🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.4

Radius: 11.4

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.5 AU - 0.82 AU

Year: 358 Days

Day: 11.3 Hours

Environment

Temp: -157 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 67,156,557 km

• M1: 141,968 km (0.095 R)
• M2: 506,688 km (0.077 R)
• M3: 1,023,249 km (0.106 R)
• M4: 1,704,967 km (0.081 R)
• M5: 3,202,292 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.8

Radius: 10.3

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.85 AU - 1.41 AU

Year: 801 Days

Day: 11.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,156,557 km

• M1: 128,056 km (0.113 R)
• M2: 600,785 km (0.113 R)
• M3: 1,263,653 km (0.114 R)
• M4: 1,806,245 km (0.06 R)
• M5: 2,243,669 km (0.047 R)
• M6: 3,081,716 km (0.109 R)
• M7: 3,696,863 km (0.107 R)
• M8: 4,100,926 km (0.102 R)
• M9: 5,033,071 km (0.088 R)
• M10: 5,848,978 km (0.095 R)
• M11: 6,792,791 km (0.094 R)
• M12: 7,312,494 km (0.095 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.8

Radius: 10.2

Gravity: 1.72 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.83 AU - 1.91 AU

Year: 1705 Days

Day: 8.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,156,557 km

• M1: 126,859 km (0.067 R)
• M2: 549,623 km (0.077 R)
• M3: 1,281,605 km (0.101 R)
• M4: 1,681,480 km (0.095 R)
• M5: 2,406,581 km (0.1 R)
• M6: 3,287,114 km (0.076 R)
• M7: 3,727,231 km (0.102 R)
• M8: 4,622,275 km (0.09 R)
• M9: 5,065,683 km (0.096 R)
• M10: 5,654,650 km (0.119 R)
• M11: 7,060,870 km (0.11 R)
• M12: 7,994,361 km (0.062 R)
• M13: 8,793,512 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.7

Radius: 14.3

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.06 AU - 2.46 AU

Year: 2266 Days

Day: 5.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,156,557 km

• M1: 178,470 km (0.095 R)
• M2: 632,649 km (0.063 R)
• M3: 1,187,508 km (0.103 R)
• M4: 1,854,864 km (0.113 R)
• M5: 2,484,073 km (0.119 R)
• M6: 3,115,076 km (0.064 R)
• M7: 3,695,516 km (0.065 R)
• M8: 4,722,655 km (0.117 R)
• M9: 5,183,716 km (0.084 R)
• M10: 7,284,968 km (0.058 R)
• M11: 8,315,098 km (0.079 R)
• M12: 9,571,272 km (0.094 R)
• M13: 11,095,524 km (0.057 R)
• M14: 11,763,778 km (0.087 R)
• M15: 12,696,521 km (0.037 R)
• M16: 13,469,343 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.7

Radius: 12.6

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 2.52 AU - 2.74 AU

Year: 2844 Days

Day: 8 Hours

Environment

Temp: -207 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 67,156,557 km

• M1: 156,779 km (0.117 R)
• M2: 569,519 km (0.118 R)
• M3: 1,179,430 km (0.119 R)
• M4: 1,705,565 km (0.076 R)
• M5: 2,855,524 km (0.075 R)
• M6: 3,881,018 km (0.12 R)
• M7: 4,534,311 km (0.112 R)
• M8: 4,970,240 km (0.086 R)
• M9: 5,409,010 km (0.113 R)
• M10: 6,534,884 km (0.107 R)
• M11: 8,338,885 km (0.097 R)
• M12: 8,890,302 km (0.118 R)
• M13: 9,951,998 km (0.093 R)
• M14: 11,178,252 km (0.084 R)
• M15: 11,721,592 km (0.077 R)
• M16: 14,657,899 km (0.114 R)
• M17: 15,875,625 km (0.053 R)
• M18: 18,569,584 km (0.1 R)
• M19: 20,177,611 km (0.084 R)
• M20: 20,858,730 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887

Radius: 8

Gravity: 13.86 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 2.43 AU - 4.03 AU

Year: 3871 Days

Day: 7.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 67,156,557 km

• M1: 99,483 km (0.112 R)
• M2: 440,267 km (0.099 R)
• M3: 719,566 km (0.093 R)
• M4: 988,692 km (0.114 R)
• M5: 1,295,218 km (0.114 R)
• M6: 2,090,032 km (0.088 R)
• M7: 2,487,214 km (0.066 R)
• M8: 2,773,395 km (0.081 R)
• M9: 3,195,859 km (0.1 R)
• M10: 4,169,592 km (0.067 R)
• M11: 5,060,148 km (0.087 R)
• M12: 5,328,826 km (0.073 R)
• M13: 6,101,948 km (0.062 R)
• M14: 8,194,373 km (0.034 R)
• M15: 8,490,577 km (0.086 R)
• M16: 11,441,096 km (0.114 R)
• M17: 12,141,962 km (0.117 R)
• M18: 12,527,326 km (0.058 R)
• M19: 14,045,445 km (0.065 R)
• M20: 15,123,148 km (0.113 R)
• M21: 16,664,455 km (0.057 R)
• M22: 17,200,614 km (0.095 R)
• M23: 18,119,892 km (0.044 R)
• M24: 21,212,230 km (0.111 R)
• M25: 21,771,577 km (0.118 R)
• M26: 23,286,405 km (0.104 R)
• M27: 26,283,747 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 243.7

Radius: 12.7

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 2.83 AU - 3.63 AU

Year: 3871 Days

Day: 6.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,156,557 km

• M1: 157,975 km (0.101 R)
• M2: 621,729 km (0.08 R)
• M3: 1,276,818 km (0.061 R)
• M4: 1,744,461 km (0.079 R)
• M5: 3,231,613 km (0.106 R)
• M6: 3,905,851 km (0.068 R)
• M7: 4,934,187 km (0.061 R)
• M8: 6,109,427 km (0.094 R)
• M9: 7,287,361 km (0.113 R)
• M10: 8,195,271 km (0.046 R)
• M11: 10,643,739 km (0.068 R)
• M12: 11,452,914 km (0.111 R)
• M13: 12,511,169 km (0.116 R)
• M14: 15,538,282 km (0.047 R)
• M15: 16,327,710 km (0.099 R)
• M16: 17,826,531 km (0.102 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.7

Radius: 13

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 4.51 AU - 5.15 AU

Year: 7079 Days

Day: 8.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 67,156,557 km

• M1: 161,715 km (0.089 R)
• M2: 758,611 km (0.098 R)
• M3: 1,407,417 km (0.027 R)
• M4: 2,013,438 km (0.095 R)
• M5: 2,586,697 km (0.088 R)
• M6: 3,003,476 km (0.074 R)
• M7: 4,202,204 km (0.071 R)
• M8: 5,472,739 km (0.103 R)
• M9: 6,077,114 km (0.029 R)
• M10: 6,693,906 km (0.088 R)
• M11: 7,732,415 km (0.09 R)
• M12: 8,532,614 km (0.091 R)
• M13: 9,347,025 km (0.032 R)
• M14: 12,587,015 km (0.094 R)
• M15: 13,902,729 km (0.115 R)
• M16: 18,910,517 km (0.09 R)
• M17: 20,908,247 km (0.057 R)
• M18: 22,315,963 km (0.107 R)
• M19: 22,896,403 km (0.088 R)
• M20: 23,936,407 km (0.054 R)
• M21: 24,621,416 km (0.113 R)
• M22: 25,476,368 km (0.102 R)
• M23: 26,431,550 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 347.7

Radius: 4.9

Gravity: 14.48 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 6.78 AU - 8.08 AU

Year: 13506 Days

Day: 20.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 67,156,557 km

• M1: 71,059 km (0.043 R)
• M2: 493,075 km (0.055 R)
• M3: 789,877 km (0.028 R)
• M4: 959,072 km (0.115 R)
• M5: 1,187,059 km (0.109 R)
• M6: 1,478,027 km (0.098 R)
• M7: 1,737,579 km (0.049 R)
• M8: 2,682,140 km (0.104 R)
• M9: 3,229,668 km (0.092 R)
• M10: 4,398,177 km (0.037 R)
• M11: 4,661,769 km (0.073 R)
• M12: 5,253,129 km (0.104 R)
• M13: 5,788,690 km (0.083 R)
• M14: 5,963,270 km (0.079 R)
• M15: 6,659,200 km (0.105 R)
• M16: 7,572,195 km (0.095 R)
• M17: 7,781,184 km (0.113 R)
• M18: 7,994,061 km (0.036 R)
• M19: 9,741,065 km (0.101 R)
• M20: 12,406,750 km (0.05 R)
• M21: 15,927,386 km (0.112 R)
• M22: 23,859,664 km (0.089 R)
• M23: 30,784,399 km (0.078 R)
• M24: 35,802,810 km (0.1 R)
• M25: 37,107,303 km (0.099 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 865.8

Radius: 7.6

Gravity: 14.99 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 6.67 AU - 9.09 AU

Year: 14751 Days

Day: 17.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,156,557 km

• M1: 94,695 km (0.119 R)
• M2: 623,075 km (0.04 R)
• M3: 2,111,724 km (0.069 R)
• M4: 4,483,747 km (0.116 R)
• M5: 5,170,252 km (0.117 R)
• M6: 5,501,162 km (0.088 R)
• M7: 7,236,348 km (0.1 R)
• M8: 11,497,195 km (0.108 R)
• M9: 13,044,186 km (0.064 R)
• M10: 15,391,377 km (0.109 R)
• M11: 20,536,496 km (0.084 R)
• M12: 21,838,896 km (0.091 R)
• M13: 22,413,651 km (0.104 R)
• M14: 27,049,988 km (0.074 R)
• M15: 29,185,946 km (0.082 R)
• M16: 32,164,440 km (0.098 R)
• M17: 38,301,244 km (0.08 R)
• M18: 45,020,881 km (0.07 R)
• M19: 48,657,605 km (0.046 R)
• M20: 65,956,654 km (0.044 R)
• M21: 66,554,746 km (0.063 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 333 - 12,123 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit