🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.3

Radius: 8.4

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.51 AU - 0.55 AU

Year: 257 Days

Day: 11.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,006,141 km

• M1: 104,419 km (0.082 R)
• M2: 406,009 km (0.05 R)
• M3: 948,750 km (0.081 R)
• M4: 1,233,135 km (0.079 R)
• M5: 1,640,041 km (0.101 R)
• M6: 2,098,559 km (0.085 R)
• M7: 3,440,601 km (0.027 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.2

Radius: 14.6

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.76 AU - 1.02 AU

Year: 560 Days

Day: 5.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 40,006,141 km

• M1: 181,911 km (0.077 R)
• M2: 666,907 km (0.078 R)
• M3: 1,168,210 km (0.111 R)
• M4: 1,755,531 km (0.085 R)
• M5: 2,277,328 km (0.101 R)
• M6: 3,393,179 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.8

Radius: 9.5

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.74 AU - 1.12 AU

Year: 598 Days

Day: 14.3 Hours

Environment

Temp: -166 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,006,141 km

• M1: 118,182 km (0.099 R)
• M2: 431,590 km (0.105 R)
• M3: 842,086 km (0.091 R)
• M4: 1,593,517 km (0.11 R)
• M5: 2,006,706 km (0.112 R)
• M6: 2,609,286 km (0.119 R)
• M7: 2,927,331 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.7

Radius: 15

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.32 AU - 1.7 AU

Year: 1237 Days

Day: 12 Hours

Environment

Temp: -200 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 40,006,141 km

• M1: 186,549 km (0.105 R)
• M2: 732,730 km (0.037 R)
• M3: 1,457,083 km (0.081 R)
• M4: 3,051,497 km (0.103 R)
• M5: 4,044,977 km (0.093 R)
• M6: 4,652,494 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.1

Radius: 14.6

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.42 AU - 2.18 AU

Year: 1610 Days

Day: 8.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 165.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,006,141 km

• M1: 181,911 km (0.071 R)
• M2: 771,177 km (0.114 R)
• M3: 1,399,937 km (0.086 R)
• M4: 1,977,235 km (0.113 R)
• M5: 2,686,179 km (0.075 R)
• M6: 3,915,275 km (0.105 R)
• M7: 4,387,406 km (0.111 R)
• M8: 5,514,178 km (0.106 R)
• M9: 6,254,089 km (0.114 R)
• M10: 6,877,463 km (0.04 R)
• M11: 8,846,919 km (0.046 R)
• M12: 9,313,814 km (0.107 R)
• M13: 12,743,495 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.6

Radius: 13.3

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 4.34 AU - 4.7 AU

Year: 6408 Days

Day: 12.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 40,006,141 km

• M1: 165,455 km (0.116 R)
• M2: 592,707 km (0.053 R)
• M3: 1,026,690 km (0.072 R)
• M4: 1,508,695 km (0.081 R)
• M5: 2,051,436 km (0.06 R)
• M6: 3,174,168 km (0.034 R)
• M7: 3,697,611 km (0.116 R)
• M8: 5,717,182 km (0.064 R)
• M9: 7,091,089 km (0.107 R)
• M10: 7,913,877 km (0.119 R)
• M11: 10,767,756 km (0.119 R)
• M12: 12,744,691 km (0.091 R)
• M13: 13,343,532 km (0.079 R)
• M14: 14,018,368 km (0.085 R)
• M15: 15,133,021 km (0.059 R)
• M16: 16,433,027 km (0.051 R)
• M17: 17,806,036 km (0.106 R)
• M18: 19,467,470 km (0.051 R)
• M19: 20,189,429 km (0.11 R)
• M20: 20,705,392 km (0.087 R)
• M21: 22,072,567 km (0.048 R)
• M22: 23,661,446 km (0.088 R)
• M23: 24,235,154 km (0.081 R)
• M24: 26,012,227 km (0.089 R)
• M25: 32,563,417 km (0.059 R)
• M26: 35,679,990 km (0.087 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 188

Radius: 4.5

Gravity: 9.28 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 7.71 AU - 7.91 AU

Year: 14555 Days

Day: 18.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 40,006,141 km

• M1: 59,540 km (0.053 R)
• M2: 204,799 km (0.102 R)
• M3: 400,174 km (0.092 R)
• M4: 1,584,989 km (0.115 R)
• M5: 2,179,641 km (0.082 R)
• M6: 3,412,926 km (0.104 R)
• M7: 5,201,069 km (0.114 R)
• M8: 6,311,833 km (0.094 R)
• M9: 7,611,240 km (0.042 R)
• M10: 8,471,279 km (0.106 R)
• M11: 11,282,372 km (0.111 R)
• M12: 14,114,260 km (0.079 R)
• M13: 14,475,688 km (0.091 R)
• M14: 14,843,400 km (0.12 R)
• M15: 15,983,635 km (0.066 R)
• M16: 16,775,456 km (0.029 R)
• M17: 22,488,599 km (0.053 R)
• M18: 24,074,486 km (0.037 R)
• M19: 24,677,066 km (0.077 R)
• M20: 29,082,724 km (0.107 R)
• M21: 35,180,931 km (0.045 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: 478 - 17,493 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit