🌌 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: 1.82

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.56 AU - 0.58 AU

Year: 278 Days

Day: 46.2 Hours

Environment

Temp: -122 °C

Axial Tilt: 43.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.19

Radius: 0.51

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.55 AU - 0.69 AU

Year: 315 Days

Day: 35.7 Hours

Environment

Temp: -132 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722

Radius: 14.1

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.93 AU - 1.15 AU

Year: 685 Days

Day: 8.3 Hours

Environment

Temp: -164 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 47,894,391 km

• M1: 175,329 km (0.114 R)
• M2: 754,721 km (0.049 R)
• M3: 1,468,752 km (0.091 R)
• M4: 2,939,449 km (0.088 R)
• M5: 4,069,810 km (0.07 R)
• M6: 4,596,694 km (0.076 R)
• M7: 5,903,282 km (0.098 R)
• M8: 7,178,005 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.5

Radius: 9.3

Gravity: 10.42 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.04 AU - 1.5 AU

Year: 924 Days

Day: 14.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,894,391 km

• M1: 122,670 km (0.03 R)
• M2: 466,895 km (0.042 R)
• M3: 1,008,140 km (0.077 R)
• M4: 1,617,751 km (0.049 R)
• M5: 2,939,299 km (0.036 R)
• M6: 3,665,746 km (0.091 R)
• M7: 4,298,545 km (0.086 R)
• M8: 5,886,527 km (0.081 R)
• M9: 6,365,988 km (0.077 R)
• M10: 7,230,963 km (0.103 R)
• M11: 7,962,047 km (0.099 R)
• M12: 10,265,855 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.8

Radius: 9.2

Gravity: 9.56 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.86 AU - 3.98 AU

Year: 4084 Days

Day: 5 Hours

Environment

Temp: -208 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 47,894,391 km

• M1: 114,592 km (0.116 R)
• M2: 402,119 km (0.06 R)
• M3: 692,040 km (0.119 R)
• M4: 999,015 km (0.08 R)
• M5: 1,305,092 km (0.075 R)
• M6: 1,986,809 km (0.095 R)
• M7: 2,512,496 km (0.025 R)
• M8: 2,800,023 km (0.081 R)
• M9: 3,381,660 km (0.044 R)
• M10: 4,133,090 km (0.104 R)
• M11: 5,731,543 km (0.116 R)
• M12: 6,053,328 km (0.106 R)
• M13: 6,797,428 km (0.096 R)
• M14: 8,026,225 km (0.115 R)
• M15: 8,504,489 km (0.109 R)
• M16: 10,697,594 km (0.11 R)
• M17: 11,737,150 km (0.048 R)
• M18: 13,242,852 km (0.03 R)
• M19: 13,548,630 km (0.116 R)
• M20: 17,411,547 km (0.084 R)
• M21: 21,739,862 km (0.076 R)
• M22: 23,402,642 km (0.092 R)
• M23: 23,925,038 km (0.089 R)
• M24: 24,915,974 km (0.097 R)
• M25: 26,735,832 km (0.09 R)

Planet 6 - Ice Giant

Semi-Major Axis: 10.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 939.7

Radius: 5.3

Gravity: 33.45 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 10.38 AU - 10.86 AU

Year: 22346 Days

Day: 24.5 Hours

Environment

Temp: -241 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 47,894,391 km

• M1: 65,973 km (0.054 R)
• M2: 315,502 km (0.096 R)
• M3: 1,034,469 km (0.082 R)
• M4: 1,816,866 km (0.097 R)
• M5: 2,401,195 km (0.106 R)
• M6: 3,188,679 km (0.033 R)
• M7: 3,578,531 km (0.054 R)
• M8: 6,064,249 km (0.086 R)
• M9: 6,520,822 km (0.094 R)
• M10: 7,553,645 km (0.109 R)
• M11: 10,315,970 km (0.099 R)
• M12: 11,099,115 km (0.103 R)
• M13: 12,347,060 km (0.077 R)
• M14: 14,389,969 km (0.115 R)
• M15: 14,791,639 km (0.077 R)
• M16: 17,359,636 km (0.099 R)
• M17: 20,410,685 km (0.098 R)
• M18: 20,917,522 km (0.057 R)
• M19: 21,329,066 km (0.089 R)
• M20: 27,303,257 km (0.03 R)
• M21: 28,292,099 km (0.111 R)
• M22: 33,177,517 km (0.111 R)
• M23: 34,160,973 km (0.083 R)
• M24: 36,778,936 km (0.051 R)
• M25: 37,077,832 km (0.045 R)
• M26: 39,841,055 km (0.036 R)
• M27: 44,576,725 km (0.106 R)
• M28: 50,775,013 km (0.096 R)
• M29: 56,326,590 km (0.107 R)
• M30: 56,923,037 km (0.073 R)
• M31: 58,128,497 km (0.095 R)
• M32: 58,941,411 km (0.089 R)
• M33: 62,693,924 km (0.101 R)
• M34: 68,616,355 km (0.071 R)
• M35: 71,364,168 km (0.115 R)
• M36: 85,683,826 km (0.039 R)
• M37: 86,209,064 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 113.6

Radius: 6.8

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 9.21 AU - 13.39 AU

Year: 24526 Days

Day: 16.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,894,391 km

• M1: 177,872 km (0.067 R)
• M2: 496,515 km (0.117 R)
• M3: 1,771,688 km (0.109 R)
• M4: 2,467,168 km (0.109 R)
• M5: 2,770,553 km (0.081 R)
• M6: 3,551,304 km (0.026 R)
• M7: 4,074,448 km (0.079 R)
• M8: 4,326,071 km (0.066 R)
• M9: 5,572,670 km (0.118 R)
• M10: 6,426,575 km (0.119 R)
• M11: 7,283,172 km (0.092 R)
• M12: 9,364,677 km (0.073 R)
• M13: 11,314,386 km (0.089 R)
• M14: 11,700,947 km (0.094 R)
• M15: 23,656,659 km (0.107 R)
• M16: 26,930,459 km (0.095 R)
• M17: 27,224,419 km (0.117 R)
• M18: 30,282,648 km (0.114 R)
• M19: 35,404,730 km (0.111 R)
• M20: 47,322,893 km (0.068 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 506 - 20,011 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit