🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.45 AU - 0.67 AU

Year: 275 Days

Day: 33.8 Hours

Environment

Temp: -120 °C

Axial Tilt: 3.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.3

Radius: 13

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.78 AU - 0.9 AU

Year: 505 Days

Day: 12.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,212,965 km

• M1: 163,510 km (0.063 R)
• M2: 603,927 km (0.066 R)
• M3: 1,009,038 km (0.045 R)
• M4: 1,502,860 km (0.07 R)
• M5: 2,037,523 km (0.082 R)
• M6: 2,536,432 km (0.103 R)
• M7: 3,314,640 km (0.117 R)
• M8: 4,049,914 km (0.103 R)
• M9: 4,603,276 km (0.078 R)
• M10: 5,130,459 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 310.7

Radius: 11

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 2.43 AU - 4.01 AU

Year: 3790 Days

Day: 10.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,212,965 km

• M1: 137,331 km (0.103 R)
• M2: 485,146 km (0.106 R)
• M3: 831,315 km (0.079 R)
• M4: 1,381,088 km (0.071 R)
• M5: 2,603,452 km (0.115 R)
• M6: 3,036,837 km (0.047 R)
• M7: 4,336,094 km (0.082 R)
• M8: 6,158,944 km (0.097 R)
• M9: 8,577,493 km (0.048 R)
• M10: 10,239,974 km (0.115 R)
• M11: 10,774,188 km (0.09 R)
• M12: 14,427,219 km (0.062 R)
• M13: 16,661,463 km (0.036 R)
• M14: 17,888,315 km (0.078 R)
• M15: 18,833,175 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 411.3

Radius: 12.6

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 4.78 AU - 4.8 AU

Year: 6877 Days

Day: 11.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,212,965 km

• M1: 163,810 km (0.094 R)
• M2: 606,470 km (0.098 R)
• M3: 1,174,343 km (0.082 R)
• M4: 1,656,198 km (0.096 R)
• M5: 2,074,174 km (0.083 R)
• M6: 2,684,085 km (0.087 R)
• M7: 3,168,483 km (0.105 R)
• M8: 5,871,268 km (0.077 R)
• M9: 7,520,285 km (0.117 R)
• M10: 9,459,373 km (0.059 R)
• M11: 10,909,574 km (0.105 R)
• M12: 11,424,490 km (0.074 R)
• M13: 12,706,394 km (0.072 R)
• M14: 13,382,278 km (0.058 R)
• M15: 18,473,542 km (0.087 R)
• M16: 21,230,631 km (0.089 R)
• M17: 28,945,991 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.9

Radius: 14.1

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 4.55 AU - 6.23 AU

Year: 8209 Days

Day: 12.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,212,965 km

• M1: 175,329 km (0.073 R)
• M2: 905,666 km (0.079 R)
• M3: 2,137,604 km (0.036 R)
• M4: 2,624,994 km (0.049 R)
• M5: 3,273,800 km (0.077 R)
• M6: 4,068,613 km (0.1 R)
• M7: 5,449,102 km (0.093 R)
• M8: 7,550,953 km (0.105 R)
• M9: 9,117,093 km (0.112 R)
• M10: 15,111,330 km (0.051 R)
• M11: 16,342,520 km (0.113 R)
• M12: 16,982,649 km (0.072 R)
• M13: 17,806,485 km (0.087 R)
• M14: 19,415,260 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 387.9

Radius: 7.1

Gravity: 7.69 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 9.01 AU - 11.21 AU

Year: 21088 Days

Day: 20.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 65,212,965 km

• M1: 92,152 km (0.055 R)
• M2: 345,122 km (0.085 R)
• M3: 609,312 km (0.086 R)
• M4: 933,491 km (0.104 R)
• M5: 1,193,791 km (0.059 R)
• M6: 1,442,722 km (0.1 R)
• M7: 2,262,518 km (0.104 R)
• M8: 2,977,297 km (0.061 R)
• M9: 3,360,417 km (0.117 R)
• M10: 3,862,916 km (0.075 R)
• M11: 4,101,974 km (0.1 R)
• M12: 4,844,727 km (0.096 R)
• M13: 5,087,674 km (0.083 R)
• M14: 5,485,904 km (0.109 R)
• M15: 8,228,930 km (0.052 R)
• M16: 8,778,104 km (0.056 R)
• M17: 10,400,194 km (0.11 R)
• M18: 10,864,396 km (0.029 R)
• M19: 14,367,230 km (0.113 R)
• M20: 16,372,589 km (0.046 R)
• M21: 17,890,709 km (0.082 R)
• M22: 20,565,518 km (0.04 R)
• M23: 20,837,787 km (0.118 R)
• M24: 24,599,126 km (0.068 R)
• M25: 30,638,093 km (0.068 R)
• M26: 51,297,858 km (0.045 R)
• M27: 52,810,442 km (0.119 R)
• M28: 54,352,646 km (0.118 R)
• M29: 57,706,481 km (0.119 R)
• M30: 58,611,399 km (0.099 R)
• M31: 60,449,657 km (0.057 R)
• M32: 61,759,087 km (0.105 R)
• M33: 65,017,778 km (0.106 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 455 - 12,949 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit