🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.3

Radius: 13.9

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.56 AU - 0.88 AU

Year: 388 Days

Day: 6.1 Hours

Environment

Temp: -130 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,239,023 km

• M1: 172,935 km (0.105 R)
• M2: 705,952 km (0.085 R)
• M3: 1,210,247 km (0.057 R)
• M4: 1,689,259 km (0.045 R)
• M5: 2,296,926 km (0.041 R)
• M6: 3,282,327 km (0.115 R)
• M7: 3,872,490 km (0.053 R)
• M8: 5,088,272 km (0.042 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.8

Radius: 11.2

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.67 AU - 0.93 AU

Year: 455 Days

Day: 13.7 Hours

Environment

Temp: -136 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,239,023 km

• M1: 139,276 km (0.108 R)
• M2: 565,181 km (0.08 R)
• M3: 1,096,403 km (0.1 R)
• M4: 1,709,156 km (0.11 R)
• M5: 2,195,050 km (0.077 R)
• M6: 2,569,044 km (0.105 R)
• M7: 2,931,520 km (0.096 R)
• M8: 3,645,999 km (0.085 R)
• M9: 4,287,026 km (0.109 R)
• M10: 4,923,715 km (0.119 R)
• M11: 5,934,099 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.3

Radius: 14.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.95 AU - 1.27 AU

Year: 744 Days

Day: 7 Hours

Environment

Temp: -161 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,239,023 km

• M1: 184,305 km (0.11 R)
• M2: 982,260 km (0.063 R)
• M3: 1,507,947 km (0.096 R)
• M4: 1,973,196 km (0.092 R)
• M5: 2,640,552 km (0.091 R)
• M6: 3,251,211 km (0.054 R)
• M7: 3,767,323 km (0.04 R)
• M8: 4,588,316 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.5

Radius: 10.6

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.15 AU - 1.36 AU

Year: 889 Days

Day: 11.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,239,023 km

• M1: 131,945 km (0.076 R)
• M2: 462,108 km (0.119 R)
• M3: 844,181 km (0.046 R)
• M4: 1,337,255 km (0.1 R)
• M5: 1,704,817 km (0.048 R)
• M6: 3,366,999 km (0.117 R)
• M7: 3,724,987 km (0.083 R)
• M8: 4,361,676 km (0.118 R)
• M9: 5,705,663 km (0.084 R)
• M10: 6,597,864 km (0.118 R)
• M11: 7,234,703 km (0.068 R)
• M12: 7,783,278 km (0.109 R)
• M13: 9,656,543 km (0.095 R)
• M14: 10,168,167 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.7

Radius: 13.4

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.59 AU - 1.81 AU

Year: 1409 Days

Day: 14.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,239,023 km

• M1: 166,652 km (0.065 R)
• M2: 792,121 km (0.11 R)
• M3: 1,394,252 km (0.094 R)
• M4: 2,599,263 km (0.11 R)
• M5: 3,202,591 km (0.043 R)
• M6: 5,170,402 km (0.11 R)
• M7: 5,902,683 km (0.113 R)
• M8: 6,678,498 km (0.117 R)
• M9: 7,363,058 km (0.044 R)
• M10: 8,178,067 km (0.079 R)
• M11: 8,754,168 km (0.116 R)
• M12: 10,052,528 km (0.106 R)
• M13: 10,782,117 km (0.069 R)
• M14: 11,725,481 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.9

Radius: 11.8

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.93 AU - 6.45 AU

Year: 7518 Days

Day: 9.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,239,023 km

• M1: 146,756 km (0.104 R)
• M2: 618,138 km (0.117 R)
• M3: 1,324,240 km (0.063 R)
• M4: 1,744,311 km (0.09 R)
• M5: 2,467,766 km (0.082 R)
• M6: 2,957,251 km (0.065 R)
• M7: 4,458,316 km (0.069 R)
• M8: 5,904,030 km (0.106 R)
• M9: 6,285,654 km (0.108 R)
• M10: 7,169,478 km (0.094 R)
• M11: 10,140,192 km (0.118 R)
• M12: 10,596,466 km (0.111 R)
• M13: 12,302,480 km (0.076 R)
• M14: 12,769,225 km (0.113 R)
• M15: 14,756,035 km (0.115 R)
• M16: 17,454,332 km (0.034 R)
• M17: 17,846,278 km (0.118 R)
• M18: 18,310,779 km (0.119 R)
• M19: 18,851,725 km (0.118 R)
• M20: 21,567,525 km (0.043 R)
• M21: 25,777,060 km (0.109 R)
• M22: 33,622,570 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 926.5

Radius: 3.8

Gravity: 64.16 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 5.94 AU - 7.02 AU

Year: 10488 Days

Day: 24.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 63,239,023 km

• M1: 47,423 km (0.114 R)
• M2: 181,761 km (0.066 R)
• M3: 382,372 km (0.115 R)
• M4: 613,650 km (0.079 R)
• M5: 793,617 km (0.093 R)
• M6: 1,394,551 km (0.103 R)
• M7: 1,805,347 km (0.102 R)
• M8: 1,976,487 km (0.042 R)
• M9: 2,234,244 km (0.108 R)
• M10: 2,771,899 km (0.113 R)
• M11: 3,679,210 km (0.053 R)
• M12: 4,485,842 km (0.051 R)
• M13: 5,096,051 km (0.064 R)
• M14: 5,368,918 km (0.117 R)
• M15: 6,323,203 km (0.117 R)
• M16: 7,005,219 km (0.052 R)
• M17: 8,608,609 km (0.114 R)
• M18: 9,495,276 km (0.085 R)
• M19: 10,441,183 km (0.109 R)
• M20: 11,448,127 km (0.032 R)
• M21: 12,214,517 km (0.11 R)
• M22: 14,178,886 km (0.114 R)
• M23: 14,446,816 km (0.074 R)
• M24: 15,340,813 km (0.073 R)
• M25: 16,053,048 km (0.106 R)
• M26: 17,011,671 km (0.095 R)
• M27: 18,880,598 km (0.107 R)
• M28: 23,204,874 km (0.071 R)
• M29: 31,195,794 km (0.079 R)
• M30: 32,221,287 km (0.119 R)
• M31: 34,339,443 km (0.115 R)
• M32: 38,072,808 km (0.107 R)
• M33: 38,590,117 km (0.033 R)
• M34: 40,036,878 km (0.099 R)
• M35: 49,331,095 km (0.061 R)
• M36: 51,979,127 km (0.118 R)
• M37: 52,296,723 km (0.068 R)
• M38: 53,257,440 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 673.2

Radius: 7.3

Gravity: 12.63 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 7.83 AU - 8.83 AU

Year: 15286 Days

Day: 22.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,239,023 km

• M1: 90,956 km (0.118 R)
• M2: 1,847,384 km (0.077 R)
• M3: 2,486,167 km (0.055 R)
• M4: 2,775,190 km (0.116 R)
• M5: 3,036,986 km (0.095 R)
• M6: 5,655,548 km (0.097 R)
• M7: 5,883,684 km (0.106 R)
• M8: 6,157,598 km (0.12 R)
• M9: 6,440,039 km (0.039 R)
• M10: 7,294,991 km (0.105 R)
• M11: 11,480,290 km (0.106 R)
• M12: 12,475,565 km (0.051 R)
• M13: 14,779,522 km (0.113 R)
• M14: 20,476,807 km (0.119 R)
• M15: 21,473,278 km (0.077 R)
• M16: 22,787,795 km (0.105 R)
• M17: 26,838,157 km (0.079 R)
• M18: 35,678,643 km (0.075 R)
• M19: 44,608,290 km (0.064 R)
• M20: 49,424,145 km (0.069 R)
• M21: 60,808,094 km (0.08 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: 354 - 20,210 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit