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— Bob McWilliams, "3-D Space," White Dwarf #73


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Colonies Sphere — Districts

Image - 3D hex-prisms

Detail of three-dimensional game space of the Earth Colonies Sphere (illustration by Redmond Simonsen from StarForce: Alpha Centauri)

District is the nomenclature developed by the Prometheus Foundation for a standard astrographic region defined as a rectangular cube measuring eight parsecs (spin-trailward) by ten parsecs (core-rimward) by nine parsecs (up-downward) and divided into 720 volumes of one cubic parsec each called "hex-prisms."  The Colonies Sphere is not actually a sphere but rather a rectangular volume of 64 Districts measuring 36 parsecs (up-downward) by 32 parsecs (spin-trailward) by 40 parsecs (core-rimward).  Each of the 64 Districts is identified by a distinct name and location within the overall volume.

A "Disc" is the set of planes corresponding to the nine core-rimward / spin-trailward "discs" along each zenith-nadir ("zz") coordinate of a District, giving a rectangular volume measuring 32 parsecs by 40 parsecs by nine parsecs and comprised of the "discs" of sixteen Districts.  There are four Discs in the Colonies Sphere, identified as Discs 1 through 4, moving from upward to downward.

A "Ring" is the set of planes corresponding to the ten spin-trailward / up-downward "rings" along each core-rim ("yy") coordinate of a District, giving a rectangular volume measuring 32 parsecs by ten parsecs by 36 parsecs and comprised of the "rings" of sixteen Districts.  There are four Rings in the Colonies Sphere, identified as Rings 1 through 4, moving from coreward to rimward.

A "Spoke" is the set of planes corresponding to the eight core-spinward / up-downard "spokes" along each spin-trailing ("xx") coordinate of a District, giving a rectangular volume measuring eight parsecs by 40 parsecs by 36 parsecs and comprised of the "spokes" of sixteen Districts.  There are four Spokes in the Colonies Sphere, identified as Spokes 1 through 4, moving from spinward to trailwardward.

Districts shown in grey shading have yet to be charted by the Commonwealth Scout Service, the Discovery Service of the Abrahamic Synod or the Vanguard of the Empire of Atzlán.


Disc 1

Ring

Spoke 1

Spoke 2

Spoke 3

Spoke 4

1

Atlantis

Ehime

Auriga

Susanowo

2

Hyrcania

Ursa Major

Capella

Cassiopeia

3

Quetzalcoatl

Boötes

Cepheus

Shang-ti

4

Sarasvati

Mercia

Hibakusa

Chalputepec


Disc 2

Ring

Spoke 1

Spoke 2

Spoke 3

Spoke 4

1

Ōkuninushi

Castor

Brahma

Lorelei

2

Denebola

Pollux

Gaea

Pegasus

3

Arcturus

Jagannath

Vega

Hejaz

4

Isauria

Nyanza

Aquila

Zarathustra


Disc 3

Ring

Spoke 1

Spoke 2

Spoke 3

Spoke 4

1

Muntu

Santa Fe

Orion

Ptah

2

Alpha Crucis

Procyon

Sirius

Theridia

3

Kiangsi

Siddhārtha

Fomalhaut

Vishnu

4

Gilgamesh

Wanganui

Ourora

Cinnabar


Disc 4

Ring

Spoke 1

Spoke 2

Spoke 3

Spoke 4

1

Siva

Oceania

Pacifica

Jaxartes

2

Tanagra

Draconis

Alpha Hydri

Phoenix

3

Theta Centauri

Southern Triangle

Tunghai

Amaterasu

4

Missisquoi

Masada

Xanadu

Europa



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