🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.7

Radius: 11.6

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.55 AU - 0.61 AU

Year: 300 Days

Day: 11.3 Hours

Environment

Temp: -138 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 56,593,671 km

• M1: 144,212 km (0.101 R)
• M2: 539,300 km (0.09 R)
• M3: 1,273,227 km (0.083 R)
• M4: 1,640,490 km (0.105 R)
• M5: 2,012,540 km (0.041 R)
• M6: 2,662,543 km (0.117 R)
• M7: 3,037,585 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.3

Radius: 8.4

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.52 AU - 0.76 AU

Year: 347 Days

Day: 12.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,593,671 km

• M1: 113,096 km (0.099 R)
• M2: 591,360 km (0.119 R)
• M3: 1,072,318 km (0.089 R)
• M4: 1,370,915 km (0.115 R)
• M5: 1,712,596 km (0.108 R)
• M6: 2,253,991 km (0.049 R)
• M7: 2,707,422 km (0.114 R)
• M8: 3,210,520 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.6

Radius: 12.8

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.04 AU - 1.38 AU

Year: 903 Days

Day: 6.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,593,671 km

• M1: 159,172 km (0.113 R)
• M2: 723,754 km (0.091 R)
• M3: 1,124,527 km (0.091 R)
• M4: 1,750,744 km (0.076 R)
• M5: 2,172,610 km (0.042 R)
• M6: 2,576,375 km (0.067 R)
• M7: 3,432,822 km (0.075 R)
• M8: 3,882,065 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.6

Radius: 13.9

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.09 AU - 1.75 AU

Year: 1148 Days

Day: 8.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,593,671 km

• M1: 172,935 km (0.109 R)
• M2: 906,114 km (0.106 R)
• M3: 1,472,342 km (0.064 R)
• M4: 2,399,550 km (0.062 R)
• M5: 2,953,960 km (0.073 R)
• M6: 3,395,423 km (0.107 R)
• M7: 4,878,087 km (0.116 R)
• M8: 5,994,686 km (0.111 R)
• M9: 6,472,801 km (0.089 R)
• M10: 7,000,732 km (0.063 R)
• M11: 7,767,271 km (0.071 R)
• M12: 8,674,433 km (0.07 R)
• M13: 9,198,324 km (0.067 R)
• M14: 10,374,164 km (0.106 R)
• M15: 11,613,133 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569

Radius: 13

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.62 AU - 2.04 AU

Year: 1679 Days

Day: 13.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,593,671 km

• M1: 161,715 km (0.026 R)
• M2: 569,369 km (0.07 R)
• M3: 977,921 km (0.05 R)
• M4: 1,604,886 km (0.08 R)
• M5: 2,156,453 km (0.037 R)
• M6: 2,888,735 km (0.108 R)
• M7: 3,550,257 km (0.025 R)
• M8: 4,057,842 km (0.106 R)
• M9: 4,691,539 km (0.115 R)
• M10: 5,856,009 km (0.12 R)
• M11: 7,100,214 km (0.099 R)
• M12: 7,743,635 km (0.118 R)
• M13: 8,484,294 km (0.117 R)
• M14: 8,902,270 km (0.094 R)
• M15: 10,509,250 km (0.099 R)
• M16: 12,189,085 km (0.062 R)
• M17: 12,683,805 km (0.08 R)
• M18: 13,191,989 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 359.8

Radius: 5.4

Gravity: 12.34 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 7.79 AU - 7.85 AU

