Download Navigate without compass

Finding Your Way Without a Compass
At Night
Being able finding the North star is a basic celestial navigation skill for all wilderness
travelers in the northern hemisphere. Navigation by the stars is an old method that is still
useful, assuming the sky is clear. Mariners have used celestial navigation for thousands of
years.
North Star
In the northern hemisphere, the location of north can be determined by the North Star. The
North Star, also known as the Pole star, is a valuable navigation aid because it's located
almost above polar north. The North star is not a very bright star, but unlike the other
stars, it remains at a fixed location in the sky.
In finding the North Star, the Big Dipper (Ursa Major) and Cassiopeia (shaped like a W) are
helpful. Neither of these constellations ever sets and they are always visible on a clear
night, however, they are not always in the same place. The position of the stars in the sky
depends on the time, date and geographical position (latitude and longitude). You probably
have noticed how stars appear to move across the sky during the night. The reason for that
is due to the Earth's rotation around its axis. That's also the reason the sun moves across
the sky in the day. That means the picture you see on this page probably does not match
the sky you are viewing, but that is an easy fix as you can just rotate the image.
To locate north:
· Find the Big Dipper in the sky. Follow the edge of the cup 5 times its length toward a
medium bright star. You have found the North Star, which is virtually north.
· To double check that it’s really the North Star, locate Cassiopeia. The North Star resides
halfway between Cassiopeia and the Big Dipper.
During the Day

Watch method –
o Use regular (non-digital) watch
o Hold a twig upright against the edge of the watch where the hour hand is
o Turn until the shadow lines up with the hour hand
o Imagine a line that bisects the angle formed between the shadow along the hour
hand and the 12 o’clock position; that points south.

Shadow Stick Method
o Push a short, straight stick into the ground
o Angle toward the sun so there is no shadow
o Wait until it casts a shadow at least 6” long
o The shadow will point east
o (and, obviously a N-S line will be perpendicular)

Equal Length Shadow Method
o In the morning push a straight 3 foot long stick into the ground
o Tie a string around the base (use a bowline so the knot slips)
o Tie the other end of the string to a small stick that is at the tip of the shadow
o Draw a circle around the large stick using the small stick
o Push the small stick into the ground at the tip of the shadow
o In the afternoon place another small stick where the tip of the shadow touches the
circle
o A string run between the morning stick and the afternoon stick will form an E-W line
with west being the morning stick