Northern lights is advertised as "one ball - one shawl" for the pattern that comes on the label.
Yards: 492 yards in 150g
Gauge: 22 st/ 4in on US 6 (4.0mm)
Hook size: US G hook (4.0mm) or Yarnivorus Rex says maybe an H.
Fiber: single ply 95% acrylic / 5% rayon (viscose)