🌌 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: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.57 AU - 0.57 AU

Year: 278 Days

Day: 16.2 Hours

Environment

Temp: -124 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 578.5

Radius: 9.3

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.88 AU - 1.18 AU

Year: 675 Days

Day: 8.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,369,535 km

• M1: 115,789 km (0.11 R)
• M2: 463,604 km (0.092 R)
• M3: 1,045,540 km (0.095 R)
• M4: 1,449,454 km (0.058 R)
• M5: 1,912,459 km (0.07 R)
• M6: 2,310,090 km (0.091 R)
• M7: 2,663,141 km (0.119 R)
• M8: 2,980,738 km (0.075 R)
• M9: 3,831,351 km (0.049 R)
• M10: 4,625,267 km (0.119 R)
• M11: 4,985,349 km (0.117 R)
• M12: 6,102,396 km (0.094 R)
• M13: 6,556,725 km (0.108 R)
• M14: 7,012,101 km (0.036 R)
• M15: 7,422,448 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.7

Radius: 9.4

Gravity: 8.27 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 2.45 AU - 3.07 AU

Year: 2961 Days

Day: 11.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,369,535 km

• M1: 116,836 km (0.114 R)
• M2: 455,077 km (0.116 R)
• M3: 839,394 km (0.093 R)
• M4: 1,697,337 km (0.077 R)
• M5: 2,334,924 km (0.118 R)
• M6: 2,678,251 km (0.11 R)
• M7: 3,072,591 km (0.057 R)
• M8: 4,019,695 km (0.054 R)
• M9: 4,382,619 km (0.043 R)
• M10: 5,076,903 km (0.12 R)
• M11: 6,225,515 km (0.1 R)
• M12: 6,538,025 km (0.104 R)
• M13: 6,980,985 km (0.118 R)
• M14: 7,287,361 km (0.105 R)
• M15: 7,894,429 km (0.066 R)
• M16: 8,885,366 km (0.074 R)
• M17: 12,400,317 km (0.044 R)
• M18: 12,942,161 km (0.071 R)
• M19: 14,762,617 km (0.105 R)
• M20: 15,734,255 km (0.091 R)
• M21: 17,918,085 km (0.114 R)
• M22: 18,552,380 km (0.04 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.7

Radius: 13.6

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2.16 AU - 3.52 AU

Year: 3090 Days

Day: 7.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 64,369,535 km

• M1: 169,345 km (0.102 R)
• M2: 622,477 km (0.105 R)
• M3: 1,464,414 km (0.066 R)
• M4: 2,702,336 km (0.084 R)
• M5: 3,270,509 km (0.045 R)
• M6: 4,300,789 km (0.063 R)
• M7: 5,718,528 km (0.064 R)
• M8: 7,538,835 km (0.091 R)
• M9: 9,785,047 km (0.112 R)
• M10: 11,061,715 km (0.102 R)
• M11: 14,584,745 km (0.027 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 111.4

Radius: 6.4

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 5.81 AU - 7.37 AU

Year: 10923 Days

Day: 18.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 64,369,535 km

• M1: 90,357 km (0.079 R)
• M2: 350,807 km (0.107 R)
• M3: 612,154 km (0.119 R)
• M4: 928,105 km (0.117 R)
• M5: 1,515,576 km (0.093 R)
• M6: 1,958,835 km (0.085 R)
• M7: 3,216,803 km (0.059 R)
• M8: 3,707,035 km (0.094 R)
• M9: 4,060,685 km (0.074 R)
• M10: 4,558,846 km (0.083 R)
• M11: 4,861,183 km (0.08 R)
• M12: 5,619,195 km (0.053 R)
• M13: 7,784,176 km (0.052 R)
• M14: 7,998,549 km (0.119 R)
• M15: 9,570,524 km (0.058 R)
• M16: 11,706,333 km (0.087 R)
• M17: 14,893,964 km (0.109 R)
• M18: 18,050,329 km (0.11 R)
• M19: 18,300,607 km (0.112 R)
• M20: 18,871,921 km (0.106 R)
• M21: 19,259,379 km (0.062 R)
• M22: 20,050,154 km (0.097 R)
• M23: 27,419,195 km (0.106 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 956.6

Radius: 5.1

Gravity: 36.78 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 6.43 AU - 8.87 AU

Year: 13662 Days

Day: 23.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,369,535 km

• M1: 63,429 km (0.09 R)
• M2: 348,862 km (0.092 R)
• M3: 918,681 km (0.107 R)
• M4: 1,093,112 km (0.118 R)
• M5: 1,807,441 km (0.093 R)
• M6: 2,084,198 km (0.074 R)
• M7: 2,243,220 km (0.077 R)
• M8: 3,708,232 km (0.057 R)
• M9: 4,473,874 km (0.108 R)
• M10: 7,535,394 km (0.105 R)
• M11: 7,816,788 km (0.11 R)
• M12: 10,731,553 km (0.116 R)
• M13: 11,087,895 km (0.053 R)
• M14: 11,761,385 km (0.096 R)
• M15: 17,420,373 km (0.088 R)
• M16: 18,838,411 km (0.034 R)
• M17: 22,571,177 km (0.096 R)
• M18: 25,385,711 km (0.099 R)
• M19: 26,017,912 km (0.091 R)
• M20: 36,399,855 km (0.08 R)
• M21: 46,366,065 km (0.048 R)
• M22: 60,210,600 km (0.067 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 627.8

Radius: 5.7

Gravity: 19.32 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 8.07 AU - 9.11 AU

Year: 16256 Days

Day: 17.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 64,369,535 km

• M1: 70,909 km (0.076 R)
• M2: 608,714 km (0.092 R)
• M3: 822,938 km (0.119 R)
• M4: 1,087,726 km (0.083 R)
• M5: 1,267,393 km (0.117 R)
• M6: 2,509,953 km (0.085 R)
• M7: 3,571,350 km (0.071 R)
• M8: 6,167,621 km (0.108 R)
• M9: 7,361,113 km (0.091 R)
• M10: 8,204,994 km (0.098 R)
• M11: 9,972,344 km (0.109 R)
• M12: 10,652,266 km (0.071 R)
• M13: 15,321,066 km (0.114 R)
• M14: 15,693,565 km (0.112 R)
• M15: 16,148,641 km (0.041 R)
• M16: 27,633,270 km (0.119 R)
• M17: 28,631,985 km (0.097 R)
• M18: 31,532,538 km (0.111 R)
• M19: 32,378,365 km (0.06 R)
• M20: 32,745,478 km (0.065 R)
• M21: 37,909,447 km (0.111 R)
• M22: 40,683,739 km (0.083 R)
• M23: 42,411,744 km (0.099 R)
• M24: 45,094,483 km (0.1 R)
• M25: 45,859,377 km (0.065 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 491 - 11,151 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit