🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.52 AU - 0.68 AU

Year: 296 Days

Day: 34.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 39 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.62 AU - 0.64 AU

Year: 318 Days

Day: 26.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 49.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525.4

Radius: 13

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.92 AU - 1.04 AU

Year: 617 Days

Day: 5 Hours

Environment

Temp: -158 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 58,045,989 km

• M1: 162,164 km (0.037 R)
• M2: 573,857 km (0.108 R)
• M3: 982,708 km (0.069 R)
• M4: 1,413,401 km (0.104 R)
• M5: 1,850,077 km (0.118 R)
• M6: 2,668,377 km (0.089 R)
• M7: 3,274,847 km (0.115 R)
• M8: 3,930,834 km (0.08 R)
• M9: 4,829,169 km (0.082 R)
• M10: 5,787,942 km (0.106 R)
• M11: 6,495,091 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609

Radius: 11.3

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.46 AU - 1.7 AU

Year: 1263 Days

Day: 13.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 58,045,989 km

• M1: 142,118 km (0.081 R)
• M2: 636,090 km (0.064 R)
• M3: 1,039,107 km (0.057 R)
• M4: 1,564,495 km (0.099 R)
• M5: 2,307,846 km (0.071 R)
• M6: 2,845,501 km (0.071 R)
• M7: 3,331,545 km (0.109 R)
• M8: 5,191,196 km (0.115 R)
• M9: 5,790,934 km (0.082 R)
• M10: 6,482,525 km (0.063 R)
• M11: 8,138,274 km (0.094 R)
• M12: 9,035,412 km (0.083 R)
• M13: 9,781,307 km (0.082 R)
• M14: 10,828,043 km (0.047 R)
• M15: 11,361,809 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.1

Radius: 13.7

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 4.02 AU - 4.02 AU

Year: 5125 Days

Day: 6.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 58,045,989 km

• M1: 170,392 km (0.104 R)
• M2: 727,195 km (0.055 R)
• M3: 1,247,646 km (0.119 R)
• M4: 1,731,745 km (0.108 R)
• M5: 2,407,778 km (0.064 R)
• M6: 3,174,467 km (0.118 R)
• M7: 3,682,352 km (0.105 R)
• M8: 4,147,003 km (0.12 R)
• M9: 5,167,410 km (0.112 R)
• M10: 6,746,714 km (0.091 R)
• M11: 7,231,860 km (0.107 R)
• M12: 8,993,226 km (0.091 R)
• M13: 10,468,111 km (0.113 R)
• M14: 11,407,885 km (0.105 R)
• M15: 11,848,899 km (0.057 R)
• M16: 12,869,755 km (0.104 R)
• M17: 15,262,573 km (0.109 R)
• M18: 16,720,255 km (0.105 R)
• M19: 19,009,701 km (0.112 R)
• M20: 22,403,328 km (0.111 R)
• M21: 24,122,956 km (0.104 R)
• M22: 25,097,137 km (0.04 R)
• M23: 25,761,053 km (0.095 R)
• M24: 27,297,871 km (0.076 R)
• M25: 32,665,742 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 371.7

Radius: 5

Gravity: 14.87 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 7.42 AU - 11.22 AU

Year: 18091 Days

Day: 16.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 58,045,989 km

• M1: 68,217 km (0.09 R)
• M2: 295,306 km (0.042 R)
• M3: 671,246 km (0.049 R)
• M4: 946,655 km (0.105 R)
• M5: 1,153,549 km (0.099 R)
• M6: 1,447,359 km (0.071 R)
• M7: 1,840,203 km (0.052 R)
• M8: 3,243,880 km (0.085 R)
• M9: 3,581,672 km (0.113 R)
• M10: 3,773,157 km (0.069 R)
• M11: 4,358,085 km (0.074 R)
• M12: 5,560,104 km (0.116 R)
• M13: 6,967,820 km (0.107 R)
• M14: 8,074,844 km (0.068 R)
• M15: 8,309,563 km (0.102 R)
• M16: 9,243,353 km (0.113 R)
• M17: 10,190,607 km (0.118 R)
• M18: 10,631,771 km (0.101 R)
• M19: 10,800,368 km (0.102 R)
• M20: 13,158,778 km (0.102 R)
• M21: 14,150,612 km (0.096 R)
• M22: 15,049,546 km (0.111 R)
• M23: 16,356,283 km (0.091 R)
• M24: 16,581,278 km (0.113 R)
• M25: 17,423,664 km (0.055 R)
• M26: 17,736,922 km (0.108 R)
• M27: 18,455,441 km (0.072 R)
• M28: 18,780,965 km (0.097 R)
• M29: 21,256,810 km (0.111 R)
• M30: 29,749,930 km (0.11 R)
• M31: 30,763,157 km (0.09 R)
• M32: 35,671,463 km (0.117 R)
• M33: 39,576,565 km (0.115 R)
• M34: 41,215,111 km (0.096 R)
• M35: 44,773,147 km (0.036 R)
• M36: 45,656,672 km (0.117 R)
• M37: 55,813,918 km (0.117 R)
• M38: 58,045,919 km (0.059 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 477 - 18,762 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit