🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.4

Radius: 8.4

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.41 AU - 0.61 AU

Year: 251 Days

Day: 13.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 73.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 51,755,379 km

• M1: 104,719 km (0.062 R)
• M2: 379,380 km (0.108 R)
• M3: 674,537 km (0.106 R)
• M4: 941,569 km (0.045 R)
• M5: 1,242,859 km (0.071 R)
• M6: 1,860,100 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 65.7

Radius: 14.4

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.57 AU - 0.95 AU

Year: 457 Days

Day: 9.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 51,755,379 km

• M1: 184,753 km (0.082 R)
• M2: 702,362 km (0.095 R)
• M3: 1,464,414 km (0.039 R)
• M4: 2,360,954 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610

Radius: 8.9

Gravity: 7.7 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.81 AU - 1.23 AU

Year: 711 Days

Day: 13.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 51,755,379 km

• M1: 110,702 km (0.091 R)
• M2: 428,448 km (0.1 R)
• M3: 705,504 km (0.113 R)
• M4: 1,158,187 km (0.12 R)
• M5: 1,864,737 km (0.056 R)
• M6: 2,553,785 km (0.092 R)
• M7: 2,880,357 km (0.056 R)
• M8: 3,247,620 km (0.094 R)
• M9: 3,885,954 km (0.064 R)
• M10: 4,461,158 km (0.066 R)
• M11: 5,074,659 km (0.107 R)
• M12: 5,631,163 km (0.09 R)
• M13: 6,030,739 km (0.091 R)
• M14: 6,994,000 km (0.116 R)
• M15: 7,322,068 km (0.099 R)
• M16: 7,821,725 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 959.2

Radius: 11.6

Gravity: 7.13 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.93 AU - 1.19 AU

Year: 753 Days

Day: 14.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 51,755,379 km

• M1: 144,212 km (0.099 R)
• M2: 576,550 km (0.112 R)
• M3: 980,016 km (0.1 R)
• M4: 1,371,962 km (0.105 R)
• M5: 1,816,417 km (0.088 R)
• M6: 2,251,149 km (0.077 R)
• M7: 2,779,528 km (0.061 R)
• M8: 3,602,317 km (0.09 R)
• M9: 4,580,537 km (0.09 R)
• M10: 5,688,160 km (0.107 R)
• M11: 6,966,324 km (0.056 R)
• M12: 7,432,321 km (0.079 R)
• M13: 8,715,722 km (0.105 R)
• M14: 9,312,916 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.9

Radius: 13.8

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 4.75 AU - 5.41 AU

Year: 7903 Days

Day: 7.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,755,379 km

• M1: 383,719 km (0.056 R)
• M2: 873,053 km (0.067 R)
• M3: 1,313,021 km (0.112 R)
• M4: 1,842,597 km (0.11 R)
• M5: 4,569,766 km (0.091 R)
• M6: 6,433,905 km (0.081 R)
• M7: 8,875,941 km (0.048 R)
• M8: 9,867,176 km (0.117 R)
• M9: 10,625,638 km (0.107 R)
• M10: 11,108,091 km (0.103 R)
• M11: 11,697,058 km (0.104 R)
• M12: 13,641,231 km (0.117 R)
• M13: 14,636,656 km (0.074 R)
• M14: 16,364,062 km (0.099 R)
• M15: 18,348,478 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.9

Radius: 13.4

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 4.02 AU - 6.62 AU

Year: 8470 Days

Day: 13.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,755,379 km

• M1: 166,802 km (0.097 R)
• M2: 654,491 km (0.063 R)
• M3: 1,500,915 km (0.103 R)
• M4: 2,336,569 km (0.073 R)
• M5: 3,224,582 km (0.089 R)
• M6: 4,024,183 km (0.103 R)
• M7: 5,273,624 km (0.111 R)
• M8: 5,781,958 km (0.095 R)
• M9: 6,670,270 km (0.088 R)
• M10: 8,603,224 km (0.095 R)
• M11: 9,970,997 km (0.114 R)
• M12: 10,840,759 km (0.042 R)
• M13: 11,619,267 km (0.083 R)
• M14: 12,632,044 km (0.08 R)
• M15: 13,288,031 km (0.088 R)
• M16: 16,083,417 km (0.115 R)
• M17: 18,987,560 km (0.093 R)
• M18: 19,781,775 km (0.031 R)
• M19: 21,436,627 km (0.052 R)
• M20: 27,285,904 km (0.116 R)
• M21: 28,297,484 km (0.076 R)
• M22: 28,812,550 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 518.7

Radius: 6.5

Gravity: 12.28 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 6.65 AU - 7.43 AU

Year: 12893 Days

Day: 17.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 51,755,379 km

• M1: 80,783 km (0.116 R)
• M2: 525,986 km (0.105 R)
• M3: 2,129,825 km (0.077 R)
• M4: 4,132,192 km (0.106 R)
• M5: 6,272,639 km (0.095 R)
• M6: 7,905,350 km (0.108 R)
• M7: 8,631,348 km (0.09 R)
• M8: 10,911,070 km (0.104 R)
• M9: 11,752,409 km (0.113 R)
• M10: 13,882,533 km (0.079 R)
• M11: 15,004,666 km (0.086 R)
• M12: 21,620,483 km (0.115 R)
• M13: 25,269,324 km (0.097 R)
• M14: 27,849,140 km (0.071 R)
• M15: 40,714,108 km (0.108 R)
• M16: 41,779,843 km (0.114 R)
• M17: 42,049,119 km (0.085 R)
• M18: 42,727,545 km (0.065 R)
• M19: 49,917,369 km (0.113 R)
• M20: 51,291,724 km (0.118 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: 419 - 11,746 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit