🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.8 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.6

Radius: 11.2

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.43 AU - 1.77 AU

Year: 1397 Days

Day: 6.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,194,234 km

• M1: 139,575 km (0.058 R)
• M2: 644,019 km (0.056 R)
• M3: 1,113,008 km (0.054 R)
• M4: 1,539,811 km (0.115 R)
• M5: 2,011,792 km (0.04 R)
• M6: 2,854,327 km (0.108 R)
• M7: 3,495,354 km (0.048 R)
• M8: 3,850,649 km (0.117 R)
• M9: 4,826,925 km (0.118 R)
• M10: 5,738,574 km (0.112 R)
• M11: 6,423,583 km (0.055 R)
• M12: 6,909,776 km (0.039 R)
• M13: 7,342,413 km (0.085 R)
• M14: 7,820,079 km (0.09 R)
• M15: 8,633,443 km (0.111 R)
• M16: 9,440,374 km (0.118 R)
• M17: 10,166,970 km (0.088 R)
• M18: 11,308,701 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.6

Radius: 14.1

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.63 AU - 1.91 AU

Year: 1625 Days

Day: 15 Hours

Environment

Temp: -188 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 54,194,234 km

• M1: 213,775 km (0.087 R)
• M2: 3,695,965 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.1

Radius: 10.8

Gravity: 7.64 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.49 AU - 2.37 AU

Year: 1851 Days

Day: 14.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,194,234 km

• M1: 134,339 km (0.113 R)
• M2: 712,983 km (0.099 R)
• M3: 1,229,545 km (0.117 R)
• M4: 1,701,526 km (0.107 R)
• M5: 2,254,290 km (0.11 R)
• M6: 2,908,781 km (0.029 R)
• M7: 3,457,805 km (0.093 R)
• M8: 3,849,153 km (0.099 R)
• M9: 7,831,000 km (0.095 R)
• M10: 9,532,227 km (0.054 R)
• M11: 11,235,997 km (0.106 R)
• M12: 13,870,715 km (0.096 R)
• M13: 15,426,084 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.3

Radius: 14.6

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.72 AU - 2.82 AU

Year: 3182 Days

Day: 7.5 Hours

Environment

Temp: -219 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,194,234 km

• M1: 181,612 km (0.081 R)
• M2: 662,719 km (0.061 R)
• M3: 1,251,685 km (0.097 R)
• M4: 1,760,468 km (0.102 R)
• M5: 2,932,866 km (0.087 R)
• M6: 3,648,842 km (0.098 R)
• M7: 4,498,558 km (0.118 R)
• M8: 5,301,001 km (0.107 R)
• M9: 5,864,386 km (0.091 R)
• M10: 6,694,804 km (0.041 R)
• M11: 7,463,887 km (0.092 R)
• M12: 8,410,243 km (0.106 R)
• M13: 9,306,484 km (0.088 R)
• M14: 9,827,832 km (0.108 R)
• M15: 10,437,593 km (0.062 R)
• M16: 11,921,305 km (0.103 R)
• M17: 13,874,305 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.7

Radius: 10.4

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 2.93 AU - 4.71 AU

Year: 5154 Days

Day: 8.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 54,194,234 km

• M1: 129,701 km (0.1 R)
• M2: 489,035 km (0.045 R)
• M3: 908,209 km (0.087 R)
• M4: 1,600,697 km (0.076 R)
• M5: 1,992,644 km (0.072 R)
• M6: 3,382,408 km (0.086 R)
• M7: 4,515,612 km (0.095 R)
• M8: 4,960,965 km (0.084 R)
• M9: 6,920,996 km (0.05 R)
• M10: 8,983,053 km (0.115 R)
• M11: 10,352,621 km (0.096 R)
• M12: 11,087,446 km (0.103 R)
• M13: 13,030,124 km (0.12 R)
• M14: 19,586,999 km (0.061 R)
• M15: 21,030,020 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.2

Radius: 8.7

Gravity: 9.55 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 4.25 AU - 5.85 AU

