🌌 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 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.47 AU - 0.75 AU

Year: 313 Days

Day: 21.6 Hours

Environment

Temp: -125 °C

Axial Tilt: 21.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 56,044,137 km

• M1: 17,353 km (0.115 R)
• M2: 40,391 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.6

Radius: 10.1

Gravity: 8.47 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.72 AU - 1.04 AU

Year: 542 Days

Day: 15 Hours

Environment

Temp: -146 °C

Axial Tilt: 65.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,044,137 km

• M1: 125,662 km (0.036 R)
• M2: 528,529 km (0.099 R)
• M3: 844,181 km (0.117 R)
• M4: 1,216,530 km (0.106 R)
• M5: 1,614,460 km (0.086 R)
• M6: 1,964,968 km (0.086 R)
• M7: 2,297,524 km (0.069 R)
• M8: 2,766,663 km (0.112 R)
• M9: 3,199,450 km (0.077 R)
• M10: 3,517,196 km (0.116 R)
• M11: 3,940,707 km (0.079 R)
• M12: 4,352,400 km (0.106 R)
• M13: 4,874,198 km (0.11 R)
• M14: 6,571,984 km (0.115 R)
• M15: 6,983,378 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.4

Radius: 14.6

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.37 AU - 1.71 AU

Year: 1254 Days

Day: 5.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,044,137 km

• M1: 181,612 km (0.086 R)
• M2: 795,113 km (0.114 R)
• M3: 1,333,515 km (0.088 R)
• M4: 1,824,196 km (0.114 R)
• M5: 2,286,005 km (0.073 R)
• M6: 3,017,239 km (0.066 R)
• M7: 3,867,404 km (0.072 R)
• M8: 4,550,318 km (0.082 R)
• M9: 5,889,668 km (0.07 R)
• M10: 7,821,874 km (0.09 R)
• M11: 8,400,220 km (0.118 R)
• M12: 10,570,286 km (0.098 R)
• M13: 12,235,011 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 155.1

Radius: 10.5

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.22 AU - 2.5 AU

Year: 2378 Days

Day: 14.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 56,044,137 km

• M1: 130,599 km (0.063 R)
• M2: 1,209,499 km (0.113 R)
• M3: 1,780,813 km (0.057 R)
• M4: 2,151,068 km (0.118 R)
• M5: 2,772,198 km (0.108 R)
• M6: 3,302,822 km (0.084 R)
• M7: 4,371,998 km (0.101 R)
• M8: 5,574,765 km (0.053 R)
• M9: 6,286,851 km (0.099 R)
• M10: 6,630,178 km (0.062 R)
• M11: 9,046,333 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.7

Radius: 11.4

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 3.17 AU - 4.17 AU

Year: 4612 Days

Day: 10.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 56,044,137 km

• M1: 141,819 km (0.045 R)
• M2: 521,498 km (0.077 R)
• M3: 1,055,563 km (0.084 R)
• M4: 1,718,431 km (0.112 R)
• M5: 2,173,208 km (0.112 R)
• M6: 2,945,881 km (0.083 R)
• M7: 3,523,628 km (0.034 R)
• M8: 4,906,960 km (0.086 R)
• M9: 6,146,977 km (0.077 R)
• M10: 6,623,895 km (0.104 R)
• M11: 7,061,468 km (0.059 R)
• M12: 8,205,144 km (0.071 R)
• M13: 8,933,386 km (0.116 R)
• M14: 10,269,595 km (0.12 R)
• M15: 11,246,469 km (0.113 R)
• M16: 13,091,160 km (0.106 R)
• M17: 14,705,919 km (0.1 R)
• M18: 16,224,487 km (0.112 R)
• M19: 18,145,474 km (0.055 R)
• M20: 19,698,449 km (0.028 R)
• M21: 20,213,664 km (0.051 R)
• M22: 21,003,391 km (0.057 R)
• M23: 22,504,307 km (0.047 R)
• M24: 23,857,120 km (0.098 R)
• M25: 24,664,650 km (0.069 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 530.3

Radius: 6.5

Gravity: 12.55 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 6.18 AU - 8.7 AU

Year: 13313 Days

Day: 20.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 56,044,137 km

• M1: 80,783 km (0.052 R)
• M2: 417,528 km (0.1 R)
• M3: 834,607 km (0.112 R)
• M4: 1,199,027 km (0.112 R)
• M5: 1,531,134 km (0.077 R)
• M6: 1,823,448 km (0.107 R)
• M7: 2,480,333 km (0.114 R)
• M8: 2,774,592 km (0.102 R)
• M9: 5,637,596 km (0.114 R)
• M10: 6,688,820 km (0.111 R)
• M11: 7,052,792 km (0.095 R)
• M12: 7,732,564 km (0.11 R)
• M13: 8,548,471 km (0.114 R)
• M14: 10,086,038 km (0.081 R)
• M15: 14,551,534 km (0.115 R)
• M16: 15,370,433 km (0.099 R)
• M17: 16,219,700 km (0.085 R)
• M18: 20,180,005 km (0.086 R)
• M19: 22,159,933 km (0.087 R)
• M20: 22,787,196 km (0.114 R)
• M21: 23,426,428 km (0.063 R)
• M22: 30,820,453 km (0.095 R)
• M23: 53,103,355 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 568.3

Radius: 4.8

Gravity: 24.67 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 6.87 AU - 8.43 AU

Year: 13880 Days

Day: 21.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 56,044,137 km

• M1: 59,690 km (0.101 R)
• M2: 252,372 km (0.115 R)
• M3: 639,680 km (0.05 R)
• M4: 893,099 km (0.085 R)
• M5: 1,315,115 km (0.053 R)
• M6: 1,963,921 km (0.042 R)
• M7: 2,145,682 km (0.03 R)
• M8: 2,419,147 km (0.114 R)
• M9: 2,693,510 km (0.094 R)
• M10: 2,849,690 km (0.106 R)
• M11: 3,536,344 km (0.12 R)
• M12: 4,604,622 km (0.09 R)
• M13: 5,688,609 km (0.089 R)
• M14: 6,646,185 km (0.08 R)
• M15: 6,808,797 km (0.09 R)
• M16: 7,442,494 km (0.093 R)
• M17: 12,955,475 km (0.115 R)
• M18: 13,793,522 km (0.107 R)
• M19: 14,462,225 km (0.118 R)
• M20: 14,735,689 km (0.062 R)
• M21: 15,720,043 km (0.11 R)
• M22: 18,611,471 km (0.117 R)
• M23: 18,853,820 km (0.082 R)
• M24: 22,562,500 km (0.102 R)
• M25: 25,123,766 km (0.088 R)
• M26: 32,535,891 km (0.098 R)
• M27: 36,545,563 km (0.046 R)
• M28: 37,308,363 km (0.1 R)
• M29: 38,472,234 km (0.106 R)
• M30: 43,228,998 km (0.108 R)
• M31: 44,801,271 km (0.109 R)
• M32: 45,968,434 km (0.104 R)
• M33: 50,369,154 km (0.085 R)
• M34: 55,541,800 km (0.09 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 308 - 11,940 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit