Silver Age Beyond
Milky Way Galaxy
Size: The Milky Way is about 1,000,000,000,000,000,000 km (about 100,000 light years) across.
Navigation along the galactic axis is described by the following:
- Galactic North: The ‘Top’ side of the galaxy, as seen from the edge of the disk.
- Galactic South: The ‘Bottom’ side of the galaxy, as seen from the edge of the disk.
- Coreward: Travelling toward the galactic core. The opposite direction from Rimward.
- Rimward: Travelling toward the outer rim of the galaxy, away from the galactic core.
- Spinward: Travelling in the same direction of the spin of the galaxy. (counter clockwise)
- Trailing: Traveling in the opposite direction from the spin of the galaxy, toward the trailing edges of the spiral arms.
Navigation of the galaxy from the Sol starting point is further broken down into quadrants, based on it’s position from Earth.
That is explained in mor detail here.
- Galactic Quadrants
- Galactic Navigation
- Core: The center of the galaxy, characterized by violent supernovae, supermassive clusters of black holes and high radiation, the galactic core is considered uninhabitable. The Milky Way’s core is elongated, like a bar, so is often simply called the galactic bar.
- Rim: The edge of the galaxy, representing all edges, where the galaxy ends and the cold darkness of intergalactic space begins.
- Waves: The galaxy emanates in waves from the core, so depending on where you are on the galactic plane, it’s possible to be in, near or between one of the waves of matter and energy scrolling outward.
- Arms: The majority of stars and planets are within arms stretching out from the galactic core to the rim in a spiral pattern.
- Sectors: Each Sector inside a Galactic Arm is broken down into 80 individual grid units of space. This is a named area. The 80 grid unit is called a Sector, and each grid within it is called a Sub Sector, or by it’s designated number. Objects of interest are grouped into the grid of that space. This includes the following:
- Stars: There are approximately 100-400 billion stars.
- Solar Systems: There are approximately 10-100 billion solar systems containing approximately 11-40 billion habitable planets as well as everything from constructed objects to other oddities. Too many to number.
Finding your Galactic Address:
Here are some example galactic addresses:
- Sagittarius Arm, (Orion Spur), Sector 0000, Sol System, Sol 3 (Earth), North Hemisphere, (Followed by Lat/Long or city coordinates).
- Both cost energy to power Jump Drives or Hyperflight engines. Jump engine use costs a standard amount per jump, while Hyperflight costs more energy the faster Starships attempt to go.
- Safe travel differs depending on how and where travel occurs. Atmospheric flight is different than spaceflight, and travelling inside a Solar System is handled slightly differently than travelling between Sectors. It’s generally not safe or viable to use Hyperflight or jump gates inside an atmosphere, or use Hyperflight above 5 inside the Termination Shock of a Solar System, for example.
There’s a lot more information related to this in the various links above.