Symbol for the semisextile, an astrological aspect ⚺ (U+26BA .mw-parser-output .smallcaps{font-variant:small-caps}semisextile). The symbol is half a sextile, so though the symbol means 30 degrees, the 4 arms are at an angle of 60° to each other (the top of a hexagon). See http://std.dkuug.dk/jtc1/sc2/wg2/docs/n3110.pdf, esp. Figure 8.
Own work
Lucis