🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.51 AU - 0.63 AU

Year: 274 Days

Day: 30.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 48.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 91,406,019 km

• M1: 32,912 km (0.102 R)
• M2: 364,720 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.3

Radius: 14

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.74 AU - 0.94 AU

Year: 489 Days

Day: 7.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 91,406,019 km

• M1: 174,132 km (0.048 R)
• M2: 622,477 km (0.084 R)
• M3: 1,437,486 km (0.06 R)
• M4: 3,124,800 km (0.105 R)
• M5: 3,636,275 km (0.093 R)
• M6: 4,179,017 km (0.055 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.3

Radius: 10.8

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.11 AU - 1.73 AU

Year: 1076 Days

Day: 8.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 91,406,019 km

• M1: 134,488 km (0.079 R)
• M2: 473,926 km (0.119 R)
• M3: 823,087 km (0.092 R)
• M4: 1,177,934 km (0.098 R)
• M5: 1,525,599 km (0.099 R)
• M6: 1,952,551 km (0.093 R)
• M7: 2,404,337 km (0.102 R)
• M8: 2,767,561 km (0.109 R)
• M9: 3,193,765 km (0.058 R)
• M10: 4,323,827 km (0.077 R)
• M11: 4,989,538 km (0.051 R)
• M12: 5,432,347 km (0.083 R)
• M13: 6,145,929 km (0.106 R)
• M14: 6,568,543 km (0.103 R)
• M15: 7,239,041 km (0.063 R)
• M16: 8,769,128 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.1

Radius: 12.8

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.35 AU - 1.81 AU

Year: 1263 Days

Day: 12.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 91,406,019 km

• M1: 159,172 km (0.108 R)
• M2: 729,738 km (0.084 R)
• M3: 1,876,556 km (0.06 R)
• M4: 3,625,355 km (0.086 R)
• M5: 4,502,148 km (0.07 R)
• M6: 4,971,885 km (0.078 R)
• M7: 5,432,796 km (0.119 R)
• M8: 6,747,612 km (0.053 R)
• M9: 7,939,009 km (0.11 R)
• M10: 8,430,738 km (0.055 R)
• M11: 10,967,469 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 538.2

Radius: 12.6

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.31 AU - 2.43 AU

Year: 2320 Days

Day: 6.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 91,406,019 km

• M1: 156,779 km (0.049 R)
• M2: 551,867 km (0.111 R)
• M3: 1,057,208 km (0.045 R)
• M4: 1,863,241 km (0.091 R)
• M5: 2,274,486 km (0.115 R)
• M6: 2,893,971 km (0.08 R)
• M7: 4,513,517 km (0.109 R)
• M8: 5,381,035 km (0.09 R)
• M9: 6,778,878 km (0.057 R)
• M10: 7,247,718 km (0.099 R)
• M11: 7,916,570 km (0.107 R)
• M12: 8,312,705 km (0.076 R)
• M13: 8,850,659 km (0.076 R)
• M14: 10,031,584 km (0.11 R)
• M15: 10,568,790 km (0.036 R)
• M16: 12,095,736 km (0.083 R)
• M17: 12,870,653 km (0.12 R)
• M18: 14,474,342 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 950.5

Radius: 5.6

Gravity: 30.31 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 7.15 AU - 8.29 AU

