Sci-Fi - System Core - Chartopia

Sci-Fi - System Core (d100)

You can find a collection including all of my public charts here: https://chartopia.d12dev.com/collection/2569/

d100	Result
1-25	Compact Core - Stellar Remnant. A compact core is the endpoint of a stellar lifespan and the most common in the universe. Most compact cores are brown or white dwarfs, cold remnants of an ancient star. Though rare, it’s possible for the core to gather enough mass to reignite and form another stellar body. These cores differ principally by their mass and tend to have a small volume due to their very high density. Systems around compact cores have few worlds, most of which are chaotic. Due to the massive destruction caused when a stellar body becomes a compact core, it is unusual for these systems to have habitable worlds. Choose or roll to determine the type of compact core: Roll on "Compact Core"
26-62	Main Sequence - Common Star. Main sequence stars are the common system cores. They are the most likely to have habitable zones with worlds able to support complex life. Spectral class categorizes main sequence stars as an objective measure of the star’s color, temperature, displacement, and radius. Most of the time, use spectral class as short hand when referring to the star. The most massive main sequence stars are sometimes known as subgiants, which despite their size are far more likely to host life-bearing planets than their even more massive giant cousins. The greater the size, the generally lower the life span and richer the metal deposits common to their orbital bodies. Choose or roll to determine the appropriate spectral class for the main sequence star: Roll on "Main Sequence"
63-83	Giant - Massive Star. Giant stars are massive stellar bodies that have had all the hydrogen available for fusion at its core depleted. They are common and have substantially greater displacement, radius, and stellar magnitude than a main sequence star of the same spectral class, but with a similar surface temperature. Giants include massive hyper giants, super giants, bright giants, and the common giant. The larger the giant, the less common and shorter lived the star is. Choose or roll to determine the appropriate spectral class for the giant star: Roll on "Giant"
84-94	Multiple Stars - Multiple stellar bodies. Some systems may have multiple stars at its core. If these stars are in close proximity, they will gravitationally distort one another’s outer stellar atmospheres. If close enough to one another, stars may even exchange mass, linking them physically and spectacularly. Multiple stars often form a hierarchical arrangement. Choose or roll to determine the type of stars in your star system: Roll on "Multiple Stars"
95-100	Nebula - Stellar cloud of dust. These vast stellar clouds of dust and ionized gas are often formed from a supernova. The outer layers of a former star are expelled while the exposed hot, luminous core of the star lingers at the core of the system. The nebula’s core emits ultraviolet radiation to ionize the rest of the nebula, energizing and illuminating the gas and dust with vibrant colors. Seldom do orbital bodies survive the supernova that created the nebula, but a new system of orbital bodies usually develops from the fragments of the old system. Nebulae will also capture rogue bodies or will sometimes recapture intact bodies expelled by the supernova. Orbital bodies within nebulae are shrouded in dust and gas and unlikely to be naturally habitable. The nebula fills the entire system. Choose or roll to determine the color and corresponding type of nebula: Roll on "Nebula"

Subcharts

Compact Core (d100)

d100	Result
1-11	Black Hole: A spacetime knot formed by high density matter with such strong gravitational effects that no matter or energy may escape from its event horizon. On sensors, they are detectable by their lack of energy emission and the extreme spacetime curve.
12-24	Neutron Star: The collapsed core of a Class B or O main sequence or giant star. These extremely dense stars are the result of supernova explosions that compress stars to the point that they are entirely composed of neutrons. The most massive will continue collapsing to form a black hole.
25-37	Pulsar: A highly magnetized, rotating neutron star or white dwarf. They emit a beam of electromagnetic radiation or cosmic rays, which may be dangerous to those that don’t calculate the emission rate.
38-63	White Dwarf: A degenerated stellar remnant with faint luminosity from its stored thermal energy. No fusion takes place in the star, but a large influx of mass may restart the star. White dwarfs are by far the most common, making up 97% of all stars in the galaxy.
64-94	Brown Dwarf: Low mass compact cores that range between the heaviest planetar and the lightest main sequence stars. They aren’t massive enough to sustain nuclear fusion and instead fuse deuterium or lithium.
95-100	Exotic Star: A bizarre compact star composed of something other than electrons, protons, neutrons, or muons. These stars are composed of quarks, preons, strange matter, dark matter, or other more exotic materials.

