🌌 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 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.44 AU - 0.6 AU

Year: 246 Days

Day: 38.1 Hours

Environment

Temp: -110 °C

Axial Tilt: 29 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,364,246 km

• M1: 409,898 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.3

Radius: 11.9

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.68 AU - 0.9 AU

Year: 461 Days

Day: 11.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,364,246 km

• M1: 147,952 km (0.1 R)
• M2: 732,132 km (0.048 R)
• M3: 1,157,289 km (0.066 R)
• M4: 1,563,298 km (0.037 R)
• M5: 2,106,936 km (0.072 R)
• M6: 2,568,895 km (0.062 R)
• M7: 3,638,819 km (0.088 R)
• M8: 4,588,615 km (0.104 R)
• M9: 5,404,223 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.4

Radius: 12.6

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.27 AU - 2.75 AU

Year: 2609 Days

Day: 5.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,364,246 km

• M1: 156,779 km (0.086 R)
• M2: 599,738 km (0.045 R)
• M3: 1,466,957 km (0.072 R)
• M4: 2,023,610 km (0.112 R)
• M5: 2,625,742 km (0.117 R)
• M6: 4,666,855 km (0.118 R)
• M7: 5,793,327 km (0.104 R)
• M8: 7,576,384 km (0.026 R)
• M9: 9,507,244 km (0.109 R)
• M10: 10,029,041 km (0.084 R)
• M11: 11,526,666 km (0.054 R)
• M12: 12,310,110 km (0.073 R)
• M13: 13,941,774 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.1

Radius: 10.9

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.12 AU - 3.18 AU

Year: 2830 Days

Day: 14.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 74,364,246 km

• M1: 136,583 km (0.107 R)
• M2: 4,829,767 km (0.08 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 699.6

Radius: 5.6

Gravity: 22.31 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 7.76 AU - 8.28 AU

Year: 14899 Days

Day: 23.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 74,364,246 km

• M1: 89,460 km (0.12 R)
• M2: 265,387 km (0.119 R)
• M3: 521,797 km (0.104 R)
• M4: 865,274 km (0.097 R)
• M5: 1,392,158 km (0.07 R)
• M6: 1,603,689 km (0.104 R)
• M7: 2,309,642 km (0.084 R)
• M8: 2,907,584 km (0.047 R)
• M9: 4,597,891 km (0.11 R)
• M10: 5,427,710 km (0.117 R)
• M11: 6,312,731 km (0.114 R)
• M12: 7,334,784 km (0.098 R)
• M13: 7,652,529 km (0.091 R)
• M14: 7,838,180 km (0.117 R)
• M15: 8,413,384 km (0.025 R)
• M16: 9,701,572 km (0.075 R)
• M17: 12,988,087 km (0.112 R)
• M18: 14,417,196 km (0.103 R)
• M19: 17,664,517 km (0.12 R)
• M20: 19,760,383 km (0.081 R)
• M21: 19,934,963 km (0.089 R)
• M22: 23,351,928 km (0.098 R)
• M23: 24,639,667 km (0.065 R)
• M24: 25,045,227 km (0.098 R)
• M25: 27,355,766 km (0.106 R)
• M26: 34,245,795 km (0.103 R)
• M27: 37,218,005 km (0.107 R)
• M28: 39,799,317 km (0.096 R)
• M29: 40,638,710 km (0.057 R)
• M30: 42,642,873 km (0.074 R)
• M31: 44,862,457 km (0.101 R)
• M32: 50,014,009 km (0.112 R)
• M33: 51,155,141 km (0.095 R)
• M34: 51,484,406 km (0.118 R)
• M35: 54,854,846 km (0.106 R)
• M36: 59,816,260 km (0.048 R)
• M37: 59,998,919 km (0.094 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 857.5

Radius: 5

Gravity: 34.3 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 8.3 AU - 9.4 AU

Year: 17271 Days

Day: 17.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 74,364,246 km

• M1: 62,233 km (0.115 R)
• M2: 460,462 km (0.102 R)
• M3: 790,326 km (0.088 R)
• M4: 1,002,007 km (0.045 R)
• M5: 1,746,256 km (0.111 R)
• M6: 1,989,203 km (0.114 R)
• M7: 2,451,610 km (0.025 R)
• M8: 3,386,297 km (0.104 R)
• M9: 3,887,151 km (0.07 R)
• M10: 4,043,481 km (0.107 R)
• M11: 4,435,876 km (0.118 R)
• M12: 5,108,618 km (0.05 R)
• M13: 8,382,567 km (0.056 R)
• M14: 9,128,761 km (0.111 R)
• M15: 10,449,561 km (0.088 R)
• M16: 12,223,044 km (0.116 R)
• M17: 14,785,506 km (0.111 R)
• M18: 15,951,471 km (0.073 R)
• M19: 16,434,523 km (0.103 R)
• M20: 19,907,587 km (0.104 R)
• M21: 23,219,534 km (0.058 R)
• M22: 25,876,841 km (0.096 R)
• M23: 26,097,797 km (0.113 R)
• M24: 27,564,754 km (0.111 R)
• M25: 27,795,284 km (0.066 R)
• M26: 28,729,972 km (0.12 R)
• M27: 31,158,245 km (0.101 R)
• M28: 32,039,526 km (0.104 R)
• M29: 35,458,136 km (0.102 R)
• M30: 36,004,767 km (0.112 R)
• M31: 36,696,058 km (0.099 R)
• M32: 37,114,933 km (0.096 R)
• M33: 37,820,286 km (0.085 R)
• M34: 40,730,863 km (0.077 R)
• M35: 46,829,669 km (0.086 R)
• M36: 52,974,252 km (0.111 R)
• M37: 55,869,718 km (0.112 R)
• M38: 73,255,235 km (0.096 R)
• M39: 74,364,204 km (0.09 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 378 - 18,367 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit