🌌 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 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.52 AU - 0.54 AU

Year: 253 Days

Day: 39 Hours

Environment

Temp: -127 °C

Axial Tilt: 12.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345.2

Radius: 8.8

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.73 AU - 0.91 AU

Year: 487 Days

Day: 13.3 Hours

Environment

Temp: -144 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,769,957 km

• M1: 109,506 km (0.108 R)
• M2: 416,181 km (0.079 R)
• M3: 884,572 km (0.065 R)
• M4: 1,319,004 km (0.052 R)
• M5: 1,831,676 km (0.118 R)
• M6: 2,118,605 km (0.055 R)
• M7: 3,028,459 km (0.058 R)
• M8: 3,467,379 km (0.055 R)
• M9: 3,885,655 km (0.073 R)
• M10: 4,667,005 km (0.084 R)
• M11: 4,969,043 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.3

Radius: 10.9

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.85 AU - 2.69 AU

Year: 2244 Days

Day: 13.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,769,957 km

• M1: 137,331 km (0.096 R)
• M2: 640,428 km (0.077 R)
• M3: 1,140,833 km (0.079 R)
• M4: 2,208,065 km (0.089 R)
• M5: 2,619,908 km (0.063 R)
• M6: 3,126,296 km (0.104 R)
• M7: 5,316,110 km (0.081 R)
• M8: 6,247,805 km (0.087 R)
• M9: 6,679,096 km (0.073 R)
• M10: 7,207,476 km (0.114 R)
• M11: 8,262,590 km (0.092 R)
• M12: 9,417,635 km (0.12 R)
• M13: 10,180,285 km (0.069 R)
• M14: 11,506,619 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.8

Radius: 12.9

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.41 AU - 5.51 AU

Year: 6179 Days

Day: 13.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,769,957 km

• M1: 161,117 km (0.098 R)
• M2: 571,015 km (0.115 R)
• M3: 1,209,648 km (0.074 R)
• M4: 2,368,882 km (0.093 R)
• M5: 3,007,815 km (0.095 R)
• M6: 3,829,257 km (0.092 R)
• M7: 6,142,189 km (0.082 R)
• M8: 7,464,635 km (0.069 R)
• M9: 8,272,613 km (0.12 R)
• M10: 12,099,476 km (0.085 R)
• M11: 14,224,214 km (0.119 R)
• M12: 19,201,036 km (0.093 R)
• M13: 20,348,901 km (0.114 R)
• M14: 22,860,350 km (0.051 R)
• M15: 23,904,094 km (0.103 R)
• M16: 26,086,727 km (0.118 R)
• M17: 26,784,302 km (0.033 R)
• M18: 27,853,927 km (0.099 R)
• M19: 32,219,043 km (0.038 R)
• M20: 35,088,330 km (0.118 R)
• M21: 35,618,056 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.8

Radius: 13

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.77 AU - 5.61 AU

Year: 6663 Days

Day: 8.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,769,957 km

• M1: 165,455 km (0.086 R)
• M2: 601,533 km (0.095 R)
• M3: 3,999,499 km (0.095 R)
• M4: 4,973,232 km (0.086 R)
• M5: 5,593,614 km (0.089 R)
• M6: 7,998,400 km (0.082 R)
• M7: 8,887,460 km (0.051 R)
• M8: 10,382,391 km (0.1 R)
• M9: 11,107,343 km (0.086 R)
• M10: 11,952,271 km (0.102 R)
• M11: 12,524,035 km (0.116 R)
• M12: 14,695,597 km (0.099 R)
• M13: 15,506,567 km (0.101 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 480.5

Radius: 3.6

Gravity: 37.08 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 6.42 AU - 7.92 AU

Year: 12595 Days

Day: 22.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 49,769,957 km

• M1: 49,068 km (0.067 R)
• M2: 175,179 km (0.099 R)
• M3: 364,121 km (0.062 R)
• M4: 801,695 km (0.091 R)
• M5: 927,058 km (0.094 R)
• M6: 1,344,885 km (0.096 R)
• M7: 1,625,530 km (0.084 R)
• M8: 1,877,304 km (0.108 R)
• M9: 2,190,711 km (0.1 R)
• M10: 2,517,882 km (0.059 R)
• M11: 3,490,118 km (0.091 R)
• M12: 3,774,205 km (0.108 R)
• M13: 3,935,471 km (0.1 R)
• M14: 4,101,375 km (0.1 R)
• M15: 5,396,893 km (0.098 R)
• M16: 6,823,159 km (0.114 R)
• M17: 10,288,594 km (0.091 R)
• M18: 11,364,202 km (0.09 R)
• M19: 15,648,536 km (0.036 R)
• M20: 16,347,008 km (0.102 R)
• M21: 16,704,098 km (0.104 R)
• M22: 25,548,175 km (0.093 R)
• M23: 25,739,810 km (0.053 R)
• M24: 28,522,480 km (0.043 R)
• M25: 30,953,146 km (0.077 R)
• M26: 31,280,017 km (0.052 R)
• M27: 32,723,038 km (0.091 R)
• M28: 33,518,151 km (0.111 R)
• M29: 33,632,892 km (0.094 R)
• M30: 33,862,824 km (0.072 R)
• M31: 34,326,129 km (0.12 R)
• M32: 35,265,304 km (0.076 R)
• M33: 38,060,690 km (0.078 R)
• M34: 44,362,800 km (0.12 R)
• M35: 44,917,359 km (0.087 R)
• M36: 47,038,058 km (0.101 R)
• M37: 47,325,735 km (0.036 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 203.3

Radius: 7.4

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 7.63 AU - 11.51 AU

Year: 19421 Days

Day: 22.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 49,769,957 km

• M1: 102,774 km (0.046 R)
• M2: 336,146 km (0.081 R)
• M3: 965,205 km (0.093 R)
• M4: 1,254,229 km (0.071 R)
• M5: 1,735,186 km (0.064 R)
• M6: 2,167,673 km (0.065 R)
• M7: 2,588,043 km (0.103 R)
• M8: 2,839,517 km (0.094 R)
• M9: 3,720,200 km (0.115 R)
• M10: 4,802,391 km (0.114 R)
• M11: 7,404,496 km (0.089 R)
• M12: 8,133,786 km (0.106 R)
• M13: 9,389,211 km (0.105 R)
• M14: 10,140,043 km (0.081 R)
• M15: 11,202,487 km (0.056 R)
• M16: 12,573,103 km (0.049 R)
• M17: 15,302,516 km (0.099 R)
• M18: 17,872,308 km (0.057 R)
• M19: 19,338,218 km (0.113 R)
• M20: 19,656,861 km (0.096 R)
• M21: 20,966,142 km (0.111 R)
• M22: 23,306,002 km (0.12 R)
• M23: 23,939,848 km (0.115 R)
• M24: 25,622,674 km (0.092 R)
• M25: 25,910,501 km (0.108 R)
• M26: 31,910,871 km (0.104 R)
• M27: 41,617,679 km (0.038 R)
• M28: 42,954,186 km (0.102 R)
• M29: 44,181,338 km (0.054 R)
• M30: 48,440,688 km (0.112 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 280 - 16,970 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit