Helios Sun Calculator

An iPhone/iPod Touch application that graphically predicts the path of the sun from dusk to dawn, on any given day, in any given place.

Designed as an aid to Cinematographers and Stills Photographers working in natural light, Helios is essential to anyone who needs to plan a day around the constantly changing character of sunlight. Gaffers, Grips, Location Managers, Production Designers and First Assistant Directors will already be aware of the value of this information. Other professionals, from Architects and Surveyors to Electricians and Landscape Gardeners can now predict sun exposure in the field, without the need for complex tables or graphs.

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Closed Caption:

Helios is a tool for professionals who
depend on knowing the exact position of
the Sun at any particular location at
any particular time
say hello to the here meter night isn't
it
let's first set a location
tap your finger here you have a few
options either select a location from
the database of locations in the United
States Europe and the rest of the world
will let the gps set your location for
you
you can also enter a custom latitude and
longitude of you really need to
for this demo I will use Pisa in Italy
to have already saved in my favorites
top here and let's set a day every time
you return to the hear me to the Sun is
shown at its highest position in that
day
in this case the sun's position on the
compass style or as a mouth is a hundred
and seventy three degrees
the sun's elevation is 34 degrees above
the horizon
if measured with an inclinometer this
black line helps visualize the length of
shadow in proportion to the heightened
object represented by this red line
this is the sexy bit by moving the Sun
around the dial you can accurately
predict the position and elevation of
the Sun and visualize shadow men
throughout the day by tapping these
arrows
the data is changed by a week allowing
you to see the changing character the
Sun through the seasons
by tapping these arrows you can look at
other locations you have stored four
straight day to tap here for a table of
the information displayed graphically by
the here you need now for the sky view
this should give you a sense of how the
Sun will appear to move across the sky
through the day
imagine that we are lying flat on the
grass by the turf either staring up at
the Dome of the sky a series of
concentric rings show an increase in
elevation every 10 degrees if you were
to measure their height with an incline
ometer the center point is 90 degrees
and would indicate the Sun would be
directly overhead bikini weather the
outer red ring represents the horizon
the journey of the Sun in this example
starts just south of Jewish and travels
low in the sky set in just south of do
West tap here to advance the date a week
at a time in somewhere in the northern
hemisphere the Sun travels higher in the
sky
taking a path that starts further to the
north every day until the equinox as
shown here
having set both data location in the
helium meter let's look at the England
normative you
the accelerometer only iphone needs to
be calibrated if you're not even don't
calibrate it before using the inclement
of the first time you might be out by a
degree or two
by tilting the iphone he lost will show
both times of day that the Sun will be
at this elevation below the time is the
ads month of the Sun at that moment
use the internal matter by citing down
the side of the iphone or holding it in
front of your arms length to observe
shadow angles at different times of day
tap the display of the in kilometer to
temporarily lock and unlock the display
whether predicting the time the building
will cost and inconvenience shadow or
knowing the time the Sun will burst
through a stained glass window
he also makes you at one with the son i
hope you enjoy for years
just a little