The Nolan Street of Pompeii in Chapter VI of Das Templum by Heinrich Nissen

In the Chapter VI of a book by Heinrich Nissen, entitled Das Templum, 1869, we can find author claiming Nolan Street Pompeii had been aligned according to sunrise on summer solstices. Here discuss how Nissen justified his thought. We will see in particular point view about orientation as rebuked Hyginus. discussion, also mention observations made Ferdinando Castagnoli Nissen's Templum and Stefano De Caro Street.