🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.5

Radius: 13.7

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.5 AU - 0.76 AU

Year: 345 Days

Day: 14.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 67,151,739 km

• M1: 171,140 km (0.119 R)
• M2: 642,972 km (0.1 R)
• M3: 1,073,814 km (0.033 R)
• M4: 1,765,105 km (0.105 R)
• M5: 2,491,852 km (0.1 R)
• M6: 2,980,588 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.8

Radius: 9.8

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.64 AU - 0.82 AU

Year: 431 Days

Day: 12.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 87 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,151,739 km

• M1: 121,922 km (0.065 R)
• M2: 445,951 km (0.1 R)
• M3: 791,223 km (0.117 R)
• M4: 1,162,824 km (0.08 R)
• M5: 1,495,380 km (0.106 R)
• M6: 1,840,802 km (0.115 R)
• M7: 2,376,362 km (0.097 R)
• M8: 2,772,946 km (0.085 R)
• M9: 3,267,517 km (0.072 R)
• M10: 4,042,882 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.3

Radius: 12.2

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.94 AU - 1.2 AU

Year: 764 Days

Day: 8.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,151,739 km

• M1: 151,692 km (0.115 R)
• M2: 548,725 km (0.089 R)
• M3: 1,134,101 km (0.102 R)
• M4: 1,570,478 km (0.113 R)
• M5: 1,969,157 km (0.049 R)
• M6: 2,740,783 km (0.086 R)
• M7: 3,377,621 km (0.106 R)
• M8: 3,813,848 km (0.111 R)
• M9: 4,408,649 km (0.104 R)
• M10: 5,675,145 km (0.09 R)
• M11: 6,753,895 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.8

Radius: 14.5

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.43 AU - 1.67 AU

Year: 1332 Days

Day: 14 Hours

Environment

Temp: -196 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,151,739 km

• M1: 180,864 km (0.091 R)
• M2: 781,649 km (0.116 R)
• M3: 1,583,793 km (0.075 R)
• M4: 2,142,541 km (0.049 R)
• M5: 4,219,707 km (0.112 R)
• M6: 5,332,267 km (0.115 R)
• M7: 6,677,600 km (0.089 R)
• M8: 8,718,863 km (0.082 R)
• M9: 9,883,034 km (0.064 R)
• M10: 10,334,071 km (0.035 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.3

Radius: 9.8

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.26 AU - 1.88 AU

Year: 1358 Days

Day: 6 Hours

Environment

Temp: -188 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,151,739 km

• M1: 121,922 km (0.057 R)
• M2: 437,873 km (0.059 R)
• M3: 1,054,515 km (0.116 R)
• M4: 1,364,033 km (0.115 R)
• M5: 1,799,064 km (0.085 R)
• M6: 2,121,896 km (0.046 R)
• M7: 2,625,443 km (0.096 R)
• M8: 3,193,316 km (0.096 R)
• M9: 3,656,172 km (0.106 R)
• M10: 4,146,853 km (0.059 R)
• M11: 4,574,104 km (0.117 R)
• M12: 4,881,229 km (0.062 R)
• M13: 5,597,803 km (0.088 R)
• M14: 6,539,521 km (0.116 R)
• M15: 7,435,014 km (0.11 R)
• M16: 7,759,342 km (0.042 R)
• M17: 8,330,058 km (0.078 R)
• M18: 8,928,450 km (0.115 R)
• M19: 9,849,673 km (0.047 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 308.3

Radius: 8

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 7.34 AU - 9.78 AU

Year: 17287 Days

Day: 17.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 68.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 67,151,739 km

• M1: 100,380 km (0.087 R)
• M2: 349,909 km (0.084 R)
• M3: 820,395 km (0.089 R)
• M4: 1,400,834 km (0.043 R)
• M5: 1,980,227 km (0.071 R)
• M6: 2,584,004 km (0.063 R)
• M7: 3,581,822 km (0.117 R)
• M8: 5,617,550 km (0.12 R)
• M9: 6,466,069 km (0.114 R)
• M10: 6,860,558 km (0.081 R)
• M11: 8,601,429 km (0.076 R)
• M12: 10,297,270 km (0.079 R)
• M13: 12,931,090 km (0.119 R)
• M14: 13,878,793 km (0.108 R)
• M15: 14,535,827 km (0.027 R)
• M16: 15,144,840 km (0.108 R)
• M17: 17,599,741 km (0.112 R)
• M18: 25,940,121 km (0.049 R)
• M19: 38,215,075 km (0.102 R)
• M20: 51,965,663 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 421.3

Radius: 3.5

Gravity: 34.39 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 8.56 AU - 11.02 AU

Year: 21144 Days

Day: 17.3 Hours

Environment

Temp: -244 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 67,151,739 km

• M1: 43,832 km (0.112 R)
• M2: 184,305 km (0.062 R)
• M3: 318,344 km (0.099 R)
• M4: 787,782 km (0.113 R)
• M5: 2,242,472 km (0.092 R)
• M6: 2,368,583 km (0.09 R)
• M7: 3,148,437 km (0.119 R)
• M8: 3,933,227 km (0.115 R)
• M9: 4,274,310 km (0.057 R)
• M10: 5,917,344 km (0.059 R)
• M11: 9,050,671 km (0.053 R)
• M12: 9,425,115 km (0.118 R)
• M13: 13,547,733 km (0.084 R)
• M14: 13,686,410 km (0.053 R)
• M15: 16,270,564 km (0.091 R)
• M16: 17,635,495 km (0.099 R)
• M17: 18,729,504 km (0.073 R)
• M18: 19,249,356 km (0.094 R)
• M19: 22,378,046 km (0.112 R)
• M20: 23,259,477 km (0.115 R)
• M21: 23,558,373 km (0.063 R)
• M22: 24,883,362 km (0.116 R)
• M23: 26,257,269 km (0.116 R)
• M24: 27,347,837 km (0.094 R)
• M25: 27,680,692 km (0.118 R)
• M26: 28,016,390 km (0.097 R)
• M27: 30,680,579 km (0.112 R)
• M28: 33,635,585 km (0.11 R)
• M29: 35,312,727 km (0.054 R)
• M30: 42,728,144 km (0.096 R)
• M31: 42,877,143 km (0.118 R)
• M32: 44,387,035 km (0.096 R)
• M33: 46,559,794 km (0.116 R)
• M34: 53,674,968 km (0.096 R)
• M35: 62,819,287 km (0.102 R)
• M36: 66,150,084 km (0.06 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: 315 - 16,501 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit