Raster
View
Rotate
the celestial sphere by tapping on the left or right side of the
screen. Tap again to stop. Using the slow rotation, you can
precisely align the celestial body on the center-line of the
screen. Tap to stop, and there is the bearing. In the example, we
can see that the Moon is at 139 degrees Magnetic, and it is about
33 degrees above the horizon.
The
names of the brightest Selected Navigation Stars are shown in
yellow (first magnitude). The next brightest Selected Stars are
shown in orange (second magnitude). Other Tabulated Stars are
shown in red. Constellation names are shown in gray.
NavPak
shows the Sun, Moon, 5 planets, and 128 stars.
The
Vector View shows the names of the stars and planets. The Selected
Navigation Stars are generally the brightest and are shown as
bright yellow. The names are the Proper Names in English. Other
Tabulated Stars are shown a little dimmer and their names are a
Greek character with a 3 letter abbreviation of the constellation.
These are standard Bayer designations. NavPak has 128 stars, which
includes the 57 Selected Stars, Polaris, and most of the other
stars brighter than 3.0. The exceptions are where a tabulated star
is very close to a much brighter Selected Star.
Main
Menu Screen
SETUP:
Set
your magnetic variation and assumed position, and be sure that the
correct GMT is shown. Enter the magnetic variation to the nearest
whole degree. Enter position latitude and longitude to degrees and
decimal minutes. For simplicity, you can set the position
(latitude and longitude) to the nearest whole degree, and the
resulting bearing should be within 1 degree.
Input
Panel:
Shown here is the panel to input your assumed latitude. Other panels are used to input assumed longitude and magnetic variation.