Year: 13638 Days

Day: 23.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 91,406,019 km

• M1: 75,996 km (0.117 R)
• M2: 265,835 km (0.059 R)
• M3: 731,534 km (0.073 R)
• M4: 911,201 km (0.069 R)
• M5: 1,108,221 km (0.072 R)
• M6: 1,638,545 km (0.044 R)
• M7: 2,651,173 km (0.103 R)
• M8: 2,983,281 km (0.081 R)
• M9: 3,237,298 km (0.074 R)
• M10: 3,965,690 km (0.097 R)
• M11: 4,696,476 km (0.096 R)
• M12: 6,546,403 km (0.095 R)
• M13: 7,287,959 km (0.106 R)
• M14: 7,749,618 km (0.102 R)
• M15: 8,329,011 km (0.112 R)
• M16: 8,578,839 km (0.091 R)
• M17: 8,782,143 km (0.07 R)
• M18: 12,686,797 km (0.077 R)
• M19: 13,151,598 km (0.06 R)
• M20: 17,126,413 km (0.12 R)
• M21: 19,735,400 km (0.107 R)
• M22: 20,449,431 km (0.104 R)
• M23: 24,482,589 km (0.066 R)
• M24: 24,686,790 km (0.111 R)
• M25: 26,901,138 km (0.079 R)
• M26: 27,557,274 km (0.105 R)
• M27: 29,129,847 km (0.105 R)
• M28: 29,589,860 km (0.086 R)
• M29: 31,599,259 km (0.063 R)
• M30: 40,263,220 km (0.104 R)
• M31: 44,981,537 km (0.095 R)
• M32: 50,384,563 km (0.118 R)
• M33: 54,796,653 km (0.085 R)
• M34: 58,360,822 km (0.08 R)
• M35: 60,571,879 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 595.3

Radius: 5.3

Gravity: 21.19 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 7.37 AU - 11.21 AU

Year: 18003 Days

Day: 22.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 91,406,019 km

• M1: 77,193 km (0.083 R)
• M2: 392,395 km (0.118 R)
• M3: 943,514 km (0.04 R)
• M4: 1,698,235 km (0.095 R)
• M5: 3,776,897 km (0.097 R)
• M6: 4,077,589 km (0.076 R)
• M7: 4,625,417 km (0.106 R)
• M8: 5,331,070 km (0.115 R)
• M9: 6,187,518 km (0.107 R)
• M10: 13,955,387 km (0.111 R)
• M11: 18,896,754 km (0.071 R)
• M12: 23,763,173 km (0.059 R)
• M13: 24,373,383 km (0.057 R)
• M14: 32,282,772 km (0.09 R)
• M15: 35,740,876 km (0.109 R)
• M16: 42,335,599 km (0.107 R)
• M17: 47,421,179 km (0.118 R)
• M18: 52,213,995 km (0.057 R)
• M19: 64,893,612 km (0.105 R)
• M20: 67,289,571 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 995

Radius: 3.1

Gravity: 103.54 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 8.45 AU - 12.69 AU

Year: 21850 Days

Day: 23.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 91,406,019 km

• M1: 38,596 km (0.075 R)
• M2: 230,231 km (0.097 R)
• M3: 334,800 km (0.073 R)
• M4: 645,664 km (0.05 R)
• M5: 758,611 km (0.083 R)
• M6: 1,224,309 km (0.105 R)
• M7: 1,349,522 km (0.112 R)
• M8: 1,877,154 km (0.111 R)
• M9: 2,131,470 km (0.108 R)
• M10: 2,313,381 km (0.081 R)
• M11: 3,922,456 km (0.088 R)
• M12: 4,372,895 km (0.106 R)
• M13: 4,895,441 km (0.074 R)
• M14: 10,017,223 km (0.109 R)
• M15: 16,170,183 km (0.079 R)
• M16: 19,773,996 km (0.078 R)
• M17: 22,452,247 km (0.105 R)
• M18: 23,322,607 km (0.1 R)
• M19: 24,215,258 km (0.089 R)
• M20: 26,306,337 km (0.119 R)
• M21: 30,578,553 km (0.086 R)
• M22: 33,576,045 km (0.117 R)
• M23: 35,874,916 km (0.103 R)
• M24: 36,614,378 km (0.11 R)
• M25: 37,666,500 km (0.025 R)
• M26: 39,830,882 km (0.037 R)
• M27: 42,568,672 km (0.111 R)
• M28: 44,915,414 km (0.109 R)
• M29: 48,236,188 km (0.07 R)
• M30: 50,785,186 km (0.092 R)
• M31: 51,342,887 km (0.102 R)
• M32: 65,541,520 km (0.042 R)
• M33: 66,867,705 km (0.11 R)
• M34: 68,890,418 km (0.105 R)
• M35: 74,005,767 km (0.069 R)
• M36: 75,926,903 km (0.06 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 372 - 16,177 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit