🌌 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 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.4

Radius: 13.8

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.52 AU - 0.72 AU

Year: 331 Days

Day: 11.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 49,841,664 km

• M1: 171,589 km (0.032 R)
• M2: 629,957 km (0.099 R)
• M3: 1,151,604 km (0.113 R)
• M4: 2,806,157 km (0.083 R)
• M5: 3,500,141 km (0.069 R)
• M6: 3,986,035 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.8

Radius: 14.6

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.58 AU - 0.68 AU

Year: 339 Days

Day: 7.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 49,841,664 km

• M1: 181,612 km (0.085 R)
• M2: 653,144 km (0.102 R)
• M3: 1,292,077 km (0.106 R)
• M4: 1,802,954 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.5

Radius: 10.3

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.86 AU - 1.22 AU

Year: 719 Days

Day: 12.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,841,664 km

• M1: 128,056 km (0.034 R)
• M2: 523,892 km (0.117 R)
• M3: 1,018,163 km (0.065 R)
• M4: 1,393,803 km (0.093 R)
• M5: 1,795,324 km (0.089 R)
• M6: 2,517,583 km (0.092 R)
• M7: 3,035,341 km (0.115 R)
• M8: 3,462,592 km (0.097 R)
• M9: 3,788,117 km (0.037 R)
• M10: 5,962,223 km (0.072 R)
• M11: 6,412,363 km (0.072 R)
• M12: 7,558,732 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265.7

Radius: 9.5

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.18 AU - 1.68 AU

Year: 1160 Days

Day: 8.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,841,664 km

• M1: 118,182 km (0.067 R)
• M2: 520,002 km (0.063 R)
• M3: 1,136,495 km (0.062 R)
• M4: 1,758,972 km (0.077 R)
• M5: 2,109,480 km (0.054 R)
• M6: 2,442,335 km (0.107 R)
• M7: 2,810,495 km (0.109 R)
• M8: 3,758,647 km (0.075 R)
• M9: 4,377,533 km (0.119 R)
• M10: 4,941,068 km (0.108 R)
• M11: 5,312,819 km (0.063 R)
• M12: 5,799,012 km (0.072 R)
• M13: 6,752,997 km (0.1 R)
• M14: 7,574,888 km (0.091 R)
• M15: 8,070,356 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.8

Radius: 11.8

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 1.44 AU - 1.5 AU

Year: 1209 Days

Day: 10.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,841,664 km

• M1: 146,756 km (0.091 R)
• M2: 557,551 km (0.067 R)
• M3: 1,087,577 km (0.095 R)
• M4: 1,461,272 km (0.108 R)
• M5: 1,830,629 km (0.117 R)
• M6: 2,784,914 km (0.055 R)
• M7: 3,293,248 km (0.065 R)
• M8: 3,736,356 km (0.065 R)
• M9: 4,329,213 km (0.115 R)
• M10: 4,714,427 km (0.065 R)
• M11: 5,216,328 km (0.06 R)
• M12: 5,753,833 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.7

Radius: 15

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.52 AU - 2.5 AU

Year: 1933 Days

Day: 9.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,841,664 km

• M1: 186,549 km (0.114 R)
• M2: 771,925 km (0.084 R)
• M3: 1,622,539 km (0.119 R)
• M4: 2,099,008 km (0.041 R)
• M5: 3,570,153 km (0.044 R)
• M6: 4,464,599 km (0.077 R)
• M7: 5,081,989 km (0.104 R)
• M8: 6,059,761 km (0.096 R)
• M9: 7,061,319 km (0.081 R)
• M10: 8,252,118 km (0.093 R)
• M11: 9,186,356 km (0.082 R)
• M12: 9,816,762 km (0.094 R)
• M13: 10,540,367 km (0.046 R)
• M14: 11,164,639 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.3

Radius: 8.6

Gravity: 6.32 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.03 AU - 2.95 AU

Year: 2665 Days

Day: 8.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 49,841,664 km

• M1: 106,962 km (0.108 R)
• M2: 496,366 km (0.072 R)
• M3: 820,096 km (0.092 R)
• M4: 1,105,827 km (0.071 R)
• M5: 1,566,290 km (0.028 R)
• M6: 1,921,585 km (0.096 R)
• M7: 2,213,300 km (0.053 R)
• M8: 2,563,060 km (0.09 R)
• M9: 3,059,875 km (0.097 R)
• M10: 3,858,279 km (0.095 R)
• M11: 4,166,450 km (0.075 R)
• M12: 4,745,544 km (0.112 R)
• M13: 6,192,454 km (0.059 R)
• M14: 6,807,750 km (0.083 R)
• M15: 7,912,680 km (0.076 R)
• M16: 8,316,894 km (0.117 R)
• M17: 9,508,590 km (0.091 R)
• M18: 10,109,226 km (0.084 R)
• M19: 11,000,081 km (0.028 R)
• M20: 11,861,615 km (0.032 R)
• M21: 12,683,356 km (0.046 R)
• M22: 13,763,303 km (0.102 R)
• M23: 17,009,427 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 744.3

Radius: 3.9

Gravity: 48.93 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 6.33 AU - 8.51 AU

Year: 13709 Days

Day: 18.7 Hours

Environment

Temp: -241 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 49,841,664 km

• M1: 204,799 km (0.099 R)
• M2: 888,462 km (0.057 R)
• M3: 1,141,282 km (0.076 R)
• M4: 1,339,948 km (0.077 R)
• M5: 1,545,795 km (0.095 R)
• M6: 1,755,531 km (0.067 R)
• M7: 3,176,561 km (0.048 R)
• M8: 7,827,559 km (0.11 R)
• M9: 8,396,629 km (0.112 R)
• M10: 11,600,118 km (0.06 R)
• M11: 14,113,662 km (0.107 R)
• M12: 17,045,481 km (0.096 R)
• M13: 18,160,583 km (0.094 R)
• M14: 23,686,280 km (0.109 R)
• M15: 26,302,896 km (0.12 R)
• M16: 29,217,511 km (0.076 R)
• M17: 35,550,737 km (0.098 R)
• M18: 38,562,292 km (0.085 R)
• M19: 46,749,185 km (0.093 R)
• M20: 51,164,117 km (0.102 R)
• M21: 58,472,123 km (0.069 R)
• M22: 60,629,175 km (0.073 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 216.4

Radius: 4.1

Gravity: 12.87 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 8.92 AU - 9.44 AU

Year: 18865 Days

Day: 24.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 49,841,664 km

• M1: 53,107 km (0.119 R)
• M2: 232,774 km (0.073 R)
• M3: 371,452 km (0.063 R)
• M4: 847,771 km (0.082 R)
• M5: 977,622 km (0.044 R)
• M6: 1,520,064 km (0.029 R)
• M7: 1,652,159 km (0.026 R)
• M8: 2,614,223 km (0.095 R)
• M9: 3,190,025 km (0.099 R)
• M10: 6,539,970 km (0.079 R)
• M11: 6,851,882 km (0.09 R)
• M12: 7,092,435 km (0.062 R)
• M13: 7,847,755 km (0.082 R)
• M14: 8,609,058 km (0.109 R)
• M15: 8,889,105 km (0.105 R)
• M16: 11,632,730 km (0.089 R)
• M17: 13,042,242 km (0.102 R)
• M18: 14,430,809 km (0.088 R)
• M19: 20,473,815 km (0.108 R)
• M20: 21,994,328 km (0.116 R)
• M21: 22,167,712 km (0.078 R)
• M22: 31,500,225 km (0.064 R)
• M23: 35,627,331 km (0.067 R)
• M24: 36,834,437 km (0.073 R)
• M25: 37,079,179 km (0.11 R)
• M26: 37,571,804 km (0.117 R)
• M27: 45,073,240 km (0.081 R)
• M28: 47,925,024 km (0.091 R)
• M29: 48,803,313 km (0.104 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: 298 - 15,902 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit