| META TOPICPARENT |
name="LogBookAstronomy" |
Log Book Entry No.151
 Created: 08 Nov 2017 12:53:16 |
Last Revised: 08 Nov 2017 12:53:16 |
 LenaLenz1 |
 Solar Limb Darkening LL |
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 10:30 at dome, D. Bedingham, L. Lenz
- cloudy weather => took no images of Sun
- Vignetting images from last week were not symmetric
=> will have to retake those images with diffuse light (outside) and a variety of exposure times to achieve different max/min intensity values,
the ratio of I_max/I_min should be approx the same throughout
Next steps:
- Take correct vignetting images with different exposure times and diffuse light
- Analyse new vignetting images and apply curve fitting to it => V(x) => can receive real intensity with I(x)*V_max/V(x)
- Estimate unscattered intensity f of Sun images
- Fit curve to unscattered intensity => Gaußian fit => should get data back (~Gaußian curve)
- Optimise f
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| META FORM |
name="%25SYSTEMWEB%25.LogBookForm" |
| FORM FIELD Subject |
Subject |
Solar Limb Darkening LL |
| FORM FIELD Status |
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| FORM FIELD Author |
Author |
TWikiGuest |
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