At 2048 ZT on 13 October you are in DR position LAT 44°02.8'S, LONG 146°58.3'E, when you observe an amplitude of Venus. The planet is about one Sun's diameter above the visible horizon and bears 222.2°psc. The variation is 15°E. What is the deviation?

Question

At 2048 ZT on 13 October you are in DR position LAT 44&deg;02.8'S, LONG 146&deg;58.3'E, when you observe an amplitude of Venus. The planet is about one Sun's diameter above the visible horizon and bears 222.2&deg;psc. The variation is 15&deg;E. What is the deviation?

Accepted Answer

Option C: 1.0&deg;W. Compute Venus's true azimuth at the visible horizon using Bowditch amplitude procedures. Compare the true bearing with the standard compass reading and apply variation to isolate and verify the correct compass deviation value.

At 2048 ZT on 13 October you are in DR position LAT 44&deg;02.8'S, LONG 146&deg;58.3'E, when you observe an amplitude of Venus. The planet is about one Sun's diameter above the visible horizon and bears 222.2&deg;psc. The variation is 15&deg;E. What is the deviation?

At 2048 ZT on 13 October you are in DR position LAT 44°02.8'S, LONG 146°58.3'E, when you observe an amplitude of Venus. The planet is about one Sun's diameter above the visible horizon and bears 222.2°psc. The variation is 15°E. What is the deviation?