AbstractDaily photometry of the full solar disk began at the San Fernando Observatory in mid-1985. At present, observations with two photometric telescopes produce images in the red, blue and CaII K-line. The smaller telescope obtains images that are 512×512 pixels. The larger one obtains images that are 1024×1024 pixels. In addition, the larger telescope produces images with a narrower K-line and an IR filter. Images are processed to determine a number of photometric quantities including sunspot deficits and facular/network excesses. These photometric quantities are highly correlated with fluctuations in the total solar irradiance (TSI) from spacecraft experiments.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Photometry of the full solar disk at the San Fernando Observatory


    Contributors:
    Chapman, G.A (author) / Cookson, A.M (author) / Dobias, J.J (author) / Preminger, D.G (author) / Walton, S.R (author)

    Published in:

    Advances in Space Research ; 34 , 2 ; 262-264


    Publication date :

    2002-12-17


    Size :

    3 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English