Year: 14832 Days

Day: 19.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 56,593,671 km

• M1: 72,405 km (0.083 R)
• M2: 331,808 km (0.099 R)
• M3: 702,512 km (0.05 R)
• M4: 950,096 km (0.062 R)
• M5: 1,369,868 km (0.091 R)
• M6: 1,938,788 km (0.105 R)
• M7: 2,673,912 km (0.049 R)
• M8: 4,288,073 km (0.107 R)
• M9: 5,183,117 km (0.07 R)
• M10: 5,869,024 km (0.092 R)
• M11: 6,421,788 km (0.079 R)
• M12: 6,968,418 km (0.071 R)
• M13: 7,294,392 km (0.092 R)
• M14: 9,418,832 km (0.079 R)
• M15: 9,716,681 km (0.035 R)
• M16: 10,020,813 km (0.049 R)
• M17: 13,798,459 km (0.098 R)
• M18: 14,443,076 km (0.109 R)
• M19: 15,040,121 km (0.103 R)
• M20: 17,818,752 km (0.071 R)
• M21: 19,688,576 km (0.088 R)
• M22: 21,089,560 km (0.032 R)
• M23: 22,030,680 km (0.114 R)
• M24: 23,539,823 km (0.103 R)
• M25: 30,590,221 km (0.084 R)
• M26: 37,671,287 km (0.051 R)
• M27: 38,674,042 km (0.028 R)
• M28: 41,258,494 km (0.095 R)
• M29: 41,522,983 km (0.109 R)
• M30: 44,231,752 km (0.105 R)
• M31: 47,489,694 km (0.037 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 492.7

Radius: 7.9

Gravity: 7.89 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 7.41 AU - 8.97 AU

Year: 15897 Days

Day: 22.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 56,593,671 km

• M1: 98,435 km (0.062 R)
• M2: 400,623 km (0.085 R)
• M3: 1,055,263 km (0.072 R)
• M4: 1,380,190 km (0.087 R)
• M5: 1,643,781 km (0.113 R)
• M6: 2,274,187 km (0.12 R)
• M7: 2,689,022 km (0.092 R)
• M8: 3,080,370 km (0.092 R)
• M9: 4,123,217 km (0.074 R)
• M10: 6,637,807 km (0.107 R)
• M11: 7,310,998 km (0.047 R)
• M12: 8,597,240 km (0.119 R)
• M13: 10,136,004 km (0.086 R)
• M14: 10,913,464 km (0.032 R)
• M15: 12,712,677 km (0.06 R)
• M16: 14,700,983 km (0.102 R)
• M17: 15,696,257 km (0.103 R)
• M18: 18,951,357 km (0.105 R)
• M19: 19,283,166 km (0.109 R)
• M20: 23,763,323 km (0.072 R)
• M21: 28,782,481 km (0.064 R)
• M22: 29,110,848 km (0.106 R)
• M23: 30,336,653 km (0.081 R)
• M24: 38,026,732 km (0.091 R)
• M25: 41,686,045 km (0.103 R)
• M26: 41,966,092 km (0.116 R)
• M27: 42,388,557 km (0.044 R)
• M28: 43,098,997 km (0.08 R)
• M29: 43,385,327 km (0.108 R)
• M30: 45,722,046 km (0.104 R)
• M31: 47,834,368 km (0.106 R)
• M32: 50,168,843 km (0.056 R)
• M33: 54,727,987 km (0.051 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 370.9

Radius: 5.4

Gravity: 12.72 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 8.5 AU - 8.92 AU

Year: 17435 Days

Day: 23.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 56,593,671 km

• M1: 67,169 km (0.071 R)
• M2: 335,249 km (0.061 R)
• M3: 512,672 km (0.109 R)
• M4: 772,972 km (0.076 R)
• M5: 1,639,593 km (0.084 R)
• M6: 3,095,928 km (0.104 R)
• M7: 3,850,051 km (0.109 R)
• M8: 4,020,293 km (0.107 R)
• M9: 5,115,798 km (0.044 R)
• M10: 6,240,774 km (0.116 R)
• M11: 7,390,434 km (0.116 R)
• M12: 8,015,304 km (0.039 R)
• M13: 8,340,530 km (0.113 R)
• M14: 9,941,078 km (0.12 R)
• M15: 10,425,625 km (0.095 R)
• M16: 13,344,429 km (0.063 R)
• M17: 22,511,936 km (0.118 R)
• M18: 24,880,968 km (0.062 R)
• M19: 31,923,288 km (0.101 R)
• M20: 33,451,131 km (0.109 R)
• M21: 36,906,243 km (0.109 R)
• M22: 46,569,069 km (0.085 R)
• M23: 46,867,517 km (0.073 R)
• M24: 47,619,097 km (0.077 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 408 - 17,180 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit