🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.54 AU - 0.76 AU

Year: 338 Days

Day: 14 Hours

Environment

Temp: -142 °C

Axial Tilt: 3.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 88,402,599 km

• M1: 42,935 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680

Radius: 11.9

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.86 AU - 0.88 AU

Year: 524 Days

Day: 7.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 133.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 88,402,599 km

• M1: 147,952 km (0.092 R)
• M2: 548,426 km (0.11 R)
• M3: 927,806 km (0.101 R)
• M4: 1,405,771 km (0.115 R)
• M5: 1,816,567 km (0.118 R)
• M6: 2,601,956 km (0.083 R)
• M7: 3,183,891 km (0.114 R)
• M8: 3,692,375 km (0.105 R)
• M9: 4,197,267 km (0.111 R)
• M10: 4,670,894 km (0.115 R)
• M11: 6,500,775 km (0.055 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.6

Radius: 12.1

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.8 AU - 1.24 AU

Year: 665 Days

Day: 5.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,402,599 km

• M1: 150,495 km (0.059 R)
• M2: 559,646 km (0.084 R)
• M3: 954,883 km (0.112 R)
• M4: 1,331,720 km (0.048 R)
• M5: 2,088,237 km (0.057 R)
• M6: 2,489,458 km (0.1 R)
• M7: 3,051,797 km (0.109 R)
• M8: 3,463,939 km (0.101 R)
• M9: 3,972,123 km (0.097 R)
• M10: 4,354,046 km (0.101 R)
• M11: 5,264,050 km (0.067 R)
• M12: 6,460,534 km (0.116 R)
• M13: 6,861,306 km (0.104 R)
• M14: 7,901,460 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126

Radius: 13.2

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.43 AU - 1.53 AU

Year: 1163 Days

Day: 12.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 88,402,599 km

• M1: 167,400 km (0.093 R)
• M2: 729,439 km (0.119 R)
• M3: 1,263,803 km (0.085 R)
• M4: 1,679,834 km (0.03 R)
• M5: 2,477,640 km (0.105 R)
• M6: 3,590,349 km (0.109 R)
• M7: 4,218,062 km (0.1 R)
• M8: 4,855,498 km (0.028 R)
• M9: 5,728,850 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.1

Radius: 10.3

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.8 AU - 4.36 AU

Year: 4374 Days

Day: 11.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 88,402,599 km

• M1: 134,638 km (0.089 R)
• M2: 630,256 km (0.055 R)
• M3: 1,122,582 km (0.061 R)
• M4: 1,682,527 km (0.104 R)
• M5: 2,745,570 km (0.1 R)
• M6: 3,754,009 km (0.075 R)
• M7: 4,208,039 km (0.088 R)
• M8: 4,580,687 km (0.03 R)
• M9: 5,411,404 km (0.113 R)
• M10: 6,657,105 km (0.038 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 516.1

Radius: 5

Gravity: 20.64 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 5.84 AU - 7.54 AU

Year: 11173 Days

Day: 15.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 88,402,599 km

• M1: 62,233 km (0.098 R)
• M2: 335,698 km (0.114 R)
• M3: 521,797 km (0.085 R)
• M4: 2,418,549 km (0.052 R)
• M5: 2,738,688 km (0.104 R)
• M6: 2,952,613 km (0.053 R)
• M7: 5,479,172 km (0.113 R)
• M8: 7,084,207 km (0.091 R)
• M9: 8,210,679 km (0.08 R)
• M10: 9,451,743 km (0.09 R)
• M11: 9,792,826 km (0.101 R)
• M12: 11,567,506 km (0.043 R)
• M13: 15,671,125 km (0.053 R)
• M14: 27,662,142 km (0.105 R)
• M15: 30,206,652 km (0.072 R)
• M16: 32,132,426 km (0.116 R)
• M17: 35,872,971 km (0.026 R)
• M18: 38,521,601 km (0.111 R)
• M19: 40,273,243 km (0.116 R)
• M20: 43,532,083 km (0.118 R)
• M21: 45,294,196 km (0.101 R)
• M22: 45,845,763 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 271.9

