🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.72

Radius: 1.24

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.4 AU - 0.66 AU

Year: 245 Days

Day: 28.1 Hours

Environment

Temp: -122 °C

Axial Tilt: 29.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 84,849,638 km

• M1: 44,431 km (0.096 R)
• M2: 211,531 km (0.044 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 333

Radius: 11.7

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.8 AU - 0.92 AU

Year: 507 Days

Day: 10.9 Hours

Environment

Temp: -156 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,849,638 km

• M1: 145,559 km (0.055 R)
• M2: 567,126 km (0.108 R)
• M3: 1,007,990 km (0.107 R)
• M4: 1,581,549 km (0.114 R)
• M5: 2,097,512 km (0.103 R)
• M6: 2,545,109 km (0.118 R)
• M7: 2,952,912 km (0.12 R)
• M8: 3,484,134 km (0.073 R)
• M9: 4,839,491 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.2

Radius: 8.4

Gravity: 9.5 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.31 AU - 2.55 AU

Year: 2408 Days

Day: 7.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,849,638 km

• M1: 121,174 km (0.06 R)
• M2: 437,723 km (0.105 R)
• M3: 768,634 km (0.037 R)
• M4: 1,157,888 km (0.079 R)
• M5: 1,510,490 km (0.106 R)
• M6: 1,945,969 km (0.069 R)
• M7: 2,988,517 km (0.114 R)
• M8: 3,269,611 km (0.11 R)
• M9: 4,684,358 km (0.097 R)
• M10: 4,951,091 km (0.118 R)
• M11: 5,418,285 km (0.042 R)
• M12: 5,812,924 km (0.084 R)
• M13: 6,306,448 km (0.119 R)
• M14: 6,632,272 km (0.103 R)
• M15: 9,766,347 km (0.107 R)
• M16: 10,883,095 km (0.072 R)
• M17: 11,234,052 km (0.104 R)
• M18: 12,459,109 km (0.098 R)
• M19: 13,367,916 km (0.116 R)
• M20: 16,410,737 km (0.083 R)
• M21: 18,201,573 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498.5

Radius: 9.5

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 2.43 AU - 2.95 AU

Year: 2805 Days

Day: 10.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 84,849,638 km

• M1: 118,182 km (0.046 R)
• M2: 459,714 km (0.111 R)
• M3: 885,171 km (0.085 R)
• M4: 1,328,579 km (0.036 R)
• M5: 1,703,321 km (0.106 R)
• M6: 2,611,081 km (0.119 R)
• M7: 3,122,706 km (0.063 R)
• M8: 3,464,387 km (0.107 R)
• M9: 4,063,527 km (0.08 R)
• M10: 5,371,910 km (0.045 R)
• M11: 6,414,757 km (0.046 R)
• M12: 7,831,748 km (0.119 R)
• M13: 8,498,954 km (0.103 R)
• M14: 8,964,503 km (0.085 R)
• M15: 10,767,157 km (0.107 R)
• M16: 11,194,109 km (0.111 R)
• M17: 13,103,277 km (0.113 R)
• M18: 16,614,788 km (0.11 R)
• M19: 17,132,995 km (0.115 R)
• M20: 17,984,506 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.7

Radius: 8

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.81 AU - 3.03 AU

Year: 3173 Days

Day: 11.4 Hours

Environment

Temp: -196 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,849,638 km

• M1: 99,632 km (0.095 R)
• M2: 357,988 km (0.091 R)
• M3: 698,622 km (0.059 R)
• M4: 1,480,720 km (0.12 R)
• M5: 2,121,597 km (0.109 R)
• M6: 2,372,473 km (0.1 R)
• M7: 2,920,749 km (0.114 R)
• M8: 3,768,520 km (0.099 R)
• M9: 4,121,122 km (0.119 R)
• M10: 4,750,929 km (0.108 R)
• M11: 5,941,279 km (0.076 R)
• M12: 6,273,686 km (0.038 R)
• M13: 6,568,394 km (0.101 R)
• M14: 7,265,520 km (0.119 R)
• M15: 7,954,119 km (0.078 R)
• M16: 9,176,483 km (0.089 R)
• M17: 9,429,004 km (0.088 R)
• M18: 10,147,074 km (0.07 R)
• M19: 11,582,166 km (0.035 R)
• M20: 12,329,258 km (0.06 R)
• M21: 12,598,085 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.9

Radius: 12.6

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 3 AU - 4.32 AU

Year: 4452 Days

Day: 6.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 84,849,638 km

• M1: 156,629 km (0.036 R)
• M2: 780,302 km (0.112 R)
• M3: 1,178,233 km (0.074 R)
• M4: 1,834,219 km (0.106 R)
• M5: 2,522,519 km (0.049 R)
• M6: 3,124,950 km (0.057 R)
• M7: 3,903,308 km (0.059 R)
• M8: 4,666,556 km (0.057 R)
• M9: 5,500,863 km (0.101 R)
• M10: 6,176,148 km (0.073 R)
• M11: 6,636,760 km (0.081 R)
• M12: 7,089,293 km (0.059 R)
• M13: 7,627,247 km (0.109 R)
• M14: 8,964,952 km (0.098 R)
• M15: 9,406,415 km (0.092 R)
• M16: 11,320,220 km (0.101 R)
• M17: 11,924,297 km (0.106 R)
• M18: 12,368,902 km (0.116 R)
• M19: 13,481,162 km (0.11 R)
• M20: 14,308,737 km (0.12 R)
• M21: 16,995,216 km (0.092 R)
• M22: 18,251,987 km (0.095 R)
• M23: 19,754,100 km (0.102 R)
• M24: 20,377,474 km (0.085 R)
• M25: 22,461,073 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.1

