Stir liquid components with ice, strain into chilled cocktail glass, garnish with star anise (optional).
The drink is a vivid clear red. Cinzano and Select pair well together. Carpano would also fit with the naming convention, but the body and color would be more dense. Select is somewhat less intense than Campari and has some rhubarb notes that distinguish it.
The optional garnish provides a mild anise aromatic note and some flavor near the end of the glass.
This has become one of my favorite Negroni variants.
An SCT (Schmidt Cassegrain Telescope) is a type of telescope frequently used by amateur astronomers--and the first type I used. For this drink, SCT stands for Select, Cinzano, Tanqueray. A star anise garnish completes the astronomy theme.
https://en.wikipedia.org/wiki/Schmidt%E2%80%93Cassegrain_telescope