Photometric Standardization of Eclipse Spectra
Abstract
The purpose of the research was to determine the energy of each wavelength which enters the aperture of an eclipse camera from any specified sectional area of the chromosphere during the eclipse. To determine this from the photographic plates requires a knowledge of the energy of the wavelength incident on the camera aperture during an exposure of time duration P which will blacken one square centimeter of the plate to a density D. The standardizing spectrum, obtained with the same eclipse camera and upon the same film as the eclipse as the eclipse spectrum, was that of light from a collimator. The methods and limitations are discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 15, 1952
- Accession Number
- AD0740708
Entities
People
- Donald E. Billings
- Eugene N. Parker
Organizations
- High Altitude Observatory