Main Sequence (d100)

d100	Result
1-6	Spectral Class O: A bright blue star is the most massive of these stellar cores, with an average radius of 10,400,000 km, displacing 120,000 Yt of spacetime. They have an extreme surface temperature ranging between 25,000 and 50,000 Kelvin.
7-13	Spectral Class B: These blue stars have an average radius of 4,900,000 km and displace 36,000 Yt of spacetime. At half the size of Class O star, they still emit an extreme surface temperature ranging from 11,000 to 25,000 Kelvin.
14-30	Spectral Class A: These stars emit cyan light and between 7,500 and 11,000 Kelvin surface temperature. They have an average radius of 1,700,000 km and displace 6,400 Yt of spacetime.
31-45	Spectral Class F: The average star, the Class F is white, with 6,000 to 7,500 Kelvin surface temperature. They have an average radius of 900,000 km and displace 3,400 Yt of spacetime.
46-60	Spectral Class G: Class G yellow stars are utterly ordinary. They displace 2,200 Yt with a radius of 770,000 km. They have a surface temperature between 5,000 and 6,000 Kelvin.
61-80	Spectral Class K: A small star, orange stars produce a relatively small about of surface temperature, between 3,500 and 5,000 Kelvin. They only displace 1,600 Yt and have an average radius of 630,000 km.
81-100	Spectral Class M: The smallest stars, Class M stars are red. They only have a surface temperature between 2,500 and 3,500 Kelvin and have an average radius of 280,000 km. They displace a mere 600 Yt of spacetime.

Giant (d100)

d100	Result
1-4	Spectral Class O: Bright blue are the most massive individual giants. They have an average radius of 312,000,000 km and displace 3,600,000 Yt of spacetime.
5-8	Spectral Class B: Blue giants are half the size of Class O. They displace an average of 1,100,000 Yt with a radius of 147,000,000 km.
9-11	Spectral Class A: Cyan are above-average giants. They have an average radius of 43,000,000 km and displace 160,000 Yt of spacetime.
12-15	Spectral Class F: White giants are the average giant stars. They have an average radius of 18,000,000 km and displace 68,000 Yt of spacetime.
16-40	Spectral Class G: Lower than average, Class G yellow giants are pretty ordinary. They displace 44,000 Yt with a radius of 15,400,000 km.
41-70	Spectral Class K: A smaller giant, a Class K orange giant displaces an average of 24,000 Yt and has an average radius of 9,500,000 km.
71-100	Spectral Class M: Red giants are the smallest of the giants, nearly as small as a main sequence. They have an average radius of 2,800,000 km. They displace a mere 6,000 Yt of spacetime.

Multiple Stars (d100)

d100	Result
1-10	Binary main sequence stars Roll on "Main Sequence"
11-20	Double giant stars Roll on "Giant"
21-30	Giant and main sequence pair Giant: Roll on "Giant" Main sequence: Roll on "Main Sequence"
31-37	Main sequence star orbiting a compact core Main sequence: Roll on "Main Sequence" Compact core: Roll on "Compact Core"
38-44	Giant star orbiting a compact core Giant: Roll on "Giant" Compact core: Roll on "Compact Core"
45-54	Ternary main sequence stars Roll on "Main Sequence"
55-64	Ternary giant stars Roll on "Giant"
65-71	Binary main sequence stars orbiting a compact core Main sequence stars: Roll on "Main Sequence" Compact core: Roll on "Compact Core"
72-78	Double giant stars orbiting a compact core Giants: Roll on "Giant" Compact core: Roll on "Compact Core"
79-85	Giant and main sequence pair orbiting a compact core Giant: Roll on "Giant" Main sequence: Roll on "Main Sequence" Compact core: Roll on "Compact Core"
86-93	Cluster of assorted stars
94-100	Cluster of assorted stars orbiting a compact core Roll on "Compact Core"

Nebula (d100)

d100	Color	Type
1-16	Red	Emissive
17-32	Blue	Reflective
33-48	Green	Shell
49-64	Yellow	Nova remnant
65-80	Purple	Heavy dust
81-100	Orange	Blend