Radius: 11.1

Gravity: 7.87 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.97 AU - 4.63 AU

Year: 4710 Days

Day: 10.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 84,849,638 km

• M1: 142,417 km (0.058 R)
• M2: 527,632 km (0.114 R)
• M3: 1,191,248 km (0.077 R)
• M4: 1,664,576 km (0.062 R)
• M5: 2,077,615 km (0.111 R)
• M6: 2,845,800 km (0.115 R)
• M7: 3,214,559 km (0.086 R)
• M8: 3,659,463 km (0.042 R)
• M9: 4,366,612 km (0.118 R)
• M10: 4,833,208 km (0.117 R)
• M11: 5,419,482 km (0.082 R)
• M12: 6,534,435 km (0.072 R)
• M13: 7,323,265 km (0.12 R)
• M14: 7,870,942 km (0.072 R)
• M15: 11,363,005 km (0.118 R)
• M16: 11,751,062 km (0.032 R)
• M17: 12,248,774 km (0.074 R)
• M18: 13,179,872 km (0.059 R)
• M19: 13,717,227 km (0.056 R)
• M20: 16,875,687 km (0.104 R)
• M21: 17,832,515 km (0.112 R)
• M22: 18,357,454 km (0.084 R)
• M23: 18,892,565 km (0.106 R)
• M24: 20,489,373 km (0.03 R)
• M25: 24,029,008 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 610.7

Radius: 7.4

Gravity: 11.15 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 7.1 AU - 10.24 AU

Year: 16232 Days

Day: 21.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 84,849,638 km

• M1: 95,743 km (0.118 R)
• M2: 433,086 km (0.072 R)
• M3: 1,050,775 km (0.067 R)
• M4: 1,564,943 km (0.041 R)
• M5: 1,879,548 km (0.033 R)
• M6: 2,399,400 km (0.096 R)
• M7: 4,413,287 km (0.099 R)
• M8: 8,045,074 km (0.102 R)
• M9: 9,617,946 km (0.07 R)
• M10: 11,146,238 km (0.055 R)
• M11: 13,766,445 km (0.101 R)
• M12: 14,747,807 km (0.041 R)
• M13: 23,251,099 km (0.105 R)
• M14: 32,667,837 km (0.098 R)
• M15: 44,044,455 km (0.1 R)
• M16: 52,601,155 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 698.5

Radius: 5.1

Gravity: 26.86 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 8.73 AU - 13.35 AU

Year: 23323 Days

Day: 20.7 Hours

Environment

Temp: -240 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 84,849,638 km

• M1: 63,429 km (0.113 R)
• M2: 301,141 km (0.09 R)
• M3: 751,879 km (0.092 R)
• M4: 1,310,328 km (0.1 R)
• M5: 1,807,591 km (0.084 R)
• M6: 2,352,726 km (0.117 R)
• M7: 3,425,342 km (0.04 R)
• M8: 3,921,110 km (0.064 R)
• M9: 4,118,878 km (0.036 R)
• M10: 6,036,124 km (0.074 R)
• M11: 6,899,005 km (0.11 R)
• M12: 7,585,360 km (0.08 R)
• M13: 9,150,154 km (0.099 R)
• M14: 9,676,439 km (0.068 R)
• M15: 13,119,733 km (0.038 R)
• M16: 14,324,146 km (0.085 R)
• M17: 14,636,506 km (0.103 R)
• M18: 15,033,090 km (0.085 R)
• M19: 15,931,126 km (0.089 R)
• M20: 19,308,298 km (0.091 R)
• M21: 22,081,842 km (0.108 R)
• M22: 25,908,107 km (0.091 R)
• M23: 30,281,302 km (0.085 R)
• M24: 31,055,022 km (0.114 R)
• M25: 31,841,757 km (0.087 R)
• M26: 35,547,147 km (0.088 R)
• M27: 38,470,289 km (0.072 R)
• M28: 41,391,936 km (0.033 R)
• M29: 41,707,737 km (0.041 R)
• M30: 42,025,333 km (0.118 R)
• M31: 42,344,425 km (0.073 R)
• M32: 43,311,426 km (0.083 R)
• M33: 44,128,380 km (0.106 R)
• M34: 57,646,043 km (0.065 R)
• M35: 72,986,856 km (0.111 R)
• M36: 77,445,471 km (0.08 R)
• M37: 81,338,307 km (0.114 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 528 - 17,195 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit