🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.3

Radius: 8.7

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.81 AU - 1.23 AU

Year: 687 Days

Day: 9.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 21,415,823 km

• M1: 108,159 km (0.113 R)
• M2: 509,680 km (0.114 R)
• M3: 845,677 km (0.077 R)
• M4: 1,483,712 km (0.095 R)
• M5: 2,402,542 km (0.103 R)
• M6: 3,048,057 km (0.095 R)
• M7: 4,022,537 km (0.053 R)
• M8: 4,453,977 km (0.099 R)
• M9: 5,109,515 km (0.065 R)
• M10: 5,477,825 km (0.064 R)
• M11: 5,935,744 km (0.119 R)
• M12: 6,438,244 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 390.7

Radius: 9.2

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.95 AU - 1.99 AU

Year: 1844 Days

Day: 10.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 21,415,823 km

• M1: 115,340 km (0.118 R)
• M2: 776,712 km (0.085 R)
• M3: 1,136,345 km (0.108 R)
• M4: 1,473,689 km (0.112 R)
• M5: 1,919,341 km (0.095 R)
• M6: 2,214,796 km (0.102 R)
• M7: 2,857,469 km (0.115 R)
• M8: 3,230,416 km (0.081 R)
• M9: 3,817,289 km (0.068 R)
• M10: 4,198,763 km (0.111 R)
• M11: 4,586,671 km (0.101 R)
• M12: 4,938,076 km (0.076 R)
• M13: 6,171,211 km (0.117 R)
• M14: 6,673,711 km (0.107 R)
• M15: 7,359,617 km (0.055 R)
• M16: 7,924,947 km (0.095 R)
• M17: 9,142,524 km (0.104 R)
• M18: 10,215,889 km (0.069 R)
• M19: 10,988,263 km (0.111 R)
• M20: 11,944,193 km (0.113 R)
• M21: 12,423,654 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.7

Radius: 12.1

Gravity: 6.79 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 3.5 AU - 5.42 AU

Year: 6281 Days

Day: 13.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,415,823 km

• M1: 150,495 km (0.09 R)
• M2: 528,380 km (0.106 R)
• M3: 1,078,301 km (0.114 R)
• M4: 2,225,268 km (0.098 R)
• M5: 3,370,141 km (0.106 R)
• M6: 4,061,283 km (0.094 R)
• M7: 4,759,456 km (0.071 R)
• M8: 5,856,607 km (0.068 R)
• M9: 8,462,452 km (0.032 R)
• M10: 9,694,092 km (0.087 R)
• M11: 10,161,884 km (0.084 R)
• M12: 15,076,922 km (0.064 R)
• M13: 24,078,824 km (0.082 R)
• M14: 25,907,658 km (0.071 R)
• M15: 28,582,768 km (0.078 R)
• M16: 34,910,458 km (0.111 R)
• M17: 38,282,993 km (0.083 R)
• M18: 38,865,377 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 443.1

Radius: 9.3

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 4.4 AU - 5.18 AU

Year: 6991 Days

Day: 12.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 21,415,823 km

• M1: 115,639 km (0.106 R)
• M2: 462,108 km (0.068 R)
• M3: 770,429 km (0.095 R)
• M4: 1,684,921 km (0.045 R)
• M5: 3,262,131 km (0.031 R)
• M6: 3,850,649 km (0.105 R)
• M7: 4,932,391 km (0.1 R)
• M8: 5,708,206 km (0.114 R)
• M9: 7,073,735 km (0.057 R)
• M10: 7,907,893 km (0.088 R)
• M11: 8,368,355 km (0.085 R)
• M12: 8,968,991 km (0.05 R)
• M13: 9,727,452 km (0.082 R)
• M14: 11,085,801 km (0.099 R)
• M15: 11,761,235 km (0.077 R)
• M16: 12,825,474 km (0.056 R)
• M17: 13,515,569 km (0.098 R)
• M18: 15,028,004 km (0.116 R)
• M19: 16,157,916 km (0.078 R)
• M20: 16,464,442 km (0.1 R)
• M21: 23,442,435 km (0.085 R)
• M22: 24,959,806 km (0.099 R)
• M23: 28,812,999 km (0.104 R)
• M24: 29,811,864 km (0.049 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 532.3

Radius: 4.1

Gravity: 31.67 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 7.37 AU - 9.97 AU

Year: 17024 Days

Day: 22.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 21,415,823 km

• M1: 51,013 km (0.113 R)
• M2: 192,084 km (0.046 R)
• M3: 429,495 km (0.076 R)
• M4: 785,239 km (0.12 R)
• M5: 985,551 km (0.113 R)
• M6: 1,314,367 km (0.062 R)
• M7: 1,885,232 km (0.106 R)
• M8: 2,859,563 km (0.077 R)
• M9: 3,414,871 km (0.047 R)
• M10: 4,636,038 km (0.059 R)
• M11: 5,077,202 km (0.113 R)
• M12: 8,378,528 km (0.113 R)
• M13: 8,776,608 km (0.09 R)
• M14: 9,031,822 km (0.098 R)
• M15: 13,341,737 km (0.112 R)
• M16: 14,440,982 km (0.112 R)
• M17: 17,773,274 km (0.068 R)
• M18: 19,358,264 km (0.047 R)
• M19: 22,330,624 km (0.079 R)
• M20: 25,284,434 km (0.057 R)
• M21: 25,490,131 km (0.081 R)
• M22: 30,885,677 km (0.08 R)
• M23: 31,475,542 km (0.098 R)
• M24: 31,952,908 km (0.116 R)
• M25: 36,994,656 km (0.051 R)
• M26: 37,659,918 km (0.041 R)
• M27: 44,158,599 km (0.073 R)
• M28: 45,360,169 km (0.091 R)
• M29: 57,880,164 km (0.086 R)
• M30: 61,892,080 km (0.091 R)
• M31: 62,829,161 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 401.9

Radius: 7.5

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 8.48 AU - 9.52 AU

Year: 18005 Days

Day: 23.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 21,415,823 km

• M1: 131,048 km (0.069 R)
• M2: 690,843 km (0.117 R)
• M3: 1,480,421 km (0.101 R)
• M4: 1,859,801 km (0.112 R)
• M5: 3,719,901 km (0.051 R)
• M6: 4,150,144 km (0.063 R)
• M7: 4,581,136 km (0.091 R)
• M8: 5,389,263 km (0.084 R)
• M9: 7,684,543 km (0.073 R)
• M10: 9,378,440 km (0.116 R)
• M11: 10,787,951 km (0.078 R)
• M12: 14,020,911 km (0.08 R)
• M13: 19,068,642 km (0.108 R)
• M14: 19,319,368 km (0.12 R)
• M15: 22,133,155 km (0.064 R)
• M16: 24,414,672 km (0.107 R)
• M17: 34,243,401 km (0.096 R)
• M18: 35,489,552 km (0.06 R)
• M19: 38,870,912 km (0.068 R)
• M20: 40,363,899 km (0.054 R)
• M21: 43,175,741 km (0.087 R)
• M22: 46,115,638 km (0.061 R)
• M23: 49,658,265 km (0.055 R)
• M24: 55,221,212 km (0.045 R)
• M25: 57,279,678 km (0.032 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 16.7

Radius: 7.9

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 7.84 AU - 10.9 AU

Year: 19127 Days

Day: 19.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 21,415,823 km

• M1: 141,968 km (0.084 R)
• M2: 389,254 km (0.079 R)
• M3: 709,094 km (0.089 R)
• M4: 1,828,834 km (0.093 R)
• M5: 2,606,294 km (0.096 R)
• M6: 3,044,017 km (0.116 R)
• M7: 6,310,936 km (0.068 R)
• M8: 13,005,889 km (0.088 R)
• M9: 15,432,516 km (0.116 R)
• M10: 15,742,633 km (0.083 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 162 - 11,699 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit