🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.7

Radius: 14.6

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.4 AU - 0.62 AU

Year: 243 Days

Day: 7.2 Hours

Environment

Temp: -141 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 77,865,399 km

• M1: 181,612 km (0.118 R)
• M2: 871,408 km (0.114 R)
• M3: 1,692,102 km (0.084 R)
• M4: 2,162,138 km (0.084 R)
• M5: 2,965,479 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.3

Radius: 12.6

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.99 AU - 0.99 AU

Year: 657 Days

Day: 8 Hours

Environment

Temp: -175 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 77,865,399 km

• M1: 157,676 km (0.061 R)
• M2: 738,265 km (0.109 R)
• M3: 1,428,360 km (0.072 R)
• M4: 3,491,913 km (0.097 R)
• M5: 4,145,357 km (0.054 R)
• M6: 4,643,368 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.7

Radius: 10

Gravity: 6.18 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.99 AU - 1.61 AU

Year: 988 Days

Day: 15 Hours

Environment

Temp: -181 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 77,865,399 km

• M1: 124,615 km (0.115 R)
• M2: 469,289 km (0.06 R)
• M3: 798,105 km (0.051 R)
• M4: 1,405,921 km (0.112 R)
• M5: 1,733,091 km (0.056 R)
• M6: 2,132,069 km (0.091 R)
• M7: 2,533,889 km (0.103 R)
• M8: 2,871,382 km (0.048 R)
• M9: 3,335,733 km (0.099 R)
• M10: 3,880,419 km (0.074 R)
• M11: 4,231,825 km (0.076 R)
• M12: 4,621,976 km (0.097 R)
• M13: 5,036,063 km (0.096 R)
• M14: 5,573,568 km (0.102 R)
• M15: 6,191,407 km (0.078 R)
• M16: 6,583,653 km (0.099 R)
• M17: 9,494,977 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402.3

Radius: 8

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.15 AU - 1.67 AU

Year: 1116 Days

Day: 10.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 77,865,399 km

• M1: 99,483 km (0.039 R)
• M2: 398,379 km (0.087 R)
• M3: 662,719 km (0.108 R)
• M4: 1,250,489 km (0.079 R)
• M5: 1,933,552 km (0.095 R)
• M6: 2,581,760 km (0.042 R)
• M7: 2,881,255 km (0.056 R)
• M8: 3,565,067 km (0.054 R)
• M9: 4,270,570 km (0.051 R)
• M10: 5,213,635 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.2

Radius: 14.8

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.66 AU - 1.92 AU

Year: 1597 Days

Day: 8.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 77,865,399 km

• M1: 184,305 km (0.064 R)
• M2: 727,195 km (0.094 R)
• M3: 1,230,143 km (0.114 R)
• M4: 1,719,478 km (0.101 R)
• M5: 2,598,216 km (0.102 R)
• M6: 3,721,097 km (0.099 R)
• M7: 4,218,510 km (0.116 R)
• M8: 5,264,349 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 27.2

Radius: 8.1

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.61 AU - 2.35 AU

Year: 1858 Days

Day: 11.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 77,865,399 km

• M1: 160,967 km (0.082 R)
• M2: 487,689 km (0.088 R)
• M3: 856,597 km (0.079 R)
• M4: 1,195,586 km (0.107 R)
• M5: 1,772,436 km (0.066 R)
• M6: 2,304,555 km (0.08 R)
• M7: 2,598,814 km (0.084 R)
• M8: 3,365,653 km (0.117 R)
• M9: 5,062,542 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.1

Radius: 13.4

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.69 AU - 4.17 AU

Year: 4236 Days

Day: 7.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 77,865,399 km

• M1: 166,652 km (0.104 R)
• M2: 628,909 km (0.115 R)
• M3: 1,215,483 km (0.117 R)
• M4: 1,819,260 km (0.082 R)
• M5: 2,981,037 km (0.117 R)
• M6: 3,846,161 km (0.092 R)
• M7: 6,524,861 km (0.064 R)
• M8: 7,705,338 km (0.048 R)
• M9: 8,688,794 km (0.118 R)
• M10: 9,331,915 km (0.116 R)
• M11: 12,906,257 km (0.065 R)
• M12: 14,338,806 km (0.084 R)
• M13: 15,238,039 km (0.045 R)
• M14: 17,677,681 km (0.1 R)
• M15: 18,435,843 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 991.4

