🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398

Radius: 8.1

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.64 AU - 0.96 AU

Year: 477 Days

Day: 9.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,643,082 km

• M1: 100,679 km (0.087 R)
• M2: 366,365 km (0.119 R)
• M3: 678,726 km (0.085 R)
• M4: 1,139,337 km (0.076 R)
• M5: 2,234,843 km (0.044 R)
• M6: 3,148,886 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.4

Radius: 10.7

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.96 AU - 1.04 AU

Year: 667 Days

Day: 7.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,643,082 km

• M1: 132,993 km (0.09 R)
• M2: 555,756 km (0.088 R)
• M3: 1,126,771 km (0.039 R)
• M4: 2,449,516 km (0.065 R)
• M5: 3,025,467 km (0.056 R)
• M6: 4,146,255 km (0.104 R)
• M7: 4,894,394 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.4

Radius: 14.2

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.36 AU - 1.5 AU

Year: 1140 Days

Day: 13.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,643,082 km

• M1: 176,675 km (0.118 R)
• M2: 848,070 km (0.116 R)
• M3: 1,297,612 km (0.091 R)
• M4: 1,848,880 km (0.072 R)
• M5: 3,186,584 km (0.037 R)
• M6: 4,254,264 km (0.112 R)
• M7: 5,015,119 km (0.073 R)
• M8: 6,419,993 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 762.4

Radius: 14.6

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.22 AU - 1.64 AU

Year: 1140 Days

Day: 14.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,643,082 km

• M1: 184,604 km (0.092 R)
• M2: 657,931 km (0.028 R)
• M3: 1,128,118 km (0.116 R)
• M4: 1,662,631 km (0.086 R)
• M5: 2,147,477 km (0.094 R)
• M6: 2,690,368 km (0.051 R)
• M7: 3,457,656 km (0.099 R)
• M8: 4,176,922 km (0.085 R)
• M9: 5,289,631 km (0.097 R)
• M10: 6,804,609 km (0.072 R)
• M11: 7,293,794 km (0.076 R)
• M12: 7,780,286 km (0.102 R)
• M13: 8,875,941 km (0.103 R)
• M14: 9,824,691 km (0.115 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 608.9

Radius: 5.9

Gravity: 17.49 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 6.74 AU - 7.54 AU

Year: 12723 Days

Day: 21.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 55,643,082 km

• M1: 73,453 km (0.116 R)
• M2: 368,011 km (0.056 R)
• M3: 566,677 km (0.12 R)
• M4: 887,714 km (0.077 R)
• M5: 1,259,614 km (0.061 R)
• M6: 1,667,717 km (0.094 R)
• M7: 3,378,668 km (0.091 R)
• M8: 4,251,123 km (0.089 R)
• M9: 4,460,410 km (0.092 R)
• M10: 6,238,530 km (0.111 R)
• M11: 7,804,072 km (0.107 R)
• M12: 8,348,459 km (0.06 R)
• M13: 8,966,597 km (0.081 R)
• M14: 9,768,442 km (0.102 R)
• M15: 10,562,806 km (0.11 R)
• M16: 11,285,215 km (0.096 R)
• M17: 11,804,469 km (0.071 R)
• M18: 12,099,625 km (0.045 R)
• M19: 13,910,208 km (0.106 R)
• M20: 14,641,742 km (0.047 R)
• M21: 19,089,735 km (0.085 R)
• M22: 20,752,067 km (0.083 R)
• M23: 22,149,610 km (0.099 R)
• M24: 27,638,207 km (0.05 R)
• M25: 30,197,377 km (0.092 R)
• M26: 31,760,974 km (0.111 R)
• M27: 32,794,247 km (0.109 R)
• M28: 33,495,412 km (0.117 R)
• M29: 33,731,328 km (0.025 R)
• M30: 33,968,291 km (0.081 R)
• M31: 42,704,807 km (0.065 R)
• M32: 42,982,161 km (0.104 R)
• M33: 44,814,885 km (0.086 R)
• M34: 45,968,284 km (0.111 R)
• M35: 49,089,644 km (0.048 R)
• M36: 50,160,764 km (0.116 R)
• M37: 51,091,114 km (0.063 R)
• M38: 52,190,957 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 455.1

Radius: 3.9

Gravity: 29.92 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 8.6 AU - 10.84 AU

Year: 20208 Days

Day: 15.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 177.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 55,643,082 km

• M1: 48,470 km (0.095 R)
• M2: 425,307 km (0.036 R)
• M3: 703,260 km (0.098 R)
• M4: 1,018,911 km (0.074 R)
• M5: 1,888,524 km (0.033 R)
• M6: 2,384,440 km (0.1 R)
• M7: 3,656,621 km (0.103 R)
• M8: 4,041,835 km (0.077 R)
• M9: 5,068,974 km (0.1 R)
• M10: 7,118,016 km (0.1 R)
• M11: 9,014,917 km (0.102 R)
• M12: 11,163,143 km (0.046 R)
• M13: 15,663,795 km (0.094 R)
• M14: 21,615,097 km (0.073 R)
• M15: 24,673,027 km (0.118 R)
• M16: 28,458,003 km (0.094 R)
• M17: 30,905,125 km (0.088 R)
• M18: 31,386,680 km (0.092 R)
• M19: 33,111,245 km (0.113 R)
• M20: 39,785,703 km (0.06 R)
• M21: 41,950,085 km (0.034 R)
• M22: 44,956,255 km (0.077 R)
• M23: 46,354,695 km (0.059 R)
• M24: 46,669,449 km (0.112 R)
• M25: 49,401,705 km (0.077 R)
• M26: 56,425,923 km (0.111 R)
• M27: 58,968,937 km (0.067 R)
• M28: 60,081,796 km (0.118 R)
• M29: 63,310,716 km (0.052 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 232.5

Radius: 5.5

Gravity: 7.69 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 9.74 AU - 10.5 AU

Year: 21468 Days

Day: 17.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,643,082 km

• M1: 75,697 km (0.119 R)
• M2: 283,488 km (0.116 R)
• M3: 753,375 km (0.083 R)
• M4: 1,138,141 km (0.12 R)
• M5: 1,423,873 km (0.117 R)
• M6: 2,410,620 km (0.091 R)
• M7: 3,416,067 km (0.096 R)
• M8: 7,183,241 km (0.032 R)
• M9: 10,799,919 km (0.105 R)
• M10: 14,030,934 km (0.116 R)
• M11: 15,901,057 km (0.106 R)
• M12: 18,484,463 km (0.103 R)
• M13: 20,212,468 km (0.081 R)
• M14: 26,037,809 km (0.118 R)
• M15: 26,644,877 km (0.116 R)
• M16: 29,276,154 km (0.069 R)
• M17: 43,202,818 km (0.093 R)
• M18: 43,910,715 km (0.104 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: 481 - 15,453 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit