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You can also try momentRH, which is the NOT the half light radius, but the expectation value of r^0.5 (again from StackObjectAttributes or StackObjectView) .
 | Same sample as above, but now with log10(imomentRH) as the separator. |
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Another possibility is to use the lensing parameters, and try and make something which is not affected by seeing . These are found in the ForcedMeanLensing table. As an example, here is (iLensObjSmearX11+iLensObjSmearX22)/2.0 - (iLensPSFSmearX11+iLensPSFSmearX22)/2.0
| The combination of lensing parameters suggested in the text as a function of forced iPSF mag (from ForcedMeanObject) |
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Other suggestions
The various model fits (Sersic, Exp, deVauc, Petrosian) also have radii associated with them, so you could try using mag v log(radius) for these, but remember they are not available for all objects.Konr