Radius: 4.4

Gravity: 14.04 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 5.93 AU - 7.67 AU

Year: 11449 Days

Day: 17 Hours

Environment

Temp: -224 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 88,402,599 km

• M1: 54,902 km (0.117 R)
• M2: 218,413 km (0.109 R)
• M3: 487,390 km (0.071 R)
• M4: 795,711 km (0.097 R)
• M5: 945,907 km (0.075 R)
• M6: 1,136,345 km (0.093 R)
• M7: 1,777,073 km (0.076 R)
• M8: 2,303,508 km (0.079 R)
• M9: 2,500,229 km (0.083 R)
• M10: 3,115,675 km (0.065 R)
• M11: 3,447,184 km (0.079 R)
• M12: 4,000,995 km (0.105 R)
• M13: 4,365,715 km (0.114 R)
• M14: 5,012,875 km (0.064 R)
• M15: 6,116,758 km (0.058 R)
• M16: 6,565,252 km (0.105 R)
• M17: 7,146,889 km (0.11 R)
• M18: 9,097,346 km (0.087 R)
• M19: 10,433,404 km (0.038 R)
• M20: 11,737,599 km (0.06 R)
• M21: 13,891,957 km (0.119 R)
• M22: 14,908,475 km (0.092 R)
• M23: 17,155,435 km (0.092 R)
• M24: 18,324,243 km (0.076 R)
• M25: 19,325,651 km (0.111 R)
• M26: 25,757,313 km (0.091 R)
• M27: 30,623,283 km (0.117 R)
• M28: 31,021,063 km (0.112 R)
• M29: 32,440,747 km (0.097 R)
• M30: 34,543,046 km (0.113 R)
• M31: 37,522,886 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 747.6

Radius: 6.8

Gravity: 16.17 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 9.48 AU - 12.78 AU

Year: 23975 Days

Day: 15.5 Hours

Environment

Temp: -241 °C

Axial Tilt: 125.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 88,402,599 km

• M1: 84,523 km (0.061 R)
• M2: 321,785 km (0.093 R)
• M3: 749,485 km (0.037 R)
• M4: 1,201,720 km (0.087 R)
• M5: 1,618,948 km (0.085 R)
• M6: 2,044,105 km (0.042 R)
• M7: 2,260,873 km (0.094 R)
• M8: 2,565,753 km (0.05 R)
• M9: 3,060,772 km (0.04 R)
• M10: 5,124,625 km (0.047 R)
• M11: 6,082,949 km (0.12 R)
• M12: 8,349,057 km (0.098 R)
• M13: 8,850,360 km (0.074 R)
• M14: 9,669,857 km (0.049 R)
• M15: 11,257,389 km (0.036 R)
• M16: 18,688,364 km (0.119 R)
• M17: 22,485,158 km (0.111 R)
• M18: 27,125,984 km (0.119 R)
• M19: 27,367,434 km (0.026 R)
• M20: 29,605,419 km (0.06 R)
• M21: 30,377,643 km (0.111 R)
• M22: 35,009,642 km (0.047 R)
• M23: 38,854,008 km (0.106 R)
• M24: 39,314,919 km (0.094 R)
• M25: 43,298,860 km (0.105 R)
• M26: 44,293,536 km (0.043 R)
• M27: 44,796,634 km (0.077 R)
• M28: 45,643,358 km (0.112 R)
• M29: 47,020,406 km (0.057 R)
• M30: 50,766,486 km (0.118 R)
• M31: 58,041,879 km (0.111 R)
• M32: 61,510,306 km (0.101 R)
• M33: 63,189,243 km (0.116 R)
• M34: 67,078,189 km (0.063 R)
• M35: 74,616,875 km (0.04 R)
• M36: 75,806,178 km (0.081 R)
• M37: 78,712,116 km (0.113 R)
• M38: 86,039,420 km (0.063 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 473 - 13,497 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit