how to add the solar symbol as a subscript on the y-axis label?

I am plotting a figure where on the Y axis-label I need the solar symbol. the label would require M_{solar symbol}. I can produce the solar symbol in the label using the following lines of code. But I cannot do "solar symbol" as a subscript. here is my code.

solar = char(9737)
ylabel( ['10^{-6} M',solar, 'Year^{-1}'], 'FontSize',14,'FontWeight','bold')

any suggestions, please ?

[Henry Giddens]

You appear to have answered your own question...

solar = char(9737)
ylabel( ['10^{-6} M_',solar, 'Year^{-1}'], 'FontSize',14,'FontWeight','bold')

[Walter Roberson]

Which MATLAB version are you using? Unicode symbols are not expected to work until R2014b or later.

[Walter Roberson]

The LaTeX symbol name is \astrosun from wasysym which is a package not normally included in MATLAB. There are apparently some ways to add LaTeX packages but the ways are not user-friendly.