Year: 7833 Days

Day: 14 Hours

Environment

Temp: -224 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 54,194,234 km

• M1: 108,309 km (0.109 R)
• M2: 731,534 km (0.103 R)
• M3: 1,065,735 km (0.113 R)
• M4: 1,763,011 km (0.099 R)
• M5: 2,054,278 km (0.1 R)
• M6: 2,980,139 km (0.101 R)
• M7: 4,856,695 km (0.113 R)
• M8: 5,155,891 km (0.11 R)
• M9: 5,824,593 km (0.109 R)
• M10: 6,658,302 km (0.116 R)
• M11: 7,931,530 km (0.107 R)
• M12: 8,347,561 km (0.1 R)
• M13: 10,014,829 km (0.042 R)
• M14: 11,732,811 km (0.106 R)
• M15: 12,273,309 km (0.109 R)
• M16: 13,115,245 km (0.075 R)
• M17: 15,102,354 km (0.104 R)
• M18: 16,668,045 km (0.083 R)
• M19: 17,282,144 km (0.089 R)
• M20: 17,982,113 km (0.112 R)
• M21: 18,555,521 km (0.067 R)
• M22: 24,104,855 km (0.083 R)
• M23: 25,423,111 km (0.1 R)
• M24: 27,916,010 km (0.081 R)
• M25: 33,382,017 km (0.098 R)
• M26: 36,025,112 km (0.111 R)
• M27: 39,281,259 km (0.102 R)
• M28: 41,227,528 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.1

Radius: 11.7

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 5.21 AU - 5.79 AU

Year: 8903 Days

Day: 13.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 54,194,234 km

• M1: 147,354 km (0.062 R)
• M2: 603,627 km (0.113 R)
• M3: 1,120,638 km (0.064 R)
• M4: 1,813,725 km (0.083 R)
• M5: 2,756,939 km (0.047 R)
• M6: 3,296,389 km (0.113 R)
• M7: 5,173,094 km (0.032 R)
• M8: 5,590,173 km (0.045 R)
• M9: 5,965,664 km (0.093 R)
• M10: 7,946,340 km (0.085 R)
• M11: 9,387,566 km (0.04 R)
• M12: 9,874,656 km (0.11 R)
• M13: 10,378,651 km (0.113 R)
• M14: 13,547,134 km (0.08 R)
• M15: 13,998,172 km (0.075 R)
• M16: 19,359,760 km (0.116 R)
• M17: 20,223,239 km (0.102 R)
• M18: 24,846,112 km (0.066 R)
• M19: 25,522,893 km (0.105 R)
• M20: 26,560,952 km (0.039 R)
• M21: 27,447,320 km (0.108 R)
• M22: 28,813,597 km (0.11 R)
• M23: 29,560,689 km (0.068 R)
• M24: 30,898,991 km (0.116 R)
• M25: 32,377,168 km (0.087 R)
• M26: 34,212,734 km (0.05 R)
• M27: 35,262,013 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 223.5

Radius: 6

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 8.28 AU - 11.24 AU

Year: 21047 Days

Day: 22.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,194,234 km

• M1: 79,287 km (0.074 R)
• M2: 1,004,101 km (0.1 R)
• M3: 1,864,737 km (0.099 R)
• M4: 4,027,175 km (0.103 R)
• M5: 4,498,707 km (0.116 R)
• M6: 5,765,502 km (0.106 R)
• M7: 9,426,910 km (0.102 R)
• M8: 11,076,974 km (0.118 R)
• M9: 14,800,465 km (0.073 R)
• M10: 15,918,410 km (0.06 R)
• M11: 20,023,226 km (0.096 R)
• M12: 25,955,231 km (0.086 R)
• M13: 29,049,513 km (0.08 R)
• M14: 33,310,808 km (0.093 R)
• M15: 39,396,450 km (0.093 R)
• M16: 44,170,267 km (0.111 R)
• M17: 46,916,435 km (0.053 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 281 - 14,674 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit