🌌 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: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.6

Radius: 9.8

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.67 AU - 0.91 AU

Year: 476 Days

Day: 9.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,096,454 km

• M1: 122,670 km (0.097 R)
• M2: 441,912 km (0.101 R)
• M3: 883,226 km (0.07 R)
• M4: 1,229,844 km (0.091 R)
• M5: 1,537,866 km (0.086 R)
• M6: 1,852,022 km (0.099 R)
• M7: 2,396,109 km (0.057 R)
• M8: 3,209,174 km (0.051 R)
• M9: 3,679,659 km (0.041 R)
• M10: 4,115,437 km (0.086 R)
• M11: 5,199,274 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 900.4

Radius: 13.8

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.68 AU - 1.06 AU

Year: 550 Days

Day: 8.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,096,454 km

• M1: 171,888 km (0.104 R)
• M2: 625,768 km (0.062 R)
• M3: 1,111,063 km (0.1 R)
• M4: 1,681,181 km (0.1 R)
• M5: 2,173,507 km (0.107 R)
• M6: 2,795,835 km (0.09 R)
• M7: 3,342,016 km (0.091 R)
• M8: 4,604,323 km (0.095 R)
• M9: 5,406,467 km (0.109 R)
• M10: 6,659,648 km (0.111 R)
• M11: 7,376,821 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.5

Radius: 14.7

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.74 AU - 1.02 AU

Year: 560 Days

Day: 9.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 71,096,454 km

• M1: 182,809 km (0.113 R)
• M2: 762,800 km (0.065 R)
• M3: 1,279,660 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.2

Radius: 10.7

Gravity: 8.47 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.8 AU - 1.28 AU

Year: 719 Days

Day: 6.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,096,454 km

• M1: 135,087 km (0.112 R)
• M2: 487,390 km (0.115 R)
• M3: 974,630 km (0.103 R)
• M4: 1,610,122 km (0.092 R)
• M5: 2,007,753 km (0.118 R)
• M6: 2,372,921 km (0.05 R)
• M7: 3,402,903 km (0.088 R)
• M8: 4,224,345 km (0.077 R)
• M9: 4,605,071 km (0.079 R)
• M10: 5,210,045 km (0.101 R)
• M11: 5,629,218 km (0.111 R)
• M12: 6,385,286 km (0.091 R)
• M13: 7,253,851 km (0.093 R)
• M14: 7,632,334 km (0.063 R)
• M15: 8,023,831 km (0.117 R)
• M16: 8,981,258 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.8

Radius: 10.7

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.3 AU - 1.52 AU

Year: 1136 Days

Day: 8 Hours

Environment

Temp: -187 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,096,454 km

• M1: 147,504 km (0.113 R)
• M2: 756,516 km (0.086 R)
• M3: 1,200,523 km (0.109 R)
• M4: 1,784,254 km (0.117 R)
• M5: 2,123,991 km (0.107 R)
• M6: 2,602,405 km (0.078 R)
• M7: 3,176,412 km (0.102 R)
• M8: 3,763,434 km (0.104 R)
• M9: 4,406,256 km (0.082 R)
• M10: 5,223,808 km (0.041 R)
• M11: 5,779,714 km (0.096 R)
• M12: 6,697,497 km (0.061 R)
• M13: 7,159,156 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.9

Radius: 8

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.49 AU - 2.11 AU

Year: 1638 Days

Day: 14.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,096,454 km

• M1: 100,231 km (0.036 R)
• M2: 442,511 km (0.116 R)
• M3: 747,989 km (0.103 R)
• M4: 1,419,085 km (0.037 R)
• M5: 1,973,046 km (0.116 R)
• M6: 2,392,818 km (0.039 R)
• M7: 2,806,755 km (0.072 R)
• M8: 3,400,958 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.4

Radius: 8.8

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 4.01 AU - 5.61 AU

Year: 7155 Days

Day: 10.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,096,454 km

• M1: 109,506 km (0.059 R)
• M2: 391,946 km (0.049 R)
• M3: 1,028,186 km (0.076 R)
• M4: 3,187,183 km (0.088 R)
• M5: 5,890,566 km (0.073 R)
• M6: 6,874,022 km (0.103 R)
• M7: 8,370,150 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 747.6

Radius: 7.7

Gravity: 12.61 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 7.35 AU - 10.23 AU

Year: 17676 Days

Day: 24.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 71,096,454 km

• M1: 95,892 km (0.107 R)
• M2: 495,319 km (0.109 R)
• M3: 842,236 km (0.088 R)
• M4: 1,290,431 km (0.078 R)
• M5: 1,799,064 km (0.066 R)
• M6: 2,369,181 km (0.03 R)
• M7: 3,106,101 km (0.083 R)
• M8: 3,804,872 km (0.095 R)
• M9: 7,433,817 km (0.104 R)
• M10: 8,781,694 km (0.117 R)
• M11: 9,156,138 km (0.081 R)
• M12: 9,937,039 km (0.108 R)
• M13: 10,285,153 km (0.069 R)
• M14: 12,953,231 km (0.109 R)
• M15: 14,008,644 km (0.084 R)
• M16: 16,369,448 km (0.11 R)
• M17: 18,983,222 km (0.092 R)
• M18: 19,700,394 km (0.103 R)
• M19: 21,093,599 km (0.114 R)
• M20: 21,475,822 km (0.082 R)
• M21: 21,765,593 km (0.117 R)
• M22: 24,074,785 km (0.1 R)
• M23: 24,492,463 km (0.074 R)
• M24: 27,100,402 km (0.066 R)
• M25: 27,552,337 km (0.104 R)
• M26: 33,374,836 km (0.089 R)
• M27: 48,529,100 km (0.033 R)
• M28: 55,290,326 km (0.069 R)
• M29: 58,800,490 km (0.117 R)
• M30: 59,939,080 km (0.099 R)
• M31: 60,321,901 km (0.09 R)
• M32: 62,064,716 km (0.055 R)
• M33: 64,440,330 km (0.041 R)
• M34: 69,793,989 km (0.11 R)
• M35: 70,643,107 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 671

Radius: 7.1

Gravity: 13.31 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 8.79 AU - 9.17 AU

Year: 18252 Days

Day: 21.3 Hours

Environment

Temp: -242 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 71,096,454 km

• M1: 89,011 km (0.107 R)
• M2: 384,616 km (0.097 R)
• M3: 673,639 km (0.117 R)
• M4: 907,909 km (0.064 R)
• M5: 1,197,830 km (0.069 R)
• M6: 2,525,810 km (0.047 R)
• M7: 5,933,201 km (0.098 R)
• M8: 7,181,895 km (0.118 R)
• M9: 7,843,416 km (0.092 R)
• M10: 9,233,330 km (0.091 R)
• M11: 10,779,873 km (0.117 R)
• M12: 13,169,400 km (0.056 R)
• M13: 24,029,008 km (0.114 R)
• M14: 26,591,919 km (0.028 R)
• M15: 26,924,625 km (0.082 R)
• M16: 36,308,301 km (0.099 R)
• M17: 37,407,247 km (0.096 R)
• M18: 39,239,970 km (0.072 R)
• M19: 50,315,748 km (0.051 R)
• M20: 54,842,280 km (0.105 R)
• M21: 56,105,784 km (0.097 R)
• M22: 60,394,007 km (0.067 R)
• M23: 70,036,637 km (0.076 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: 288 - 16,205 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit