Approximately,
\[
\begin{alignedat}{4}
A^\prime_{\mathbf{7}}&{}\approx{}&-0.071882550435&{}:{}&0.409422702318&{}:{}&0.662459848116&,\\B^\prime_{\mathbf{7}}&{}\approx{}&0.409422702318&{}:{}&-0.071882550435&{}:{}&0.662459848116&,\\C^\prime_{\mathbf{7}}&{}\approx{}&2.495187611587&{}:{}&2.495187611587&{}:{}&-3.990375223174&,
\\
A^{\prime\prime}_{\mathbf{7}}&{}\approx{}&0.703424104663&{}:{}&0.289961789835&{}:{}&0.006614105502&,\\B^{\prime\prime}_{\mathbf{7}}&{}\approx{}&0.289961789835&{}:{}&0.703424104663&{}:{}&0.006614105502&,\\C^{\prime\prime}_{\mathbf{7}}&{}\approx{}&0.168770075942&{}:{}&0.168770075942&{}:{}&0.662459848116&,
\\
A^{\prime\prime\prime}_{\mathbf{7}}&{}\approx{}&-1.290657256567&{}:{}&0.226601345782&{}:{}&2.064055910785&,\\B^{\prime\prime\prime}_{\mathbf{7}}&{}\approx{}&0.226601345782&{}:{}&-1.290657256567&{}:{}&2.064055910785&,\\C^{\prime\prime\prime}_{\mathbf{7}}&{}\approx{}&-0.138583532638&{}:{}&-0.138583532638&{}:{}&1.277167065277&,
\\
A^*_{\mathbf{7}}&{}\approx{}&0.000000000000&{}:{}&0.762865556060&{}:{}&0.237134443940&,\\B^*_{\mathbf{7}}&{}\approx{}&0.762865556060&{}:{}&0.000000000000&{}:{}&0.237134443940&,\\C^*_{\mathbf{7}}&{}\approx{}&0.500000000000&{}:{}&0.500000000000&{}:{}&0.000000000000&.
\end{alignedat}
\]