The origin and diffusion of the H and K notation

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jahh...13..120p&link_type=abstract

Journal of Astronomical History and Heritage (ISSN 1440-2807), Vol. 13, No. 2, p. 120 - 126 (2010).

Astronomy and Astrophysics

Astronomy

Spectroscopy, History, Sun, Spectrum, Fraunhofer Lines

Scientific paper

Though many or most astronomers and astronomy students may think that H and K, as in the Ca II ‘H and K lines’, were named by Fraunhofer, actually only the H line was in Fraunhofer's original notation. He also used ‘I’ to indicate the end of the spectrum in his widely-reproduced 1814 drawing, of which an engraved version was published in 1817. We have searched references from nineteenth-century books and journals to find the first use of ‘K’ to indicate the ionized-calcium spectral line at 393.3 nm and located the probable first use and eventually the reuse of the notation.

Affiliated with

Also associated with

No associations

Rating

The origin and diffusion of the H and K notation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The origin and diffusion of the H and K notation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The origin and diffusion of the H and K notation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1225008