The images displayed below have not been fully processed for research purposes. They are meant to be "quick look images" only. For research-quality images please check the SFO Data Archive or contact Angie Cookson.
CFDT1 Photometric Images
This image taken on
2022-09-16 at
19:52:15
U.T.
This CFDT1 Red image was taken at a center wavelength of 672 nm with a 10 nm bandpass and a 512 x 512 pixel resolution. The image has been divided by a mean limb-darkening curve and shown on a contrast scale from -10% to +10%.
This CFDT1 Ca II K-line image was taken at a center wavelength of 393.4 nm with a 1.0 nm bandpass and a resolution of 512 x 512 pixels. It has been divided by the mean limb-darkening curve and displayed on a contrast scale from -20% to +20%.
Please note: the Ca II K-line photometric data are a
composite derived from CFDT1 and CFDT2 images. Composite Version 3.0 was adopted on May 19, 2009,
replacing Composite Version 0.0. The new version affects all indices computed from Ca II K-line
images, including Facular Area, Facular Excess, and K-line Excess.
