Documentation / @interstellar-tools/constants / GALAXIES

Variable: GALAXIES

const GALAXIES: GalaxiesType;

Defined in: bodies/galaxies.ts:28

Represents a collection of galaxies within the space visualization.

INFO

• Units: diameter and distance in light-years (ly); black hole radius, x, y in astronomical units (au).

• Black hole mass is in solar masses ($M_{\odot }$).

• Values are mainly for visualization; not all are observationally exact.

• Sources: compiled from public references, mainly NASA, NASA JPL, ESA and Wikipedia. See data sources.

Full list of galaxies in the dataset

This list is not an exhaustive list, and addition/changes will be added over time.

id	name	type	diameter	distance	blackHole.name	blackHole.mass	blackHole.radius	blackHole.x	blackHole.y
milky-way	Milky Way	Barred Spiral	105700 ly	0 ly	Sagittarius A*	4154000	0.08 au	0 au	0 au
andromeda	Andromeda	Barred Spiral	220000 ly	2537002 ly	Andromeda Central Black Hole	1100000	5 au	0 au	1604424 au
triangulum	Triangulum	Spiral	60000 ly	3000003 ly	Triangulum Central Black Hole	1500000	0.1 au	0 au	1897230 au

Example item in dataset:

{
  id: 'milky-way',
  name: 'Milky Way',
  type: 'Barred Spiral',
  /** Diameter of the galaxy in light-years. */
  diameter: { value: 105700, unit: 'ly' },
  /** Distance from the reference point (Milky Way itself). */
  distance: { value: 0, unit: 'ly' },
  /** Supermassive black hole at the center. */
  blackHole: {
    name: 'Sagittarius A*',
    /** Mass of the black hole in Solar Masses ($ M_\odot $). */
    mass: 4.154e6,
    /** Schwarzschild radius (approximate) in AU. */
    radius: { value: 0.08, unit: 'au' },
    /** Positional reference within the galaxy in AU. */
    x: { value: 0, unit: 'au' },
    y: { value: 0, unit: 'au' }
  }
},

See

GalaxiesType.

Example

console.log(GALAXIES[0].name); // "Milky Way"