🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.7

Radius: 11.9

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.81 AU - 1.07 AU

Year: 608 Days

Day: 13.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 78.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 90,980,840 km

• M1: 147,952 km (0.103 R)
• M2: 563,685 km (0.115 R)
• M3: 1,077,254 km (0.112 R)
• M4: 1,628,672 km (0.101 R)
• M5: 2,154,359 km (0.099 R)
• M6: 2,715,201 km (0.079 R)
• M7: 3,578,082 km (0.106 R)
• M8: 3,974,067 km (0.108 R)
• M9: 5,086,178 km (0.092 R)
• M10: 6,201,131 km (0.085 R)
• M11: 7,235,002 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.9

Radius: 12.8

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.94 AU - 1.18 AU

Year: 728 Days

Day: 13.5 Hours

Environment

Temp: -172 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 90,980,840 km

• M1: 159,322 km (0.078 R)
• M2: 646,113 km (0.064 R)
• M3: 1,108,969 km (0.093 R)
• M4: 1,529,638 km (0.113 R)
• M5: 2,291,989 km (0.111 R)
• M6: 3,248,518 km (0.081 R)
• M7: 3,742,490 km (0.105 R)
• M8: 4,189,937 km (0.071 R)
• M9: 5,020,953 km (0.078 R)
• M10: 5,667,665 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.6

Radius: 11.6

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.9 AU - 1.26 AU

Year: 748 Days

Day: 14.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 90,980,840 km

• M1: 144,212 km (0.114 R)
• M2: 596,297 km (0.099 R)
• M3: 1,217,427 km (0.106 R)
• M4: 2,129,077 km (0.119 R)
• M5: 2,700,541 km (0.075 R)
• M6: 3,438,657 km (0.104 R)
• M7: 4,014,758 km (0.046 R)
• M8: 4,599,536 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.9

Radius: 14.6

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.35 AU - 1.77 AU

Year: 1299 Days

Day: 9 Hours

Environment

Temp: -184 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 90,980,840 km

• M1: 182,061 km (0.072 R)
• M2: 641,027 km (0.107 R)
• M3: 1,303,596 km (0.072 R)
• M4: 2,049,192 km (0.062 R)
• M5: 2,504,268 km (0.105 R)
• M6: 3,274,548 km (0.069 R)
• M7: 3,747,277 km (0.117 R)
• M8: 4,578,742 km (0.086 R)
• M9: 6,075,170 km (0.073 R)
• M10: 7,249,214 km (0.066 R)
• M11: 8,352,498 km (0.09 R)
• M12: 9,215,378 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.6

Radius: 10.6

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.88 AU - 2.66 AU

Year: 2281 Days

Day: 10.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 140.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 90,980,840 km

• M1: 135,087 km (0.048 R)
• M2: 521,498 km (0.08 R)
• M3: 878,439 km (0.069 R)
• M4: 1,264,401 km (0.114 R)
• M5: 1,732,343 km (0.059 R)
• M6: 2,530,897 km (0.064 R)
• M7: 3,199,749 km (0.115 R)
• M8: 3,812,951 km (0.051 R)
• M9: 4,157,774 km (0.103 R)
• M10: 6,660,247 km (0.077 R)
• M11: 7,162,896 km (0.087 R)
• M12: 8,628,057 km (0.112 R)
• M13: 9,328,325 km (0.088 R)
• M14: 10,393,910 km (0.093 R)
• M15: 11,857,875 km (0.107 R)
• M16: 13,411,150 km (0.034 R)
• M17: 15,143,044 km (0.118 R)
• M18: 17,070,912 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.5

Radius: 10.5

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.57 AU - 4.05 AU

Year: 4016 Days

Day: 9.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 90,980,840 km

• M1: 130,599 km (0.072 R)
• M2: 503,098 km (0.106 R)
• M3: 1,849,030 km (0.11 R)
• M4: 2,364,694 km (0.091 R)
• M5: 2,713,705 km (0.105 R)
• M6: 3,368,046 km (0.06 R)
• M7: 3,892,985 km (0.109 R)
• M8: 7,606,304 km (0.083 R)
• M9: 8,023,981 km (0.119 R)
• M10: 9,518,015 km (0.086 R)
• M11: 9,972,643 km (0.095 R)
• M12: 10,505,361 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.9

Radius: 13.9

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 2.85 AU - 3.95 AU

Year: 4181 Days

Day: 7.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 90,980,840 km

• M1: 172,935 km (0.068 R)
• M2: 713,283 km (0.054 R)
• M3: 2,017,327 km (0.088 R)
• M4: 2,766,214 km (0.089 R)
• M5: 3,304,467 km (0.118 R)
• M6: 3,979,453 km (0.093 R)
• M7: 5,030,228 km (0.106 R)
• M8: 6,015,929 km (0.115 R)
• M9: 7,784,624 km (0.12 R)
• M10: 8,906,010 km (0.115 R)
• M11: 9,878,546 km (0.108 R)
• M12: 10,653,463 km (0.095 R)
• M13: 11,146,837 km (0.087 R)
• M14: 12,227,831 km (0.102 R)
• M15: 12,818,892 km (0.114 R)
• M16: 14,272,834 km (0.102 R)
• M17: 14,984,022 km (0.091 R)
• M18: 16,300,334 km (0.086 R)
• M19: 18,005,151 km (0.101 R)
• M20: 19,425,882 km (0.056 R)
• M21: 21,553,014 km (0.072 R)
• M22: 25,146,953 km (0.077 R)
• M23: 27,753,846 km (0.067 R)
• M24: 28,432,721 km (0.038 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 966.9