Radius: 3.7

Gravity: 72.42 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 6.99 AU - 9.07 AU

Year: 15174 Days

Day: 18.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 77,865,399 km

• M1: 58,642 km (0.119 R)
• M2: 218,114 km (0.113 R)
• M3: 777,161 km (0.072 R)
• M4: 1,232,387 km (0.088 R)
• M5: 4,323,079 km (0.048 R)
• M6: 7,239,939 km (0.113 R)
• M7: 8,619,381 km (0.068 R)
• M8: 10,164,727 km (0.051 R)
• M9: 10,880,104 km (0.058 R)
• M10: 12,678,719 km (0.101 R)
• M11: 13,436,582 km (0.111 R)
• M12: 13,719,471 km (0.1 R)
• M13: 15,041,767 km (0.095 R)
• M14: 16,933,881 km (0.104 R)
• M15: 18,627,029 km (0.076 R)
• M16: 20,060,326 km (0.106 R)
• M17: 22,742,616 km (0.069 R)
• M18: 25,117,333 km (0.101 R)
• M19: 27,312,083 km (0.087 R)
• M20: 32,710,921 km (0.098 R)
• M21: 33,351,349 km (0.069 R)
• M22: 34,393,448 km (0.119 R)
• M23: 34,657,339 km (0.118 R)
• M24: 35,726,365 km (0.04 R)
• M25: 36,268,957 km (0.118 R)
• M26: 37,370,745 km (0.088 R)
• M27: 42,909,905 km (0.056 R)
• M28: 47,814,771 km (0.113 R)
• M29: 49,138,413 km (0.054 R)
• M30: 49,473,213 km (0.089 R)
• M31: 53,080,017 km (0.103 R)
• M32: 54,141,863 km (0.107 R)
• M33: 56,674,405 km (0.105 R)
• M34: 58,156,471 km (0.11 R)
• M35: 60,427,517 km (0.101 R)
• M36: 61,004,516 km (0.073 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509.9

Radius: 6.2

Gravity: 13.26 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 10.18 AU - 11.62 AU

Year: 23998 Days

Day: 23.2 Hours

Environment

Temp: -246 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 77,865,399 km

• M1: 77,043 km (0.09 R)
• M2: 378,183 km (0.097 R)
• M3: 690,095 km (0.072 R)
• M4: 1,073,814 km (0.076 R)
• M5: 1,591,273 km (0.072 R)
• M6: 1,803,103 km (0.053 R)
• M7: 2,349,883 km (0.114 R)
• M8: 2,797,031 km (0.103 R)
• M9: 3,706,437 km (0.062 R)
• M10: 4,017,301 km (0.094 R)
• M11: 4,620,779 km (0.062 R)
• M12: 5,168,457 km (0.115 R)
• M13: 6,885,840 km (0.119 R)
• M14: 9,172,893 km (0.106 R)
• M15: 11,988,923 km (0.058 R)
• M16: 14,407,322 km (0.078 R)
• M17: 16,795,503 km (0.05 R)
• M18: 21,836,502 km (0.095 R)
• M19: 27,218,435 km (0.114 R)
• M20: 35,867,436 km (0.106 R)
• M21: 38,575,606 km (0.067 R)
• M22: 41,111,589 km (0.117 R)
• M23: 45,526,970 km (0.119 R)
• M24: 46,844,329 km (0.056 R)
• M25: 47,512,433 km (0.104 R)
• M26: 51,124,474 km (0.069 R)
• M27: 51,832,670 km (0.109 R)
• M28: 55,844,885 km (0.084 R)
• M29: 65,723,281 km (0.068 R)
• M30: 68,042,497 km (0.099 R)
• M31: 71,512,420 km (0.092 R)
• M32: 71,954,332 km (0.111 R)
• M33: 74,190,970 km (0.094 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 307 - 18,595 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit