🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.7

Radius: 14.1

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.65 AU - 0.73 AU

Year: 364 Days

Day: 7.2 Hours

Environment

Temp: -138 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 63,013,448 km

• M1: 175,329 km (0.088 R)
• M2: 613,800 km (0.08 R)
• M3: 1,395,748 km (0.092 R)
• M4: 2,062,955 km (0.074 R)
• M5: 3,199,450 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.9

Radius: 9.5

Gravity: 10.47 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.91 AU - 1.41 AU

Year: 794 Days

Day: 6.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,013,448 km

• M1: 118,182 km (0.07 R)
• M2: 746,344 km (0.098 R)
• M3: 1,243,308 km (0.106 R)
• M4: 1,584,989 km (0.09 R)
• M5: 1,903,334 km (0.087 R)
• M6: 3,634,480 km (0.035 R)
• M7: 4,018,049 km (0.101 R)
• M8: 4,652,793 km (0.119 R)
• M9: 4,994,624 km (0.109 R)
• M10: 6,314,526 km (0.117 R)
• M11: 7,654,624 km (0.111 R)
• M12: 8,209,632 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 272.8

Radius: 8.6

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.94 AU - 1.46 AU

Year: 836 Days

Day: 12.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 63,013,448 km

• M1: 106,962 km (0.09 R)
• M2: 374,743 km (0.083 R)
• M3: 804,537 km (0.072 R)
• M4: 1,128,566 km (0.05 R)
• M5: 1,518,568 km (0.105 R)
• M6: 1,895,555 km (0.118 R)
• M7: 2,193,105 km (0.045 R)
• M8: 2,687,825 km (0.115 R)
• M9: 3,065,560 km (0.033 R)
• M10: 3,340,969 km (0.095 R)
• M11: 4,297,498 km (0.114 R)
• M12: 5,256,420 km (0.106 R)
• M13: 5,652,705 km (0.094 R)
• M14: 6,124,686 km (0.062 R)
• M15: 6,408,773 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.4

Radius: 14.8

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.29 AU - 2.01 AU

Year: 1348 Days

Day: 12.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,013,448 km

• M1: 185,053 km (0.116 R)
• M2: 688,749 km (0.109 R)
• M3: 1,151,455 km (0.065 R)
• M4: 2,033,633 km (0.095 R)
• M5: 2,495,592 km (0.094 R)
• M6: 3,934,574 km (0.073 R)
• M7: 5,182,220 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 985.7

Radius: 14.7

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.8 AU - 2.08 AU

Year: 1718 Days

Day: 11.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,013,448 km

• M1: 182,809 km (0.107 R)
• M2: 799,152 km (0.084 R)
• M3: 1,306,289 km (0.111 R)
• M4: 1,782,459 km (0.054 R)
• M5: 4,106,013 km (0.061 R)
• M6: 4,852,357 km (0.079 R)
• M7: 6,279,969 km (0.089 R)
• M8: 6,885,691 km (0.071 R)
• M9: 7,472,713 km (0.092 R)
• M10: 7,972,220 km (0.079 R)
• M11: 10,092,321 km (0.06 R)
• M12: 16,184,246 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.1

Radius: 11.4

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 3.49 AU - 4.41 AU

Year: 4991 Days

Day: 12.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 178.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 63,013,448 km

• M1: 142,866 km (0.095 R)
• M2: 847,173 km (0.111 R)
• M3: 1,386,922 km (0.044 R)
• M4: 2,611,081 km (0.068 R)
• M5: 3,437,460 km (0.111 R)
• M6: 4,344,322 km (0.059 R)
• M7: 4,740,158 km (0.056 R)
• M8: 5,453,740 km (0.078 R)
• M9: 7,367,097 km (0.072 R)
• M10: 9,618,545 km (0.096 R)
• M11: 14,445,918 km (0.098 R)
• M12: 17,214,077 km (0.095 R)
• M13: 20,378,820 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 326.8

Radius: 4.3

Gravity: 17.67 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 7.65 AU - 8.59 AU

Year: 14712 Days

Day: 24.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 63,013,448 km

• M1: 54,005 km (0.042 R)
• M2: 434,881 km (0.107 R)
• M3: 837,150 km (0.08 R)
• M4: 984,952 km (0.099 R)
• M5: 1,197,531 km (0.038 R)
• M6: 1,566,140 km (0.109 R)
• M7: 2,330,286 km (0.056 R)
• M8: 4,794,761 km (0.044 R)
• M9: 6,818,970 km (0.092 R)
• M10: 7,299,179 km (0.091 R)
• M11: 9,892,010 km (0.117 R)
• M12: 13,405,316 km (0.095 R)
• M13: 14,093,615 km (0.069 R)
• M14: 15,882,507 km (0.102 R)
• M15: 16,299,586 km (0.083 R)
• M16: 20,798,293 km (0.057 R)
• M17: 21,550,022 km (0.096 R)
• M18: 22,755,183 km (0.092 R)
• M19: 30,195,283 km (0.057 R)
• M20: 33,598,335 km (0.088 R)
• M21: 33,940,615 km (0.096 R)
• M22: 39,105,631 km (0.03 R)
• M23: 47,295,816 km (0.079 R)

Asteroid Belt

Center: 8.61 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 48.9

Radius: 4.4

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 7.22 AU - 10.96 AU

Year: 17425 Days

Day: 24.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,013,448 km

• M1: 54,902 km (0.109 R)
• M2: 251,773 km (0.075 R)
• M3: 886,218 km (0.117 R)
• M4: 1,245,103 km (0.049 R)
• M5: 1,785,899 km (0.109 R)
• M6: 3,000,484 km (0.104 R)
• M7: 3,647,046 km (0.102 R)
• M8: 4,914,739 km (0.05 R)
• M9: 5,691,002 km (0.062 R)
• M10: 7,274,944 km (0.09 R)
• M11: 7,838,330 km (0.096 R)
• M12: 8,893,145 km (0.071 R)
• M13: 9,495,575 km (0.089 R)
• M14: 9,954,392 km (0.093 R)
• M15: 10,826,099 km (0.057 R)
• M16: 14,440,383 km (0.091 R)
• M17: 15,441,043 km (0.089 R)
• M18: 17,394,193 km (0.101 R)
• M19: 21,356,293 km (0.035 R)
• M20: 25,243,145 km (0.111 R)
• M21: 27,519,426 km (0.092 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 412.8

Radius: 3.1

Gravity: 42.96 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 9.64 AU - 9.9 AU

Year: 19417 Days

Day: 16.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 63,013,448 km

• M1: 38,596 km (0.112 R)
• M2: 296,503 km (0.041 R)
• M3: 534,812 km (0.09 R)
• M4: 1,210,546 km (0.082 R)
• M5: 1,450,800 km (0.102 R)
• M6: 2,624,545 km (0.084 R)
• M7: 6,618,659 km (0.082 R)
• M8: 9,414,044 km (0.05 R)
• M9: 11,578,726 km (0.113 R)
• M10: 11,762,581 km (0.118 R)
• M11: 12,841,182 km (0.094 R)
• M12: 18,809,987 km (0.045 R)
• M13: 20,726,336 km (0.114 R)
• M14: 24,840,128 km (0.027 R)
• M15: 30,153,844 km (0.118 R)
• M16: 36,569,947 km (0.069 R)
• M17: 42,226,841 km (0.088 R)
• M18: 45,337,879 km (0.097 R)
• M19: 54,202,301 km (0.103 R)
• M20: 55,754,678 km (0.117 R)
• M21: 61,328,395 km (0.117 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 234 - 10,517 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit