A photometric study of the solar aureole under various weather conditions

Bo Rydgren

doi:10.3402/tellusa.v20i1.9918

A photometric study of the solar aureole under various weather conditions

Tellus

Volume 20 (1968): Issue 1

By: Bo Rydgren

Open Access

|Jan 1968

Abstract

By means of a coronagraph and a visual skyphotometer which is based upon coronagraph principles, the intensity of the solar aureole in the interval 4’–66’ from the sun limb has been studied. The results show that there is a good correlation between the type of prevailing air mass and the characteristics of the measured intensity. The intensity variation with time and height is studied and discussed.

References

Baumbach , S. , 1938 , Strahlung, Ergiebeigkeit und Elektronendichte der Sonnenkorona. Veröffent-lichungen der Universititts-Sternwarte Kid, No. 22.
Search in Google Scholar Back to article
Evans , I. W. , 1948 , A photometer for measurement of sky brightness near the sun. Journ. of the Op-tical Soc. of America. 38, No. 12.
Search in Google Scholar Back to article
van de Hulst , H. C. , 1948 , Zodiacal light in the solar corona. The Astrophysical Journal 105, No. 3.
Search in Google Scholar Back to article
van de Hulst , H. C. , 1957 , Light scattering by small particles . John Wiley & Sons , London .
Search in Google Scholar Back to article
Lindgren , F. , 1957 , Time-intensity relations for H (Hoe) and He (DO in some solar-prominences. Stockholms Obseryatoriums Annaler. 19, No 11.
Search in Google Scholar Back to article
Mie , G. , 1908 , Beiträge zur Optik trüber Medien, speziell kolloidaler Metallösungen. Annalen der Physik, Vierte Folge 25.
Search in Google Scholar Back to article
Newkirk , G. A. , 1956 , Photometry of the solar aureole. Journ. of the Optical Soc. of America 46, No. 12.
Search in Google Scholar Back to article
Newkirk , G. & Bohlin , D . 1963 . Reduction of scattered light in the coronagraph. Applied Optics 2.
Search in Google Scholar Back to article
Penndorf , R. , 1962 , Angular mie scattering. Journ. of the Optical Soc. of America 52, No. 4.
Search in Google Scholar Back to article
Penndorf , R. , 1962 , Scattering and extinction co-efficients for small absorbing and non-absorbing aerosols. Journal of the Optical Soc. of America 52, No. 8.
Search in Google Scholar Back to article
Unsöld , H. , 1955 , Physik der Sternatmosfeiren. Springer Verlag Berlin—Heidelberg—G8ttingen.
Search in Google Scholar Back to article
Volz , F. , 1954 , Die Optik und Meteorologie der at-mosfärische Trtibung. Berichte des Deutschen Wetterdienstes 2, no. 13.
Search in Google Scholar Back to article
Öhman , Y. , 1955 , Coronagraphic work at moderate altitude above sea level. Vistas in Astronoomy A. Beer, ed. 750, London.
Search in Google Scholar Back to article