string manipulation - How do I construct a "named character" programmatically?

Why am I getting the error

Syntax::sntunc: Unicode longname in the string is unterminated.

from the following?

astroSymbol[name_String] := ToString[ToExpression["\[" <> name <> "]"]] <> "" ;

Is there something I need to do to wrap the escape sequence to avoid this error?

Answer

To include a backslash in a string, you need to escape it, like so:

"\\[" <> name <> "]"