Radius: 3.9

Gravity: 63.57 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 5.33 AU - 7.97 AU

Year: 11436 Days

Day: 20 Hours

Environment

Temp: -239 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 90,980,840 km

• M1: 55,800 km (0.098 R)
• M2: 177,573 km (0.089 R)
• M3: 490,831 km (0.109 R)
• M4: 708,795 km (0.086 R)
• M5: 1,541,456 km (0.072 R)
• M6: 3,375,078 km (0.073 R)
• M7: 4,068,164 km (0.086 R)
• M8: 4,463,701 km (0.052 R)
• M9: 5,053,117 km (0.113 R)
• M10: 5,473,936 km (0.082 R)
• M11: 6,424,780 km (0.108 R)
• M12: 7,045,461 km (0.025 R)
• M13: 9,984,012 km (0.076 R)
• M14: 11,275,940 km (0.08 R)
• M15: 14,949,764 km (0.074 R)
• M16: 15,305,657 km (0.048 R)
• M17: 16,709,783 km (0.095 R)
• M18: 22,716,137 km (0.114 R)
• M19: 24,439,505 km (0.047 R)
• M20: 25,940,570 km (0.115 R)
• M21: 29,903,866 km (0.116 R)
• M22: 46,849,266 km (0.104 R)
• M23: 49,314,639 km (0.066 R)
• M24: 54,502,244 km (0.036 R)
• M25: 56,194,944 km (0.083 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 704.9

Radius: 5.5

Gravity: 23.3 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 6.54 AU - 9.56 AU

Year: 15231 Days

Day: 17.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 90,980,840 km

• M1: 69,114 km (0.1 R)
• M2: 335,398 km (0.088 R)
• M3: 678,127 km (0.075 R)
• M4: 1,117,047 km (0.047 R)
• M5: 1,518,867 km (0.077 R)
• M6: 2,431,414 km (0.056 R)
• M7: 3,104,156 km (0.064 R)
• M8: 3,893,733 km (0.111 R)
• M9: 4,543,736 km (0.112 R)
• M10: 4,877,489 km (0.085 R)
• M11: 5,299,654 km (0.099 R)
• M12: 5,745,605 km (0.097 R)
• M13: 6,502,571 km (0.048 R)
• M14: 10,484,567 km (0.074 R)
• M15: 10,949,218 km (0.106 R)
• M16: 11,549,105 km (0.081 R)
• M17: 12,297,543 km (0.101 R)
• M18: 12,618,880 km (0.11 R)
• M19: 14,522,213 km (0.115 R)
• M20: 15,917,662 km (0.082 R)
• M21: 19,057,722 km (0.105 R)
• M22: 27,281,864 km (0.119 R)
• M23: 39,367,876 km (0.104 R)
• M24: 46,254,166 km (0.117 R)
• M25: 51,874,258 km (0.088 R)
• M26: 53,389,535 km (0.104 R)
• M27: 55,281,500 km (0.115 R)
• M28: 60,482,419 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 989.7

Radius: 3.6

Gravity: 76.37 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 10.01 AU - 10.41 AU

Year: 21755 Days

Day: 20.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 90,980,840 km

• M1: 48,619 km (0.051 R)
• M2: 194,178 km (0.042 R)
• M3: 357,838 km (0.08 R)
• M4: 483,650 km (0.055 R)
• M5: 974,032 km (0.062 R)
• M6: 1,151,156 km (0.089 R)
• M7: 1,382,135 km (0.097 R)
• M8: 3,024,570 km (0.096 R)
• M9: 4,688,397 km (0.106 R)
• M10: 5,439,079 km (0.083 R)
• M11: 7,325,359 km (0.112 R)
• M12: 7,950,528 km (0.099 R)
• M13: 8,724,099 km (0.09 R)
• M14: 8,896,137 km (0.093 R)
• M15: 9,546,439 km (0.113 R)
• M16: 10,743,371 km (0.116 R)
• M17: 10,940,990 km (0.109 R)
• M18: 11,617,621 km (0.096 R)
• M19: 12,107,554 km (0.074 R)
• M20: 13,354,452 km (0.106 R)
• M21: 17,604,528 km (0.112 R)
• M22: 18,343,841 km (0.054 R)
• M23: 18,626,281 km (0.062 R)
• M24: 24,446,237 km (0.109 R)
• M25: 25,598,888 km (0.026 R)
• M26: 28,764,379 km (0.093 R)
• M27: 29,273,311 km (0.06 R)
• M28: 37,646,304 km (0.11 R)
• M29: 45,736,557 km (0.095 R)
• M30: 47,836,911 km (0.12 R)
• M31: 57,282,072 km (0.053 R)
• M32: 62,864,017 km (0.099 R)
• M33: 69,024,308 km (0.117 R)
• M34: 74,376,022 km (0.092 R)
• M35: 77,765,162 km (0.118 R)
• M36: 88,012,766 km (0.048 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 524 - 10,947 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit