I live in Alamos, Sonora, Mexico. Is there a web site that is available to help me find the Magnetic Deviation from Compass North?
2006-06-28 08:25:57 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Most maps intended for navigation or hiking have magnetic deviation printed on them. Here is an online deviation map for people lining up satellite dish antennae.
2006-06-28 08:33:39 · answer #1 · answered by campbelp2002 7 · 0⤊ 0⤋
A map of your area should list "Magnetic Deviation" in degrees.
Simply off set your compass by that much and you are good to do.
For example if you had a magnetic deviation of -10 degrees you would rotate your dial so that 350 was aligned with the arrow on the base of the compass. Then turn until the compass arrow aligns with N on the dial. Then walk in the direction of N on the base and you will be facing true north.
2006-06-28 17:20:28 · answer #2 · answered by boter_99 3 · 0⤊ 0⤋
Magnetic Deviation should be at the lower left hand corner of the map. The amount of deviation from true north is different for each area. If you want to use a traditional compass then you can use the numbers there to adjust your compass setting. That is why the expensive compass has a rotating ring.
Magnetic declination has been measured throughout the U.S. and can be corrected for on your compass. The line of zero declination runs from magnetic north through Lake Superior and across the western panhandle of Florida. Along this line, true north is the same as magnetic north. If you are working west of the line of zero declination, your compass will give a reading that is east of true north. Conversely, if you are working east of the line of zero declination, your compass reading will be west of true north. The exact amount that you need to adjust the declination on your compass to reconcile magnetic north to true north is given in the map legend to the left of the map scale.
2006-06-28 15:39:45 · answer #3 · answered by azelb 3 · 0⤊ 0⤋
I'm not sure about a web site, but if you can find a copy of a topographic map for your area, there is an indicator in the map information block that will show you the difference between magnetic north and true north.
I haven't found any maps of Mexico, but you might try googling topographic maps & Mexico . . .
2006-06-28 15:38:08 · answer #4 · answered by Dave_Stark 7 · 0⤊ 0⤋
First, observe the moon. If it is not a full moon and also rises before the sun sets, the illuminated side is west. If the moon rises after midnight (standard time) the illuminated side is on the east. This is true everywhere on Earth. Approximate north and south based on the rough east-west line of the moon. No matter where you are if you are standing with the west side to your left then then true north will be straight ahead.
2006-06-28 15:39:39 · answer #5 · answered by Anonymous · 0⤊ 0⤋
At night, look for the north star. True north is close. The north star will, over the course of 24 hours, circle the axial north pole.
2006-06-28 16:13:25 · answer #6 · answered by bequalming 5 · 0⤊ 0⤋
find the north star , align N on your compass to the north star, note where the needle is pointing. Bingo deviation.
or buy an aviation or marine chart, deviation for your locale will be on it.
2006-06-28 15:44:31 · answer #7 · answered by JCCCMA 3 · 0⤊ 0⤋
Go to Canada. "The True North, strong and free" is in the country's national anthem. And July 1 is Canada Day.
2006-07-02 10:28:02 · answer #8 · answered by y2 1 · 0⤊ 0⤋
Use GPS. Many stores sell GPS locaters, some fairly cheaply.
2006-06-28 15:29:18 · answer #9 · answered by ritifo 2 · 0⤊ 0⤋