🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974

Radius: 14

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.68 AU - 0.72 AU

Year: 391 Days

Day: 10.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,878,411 km

• M1: 174,132 km (0.109 R)
• M2: 698,323 km (0.092 R)
• M3: 1,134,251 km (0.1 R)
• M4: 1,799,812 km (0.07 R)
• M5: 2,341,655 km (0.079 R)
• M6: 2,821,266 km (0.114 R)
• M7: 3,560,280 km (0.111 R)
• M8: 4,241,698 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.5

Radius: 14

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.62 AU - 0.82 AU

Year: 407 Days

Day: 5.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 27,878,411 km

• M1: 174,431 km (0.09 R)
• M2: 734,376 km (0.046 R)
• M3: 1,441,675 km (0.079 R)
• M4: 2,005,509 km (0.086 R)
• M5: 3,338,725 km (0.094 R)
• M6: 3,817,588 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 575

Radius: 12

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.69 AU - 0.77 AU

Year: 416 Days

Day: 7 Hours

Environment

Temp: -150 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,878,411 km

• M1: 150,047 km (0.111 R)
• M2: 540,348 km (0.1 R)
• M3: 921,822 km (0.068 R)
• M4: 1,572,274 km (0.08 R)
• M5: 2,177,547 km (0.055 R)
• M6: 2,741,979 km (0.037 R)
• M7: 3,483,386 km (0.058 R)
• M8: 4,153,435 km (0.087 R)
• M9: 4,604,024 km (0.115 R)
• M10: 5,193,888 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.4

Radius: 12.3

Gravity: 4.76 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.96 AU - 0.98 AU

Year: 637 Days

Day: 13.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 27,878,411 km

• M1: 153,039 km (0.105 R)
• M2: 750,233 km (0.1 R)
• M3: 1,293,722 km (0.068 R)
• M4: 1,882,240 km (0.062 R)
• M5: 2,293,934 km (0.112 R)
• M6: 2,688,573 km (0.114 R)
• M7: 3,080,370 km (0.093 R)
• M8: 3,497,449 km (0.105 R)
• M9: 5,398,239 km (0.117 R)
• M10: 5,837,608 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.7

Radius: 8.5

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.05 AU - 1.27 AU

Year: 833 Days

Day: 9.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,878,411 km

• M1: 105,766 km (0.051 R)
• M2: 380,577 km (0.113 R)
• M3: 686,056 km (0.052 R)
• M4: 957,277 km (0.086 R)
• M5: 1,321,398 km (0.087 R)
• M6: 1,768,845 km (0.032 R)
• M7: 2,046,499 km (0.067 R)
• M8: 2,472,554 km (0.105 R)
• M9: 3,014,247 km (0.114 R)
• M10: 3,766,426 km (0.028 R)
• M11: 4,143,412 km (0.115 R)
• M12: 4,514,714 km (0.108 R)
• M13: 5,022,449 km (0.107 R)
• M14: 5,307,284 km (0.107 R)
• M15: 6,114,065 km (0.049 R)
• M16: 6,655,908 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 496.6

Radius: 9.3

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.53 AU - 3.55 AU

Year: 3535 Days

Day: 5 Hours

Environment

Temp: -216 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,878,411 km

• M1: 117,434 km (0.111 R)
• M2: 616,493 km (0.08 R)
• M3: 957,127 km (0.082 R)
• M4: 1,262,905 km (0.107 R)
• M5: 1,559,109 km (0.118 R)
• M6: 2,015,083 km (0.12 R)
• M7: 2,454,003 km (0.084 R)
• M8: 3,486,977 km (0.092 R)
• M9: 4,856,844 km (0.09 R)
• M10: 6,187,518 km (0.105 R)
• M11: 7,617,972 km (0.12 R)
• M12: 8,651,694 km (0.12 R)
• M13: 11,201,589 km (0.117 R)
• M14: 12,181,755 km (0.114 R)
• M15: 14,069,081 km (0.105 R)
• M16: 14,409,865 km (0.046 R)
• M17: 14,806,000 km (0.038 R)
• M18: 15,723,933 km (0.054 R)
• M19: 17,448,647 km (0.11 R)
• M20: 20,953,276 km (0.027 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.7

Radius: 12.8

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 3.04 AU - 4.46 AU

Year: 4843 Days

Day: 14.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 27,878,411 km

• M1: 159,172 km (0.072 R)
• M2: 561,890 km (0.069 R)
• M3: 1,067,530 km (0.117 R)
• M4: 1,474,137 km (0.112 R)
• M5: 1,933,253 km (0.106 R)
• M6: 2,425,131 km (0.116 R)
• M7: 3,037,136 km (0.081 R)
• M8: 3,460,348 km (0.1 R)
• M9: 4,332,803 km (0.105 R)
• M10: 4,846,821 km (0.091 R)
• M11: 5,319,700 km (0.099 R)
• M12: 6,297,472 km (0.062 R)
• M13: 7,771,609 km (0.059 R)
• M14: 8,421,612 km (0.092 R)
• M15: 10,635,212 km (0.103 R)
• M16: 11,346,251 km (0.094 R)
• M17: 11,759,889 km (0.073 R)
• M18: 13,982,165 km (0.12 R)
• M19: 15,220,087 km (0.099 R)
• M20: 18,286,844 km (0.103 R)
• M21: 19,503,374 km (0.072 R)
• M22: 22,527,345 km (0.073 R)
• M23: 24,914,029 km (0.036 R)
• M24: 27,795,284 km (0.112 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 303 - 10,598 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit