4 ms·

45' means 45 minutes, I guess?

• marlor 6y ago
  It does. Personally, as an amateur astronomer, I just read it without thinking. However, I can see how many people may take several " to work it out.
  • _Microft 6y ago
    ' is also the symbol for foot. Which does not make a lot of sense because 45 feet is right there for this purpose but you never know.
    • bluGill 6y ago
      45 feet could be across the street, and thus by the time they safely turn around a lot farther than it looks.