🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.3

Radius: 11.3

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.5 AU - 0.72 AU

Year: 323 Days

Day: 11.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 86,949,573 km

• M1: 140,772 km (0.087 R)
• M2: 492,177 km (0.083 R)
• M3: 941,868 km (0.081 R)
• M4: 1,398,890 km (0.115 R)
• M5: 2,039,767 km (0.098 R)
• M6: 2,631,127 km (0.104 R)
• M7: 3,397,068 km (0.091 R)
• M8: 3,827,162 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534

Radius: 8.4

Gravity: 7.57 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.99 AU - 1.07 AU

Year: 709 Days

Day: 14 Hours

Environment

Temp: -173 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 86,949,573 km

• M1: 105,018 km (0.07 R)
• M2: 407,804 km (0.097 R)
• M3: 705,354 km (0.112 R)
• M4: 1,201,420 km (0.085 R)
• M5: 1,650,663 km (0.118 R)
• M6: 1,923,978 km (0.11 R)
• M7: 2,296,028 km (0.1 R)
• M8: 2,874,523 km (0.051 R)
• M9: 3,210,969 km (0.11 R)
• M10: 3,709,578 km (0.092 R)
• M11: 4,035,702 km (0.048 R)
• M12: 4,828,122 km (0.1 R)
• M13: 5,701,923 km (0.093 R)
• M14: 6,176,597 km (0.08 R)
• M15: 7,011,951 km (0.083 R)
• M16: 7,379,513 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.4

Radius: 10.2

Gravity: 8.48 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.64 AU - 2.94 AU

Year: 3161 Days

Day: 14.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 86,949,573 km

• M1: 128,953 km (0.067 R)
• M2: 455,526 km (0.091 R)
• M3: 901,028 km (0.116 R)
• M4: 1,667,567 km (0.032 R)
• M5: 2,094,819 km (0.079 R)
• M6: 2,805,858 km (0.094 R)
• M7: 3,320,175 km (0.069 R)
• M8: 3,792,605 km (0.079 R)
• M9: 4,110,351 km (0.109 R)
• M10: 4,848,168 km (0.04 R)
• M11: 5,591,071 km (0.082 R)
• M12: 5,948,011 km (0.089 R)
• M13: 6,320,061 km (0.095 R)
• M14: 7,016,439 km (0.113 R)
• M15: 8,419,518 km (0.066 R)
• M16: 9,530,432 km (0.035 R)
• M17: 9,921,630 km (0.101 R)
• M18: 10,694,602 km (0.037 R)
• M19: 13,015,613 km (0.116 R)
• M20: 14,548,842 km (0.079 R)
• M21: 15,653,622 km (0.103 R)
• M22: 16,983,846 km (0.09 R)
• M23: 18,689,860 km (0.117 R)
• M24: 20,572,101 km (0.08 R)
• M25: 21,894,995 km (0.114 R)
• M26: 23,769,755 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 714.5

Radius: 10.9

Gravity: 6.01 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.41 AU - 3.35 AU

Year: 3315 Days

Day: 14.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 86,949,573 km

• M1: 135,536 km (0.109 R)
• M2: 792,270 km (0.114 R)
• M3: 2,273,140 km (0.075 R)
• M4: 2,960,243 km (0.058 R)
• M5: 4,050,213 km (0.078 R)
• M6: 4,865,671 km (0.101 R)
• M7: 7,097,821 km (0.034 R)
• M8: 8,420,565 km (0.036 R)
• M9: 10,377,604 km (0.097 R)
• M10: 13,515,569 km (0.087 R)
• M11: 15,117,613 km (0.052 R)
• M12: 15,590,043 km (0.105 R)
• M13: 17,407,657 km (0.066 R)
• M14: 19,178,746 km (0.113 R)
• M15: 21,067,120 km (0.112 R)
• M16: 21,656,985 km (0.056 R)
• M17: 22,257,919 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.9

Radius: 8.3

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.44 AU - 4.04 AU

Year: 3956 Days

Day: 14.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 86,949,573 km

• M1: 111,151 km (0.046 R)
• M2: 1,356,853 km (0.026 R)
• M3: 1,983,518 km (0.056 R)
• M4: 2,871,382 km (0.095 R)
• M5: 3,365,354 km (0.047 R)
• M6: 3,929,338 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.9

Radius: 13.8

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 3.53 AU - 3.95 AU

Year: 4906 Days

Day: 7.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 86,949,573 km

• M1: 172,786 km (0.037 R)
• M2: 714,330 km (0.108 R)
• M3: 1,204,263 km (0.038 R)
• M4: 1,894,507 km (0.04 R)
• M5: 2,428,123 km (0.064 R)
• M6: 4,438,270 km (0.108 R)
• M7: 4,959,020 km (0.111 R)
• M8: 5,828,183 km (0.061 R)
• M9: 6,287,748 km (0.11 R)
• M10: 7,332,689 km (0.099 R)
• M11: 8,260,944 km (0.104 R)
• M12: 10,584,947 km (0.095 R)
• M13: 11,842,915 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 33.4

Radius: 3.2

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 6.21 AU - 9.67 AU

Year: 15175 Days

Day: 17.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 86,949,573 km

• M1: 42,785 km (0.106 R)
• M2: 151,243 km (0.098 R)
• M3: 275,709 km (0.085 R)
• M4: 768,185 km (0.04 R)
• M5: 2,995,099 km (0.102 R)
• M6: 6,205,469 km (0.026 R)
• M7: 6,408,623 km (0.093 R)
• M8: 8,094,292 km (0.098 R)
• M9: 8,232,371 km (0.101 R)
• M10: 9,508,441 km (0.118 R)
• M11: 11,079,069 km (0.113 R)
• M12: 12,081,973 km (0.108 R)
• M13: 13,049,273 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 765.6

Radius: 7.4

Gravity: 13.98 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 9.25 AU - 11.77 AU

Year: 23110 Days

Day: 18.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 86,949,573 km

• M1: 92,152 km (0.096 R)
• M2: 862,432 km (0.069 R)
• M3: 1,233,734 km (0.08 R)
• M4: 1,498,671 km (0.087 R)
• M5: 1,839,904 km (0.113 R)
• M6: 2,654,614 km (0.086 R)
• M7: 3,689,831 km (0.067 R)
• M8: 4,144,459 km (0.067 R)
• M9: 5,010,182 km (0.105 R)
• M10: 7,490,964 km (0.104 R)
• M11: 8,006,927 km (0.107 R)
• M12: 8,546,377 km (0.103 R)
• M13: 11,887,047 km (0.108 R)
• M14: 12,517,452 km (0.109 R)
• M15: 15,021,122 km (0.1 R)
• M16: 16,432,728 km (0.097 R)
• M17: 17,570,420 km (0.119 R)
• M18: 18,204,266 km (0.07 R)
• M19: 19,710,267 km (0.116 R)
• M20: 23,945,234 km (0.12 R)
• M21: 24,724,190 km (0.105 R)
• M22: 27,523,465 km (0.117 R)
• M23: 28,009,658 km (0.084 R)
• M24: 29,884,119 km (0.028 R)
• M25: 33,054,697 km (0.078 R)
• M26: 33,466,240 km (0.113 R)
• M27: 43,242,312 km (0.05 R)
• M28: 64,685,970 km (0.057 R)
• M29: 67,506,638 km (0.113 R)
• M30: 73,624,742 km (0.08 R)
• M31: 74,326,655 km (0.098 R)
• M32: 81,342,197 km (0.119 R)
• M33: 85,911,514 km (0.088 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 14,617 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit