Shadows is a program used to design sundials and astrolabes. It can be used by everybody without any required technical skills. Shadows will calculate everything and print the drawing according the user's preferences. Shadows is used by thousands of users around the world.
Key points of Shadows
Totally free of charge in its entry level
The simplest tool for designing a sundial or an astrolabe
Calculates, draws and prints drawings at real scale
Simulates, displays and animates the shadow of the style
Data base of 2800 locations with latitude, longitude and time zone
Exports drawings to other drawing or CAD applications (in DXF or WMF format)
Plane sundials with polar style of any orientation or reclination
Analemmatic, cylindrical and bifilar sundials
Planispheric and universal astrolabes (front and back)
Rotation of the astrolabe rete and alidade
Complete solar ephemeris
Solar diagram with horizon mask
Graphs of Equation of time
Optimization of solar pannels orientation
Complete online help
Available in 13 languages (EN, FR, DE, IT, ES, PT, BR, DU, GR, HU, PL, RU, SV)
Shadows in its basic level is free.
It comes with a powerful set of functions and a full documentation. If you want to discover further functions, you can acquire a license of Shadows Expert or Shadows Pro. The features of Shadows include:
* Plane sundials with polar style (horizontal, vertical declining, equatorial, polar, meridian)
* Sundial drawn to scale 1, of any size and any orientation or reclination,
* Compatible with any location on Earth, in northern or southern hemisphere (2800 locations installed),
* Style drawn to scale 1,
* Tables of coordinates of hour line points and declination arcs,
* Drawing of solar or mean hours, with or without longitude correction,
* Text frames that can be moved and resized on the sundial, with preinstalled list of mottoes,
* Equation of time drawn in various forms,
* Drawing of a protractor and azimuth circle,
* Full online help, user interface translated in 13 languages,
* and more...
A large choice of sundial types
Shadows offers a choice among a lot of different types of sundials:
* Plane sundials with polar style (the most classical) for any orientation and reclination
* Analemmatic sundials
* Cylindrical sundials (Armillary ring, shepherd's dial)
* Bifilar sundials (also known as Mitchnik sundials)
Each type is described precisely and can be configured step by step using the Sundial creation Wizard.
You can start with a simple type of sundial (direct south for example) and progressively discover more technical types later.
The sundial is drawn to scale
Vertical due South sundial calculated and drawn by Shadows. The user can add text and images and customise the drawing options. The position of the style is marked with points A (gnomon) and B (polar style).
Once designed on screen, your sundial will be printed to scale on one or several pages depending on its size. Then you just need to reproduce the drawing on the final material. You can also print a template to cut the style, and print the coordinate list to use with a protractor and a ruler.
A sundial designed for your home
The sundials created with Shadows are totally customizable for your location and the wall declination. The program comes with a database which contains more than 2500 cities over the world, each with its latitude, longitude and time zone. Obviously, you can enter new records in the database, especially using the Google Earth or the Google Maps interface.
You can create sundials for any place on Earth, even in the southern hemisphere. Shadows offers you to create a genuine and accurate sundial you certainly will enjoy more than any ready-made sundial you can find in a garden shop.
Simulation of the shadow
Shadows contains an exciting tool that simulates the shadow of the style for the current instant, or in an animated mode during the day. The program also calculates the shadow cast by a roof, in order to check if the sundial will always be lit all the year long.
The simulation of the shadow can be used during educational activities, to explain variations of the Sun altitude depending on the season, or to introduce astronomy concepts such as inclination of the Earth axis, seasons, etc
Changelog for this release:
* New mariner's astrolabe (5105)
* Improved drawing of the back of an astrolabe (5105)
* Drawing of the noon line of the reference time zone (5105)
* Drawing of the analemma curve shifted for the reference time zone (5105)
* Selection of the analemma curve color (5105)
* Ephemeris updated in real time are now available in freeware version (5105)
* Correction of an error when loading a sundial file; regression introduced in 5105 (5120)
* Correction of the DXF export of universal astrolabes (5120)
* Correction of the database list display (5105)
* Correction of the DXF export of planispheric astrolabes (5105)