🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.7

Radius: 13.8

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.54 AU - 0.66 AU

Year: 327 Days

Day: 5.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,886,792 km

• M1: 171,589 km (0.087 R)
• M2: 612,304 km (0.092 R)
• M3: 1,101,938 km (0.068 R)
• M4: 1,706,762 km (0.09 R)
• M5: 2,206,569 km (0.118 R)
• M6: 2,864,051 km (0.08 R)
• M7: 3,781,834 km (0.066 R)
• M8: 4,277,003 km (0.094 R)
• M9: 5,078,997 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 943.2

Radius: 13.8

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.81 AU - 2.65 AU

Year: 2341 Days

Day: 8.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 52,886,792 km

• M1: 171,738 km (0.109 R)
• M2: 656,435 km (0.082 R)
• M3: 1,100,741 km (0.101 R)
• M4: 1,535,622 km (0.047 R)
• M5: 2,243,370 km (0.118 R)
• M6: 2,946,779 km (0.077 R)
• M7: 3,440,452 km (0.066 R)
• M8: 3,910,339 km (0.092 R)
• M9: 5,971,498 km (0.117 R)
• M10: 6,430,614 km (0.108 R)
• M11: 7,208,673 km (0.079 R)
• M12: 12,202,698 km (0.104 R)
• M13: 13,671,600 km (0.12 R)
• M14: 16,117,675 km (0.106 R)
• M15: 16,958,564 km (0.118 R)
• M16: 19,247,262 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.7

Radius: 11.5

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.24 AU - 2.46 AU

Year: 2532 Days

Day: 10.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,886,792 km

• M1: 143,016 km (0.084 R)
• M2: 937,380 km (0.096 R)
• M3: 1,483,263 km (0.11 R)
• M4: 2,953,810 km (0.085 R)
• M5: 4,097,635 km (0.058 R)
• M6: 4,572,309 km (0.069 R)
• M7: 6,761,076 km (0.106 R)
• M8: 7,426,188 km (0.048 R)
• M9: 8,727,689 km (0.102 R)
• M10: 9,102,881 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968.5

Radius: 14.7

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 3.32 AU - 5.38 AU

Year: 6377 Days

Day: 7.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 99.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,886,792 km

• M1: 183,108 km (0.112 R)
• M2: 665,561 km (0.098 R)
• M3: 1,647,970 km (0.086 R)
• M4: 2,359,906 km (0.053 R)
• M5: 3,679,210 km (0.037 R)
• M6: 4,653,541 km (0.084 R)
• M7: 5,142,427 km (0.113 R)
• M8: 7,002,377 km (0.037 R)
• M9: 9,776,819 km (0.088 R)
• M10: 11,693,766 km (0.067 R)
• M11: 16,065,914 km (0.118 R)
• M12: 21,112,747 km (0.095 R)
• M13: 23,448,269 km (0.098 R)
• M14: 24,549,160 km (0.084 R)
• M15: 26,854,314 km (0.11 R)
• M16: 27,684,881 km (0.096 R)
• M17: 31,585,047 km (0.076 R)
• M18: 36,506,668 km (0.093 R)
• M19: 39,032,029 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 276.4

Radius: 12.2

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 4.39 AU - 4.59 AU

Year: 6688 Days

Day: 6.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,886,792 km

• M1: 152,141 km (0.118 R)
• M2: 743,053 km (0.043 R)
• M3: 1,164,320 km (0.113 R)
• M4: 1,653,206 km (0.111 R)
• M5: 2,323,255 km (0.101 R)
• M6: 2,773,545 km (0.108 R)
• M7: 4,116,634 km (0.09 R)
• M8: 4,806,430 km (0.041 R)
• M9: 5,219,171 km (0.039 R)
• M10: 6,633,618 km (0.109 R)
• M11: 8,847,368 km (0.104 R)
• M12: 10,163,530 km (0.095 R)
• M13: 13,231,333 km (0.075 R)
• M14: 13,685,812 km (0.06 R)
• M15: 14,949,016 km (0.105 R)
• M16: 17,404,216 km (0.107 R)
• M17: 20,382,859 km (0.087 R)
• M18: 21,057,845 km (0.089 R)
• M19: 22,524,054 km (0.049 R)
• M20: 26,765,453 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 348.7

Radius: 10.7

Gravity: 3.05 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.77 AU - 5.95 AU

Year: 7531 Days

Day: 8.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 52,886,792 km

• M1: 133,441 km (0.085 R)
• M2: 502,050 km (0.119 R)
• M3: 1,298,061 km (0.051 R)
• M4: 1,850,526 km (0.025 R)
• M5: 3,492,811 km (0.074 R)
• M6: 3,936,219 km (0.119 R)
• M7: 4,268,925 km (0.077 R)
• M8: 5,128,365 km (0.094 R)
• M9: 8,364,466 km (0.113 R)
• M10: 9,161,673 km (0.095 R)
• M11: 10,184,473 km (0.056 R)
• M12: 11,187,527 km (0.094 R)
• M13: 11,957,358 km (0.068 R)
• M14: 13,710,196 km (0.079 R)
• M15: 14,091,371 km (0.077 R)
• M16: 17,274,216 km (0.086 R)
• M17: 17,783,297 km (0.105 R)
• M18: 18,965,420 km (0.078 R)
• M19: 19,302,912 km (0.078 R)
• M20: 20,339,476 km (0.1 R)
• M21: 21,632,002 km (0.095 R)
• M22: 24,300,529 km (0.11 R)
• M23: 25,345,320 km (0.107 R)
• M24: 27,870,383 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 820.4

Radius: 6.2

Gravity: 21.34 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 5 AU - 7.2 AU

Year: 10590 Days

Day: 20.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 52,886,792 km

• M1: 77,342 km (0.053 R)
• M2: 293,361 km (0.041 R)
• M3: 499,507 km (0.077 R)
• M4: 711,338 km (0.06 R)
• M5: 1,037,760 km (0.114 R)
• M6: 1,727,706 km (0.12 R)
• M7: 2,906,836 km (0.109 R)
• M8: 3,507,920 km (0.101 R)
• M9: 5,386,870 km (0.111 R)
• M10: 6,328,289 km (0.034 R)
• M11: 6,521,121 km (0.077 R)
• M12: 7,545,417 km (0.101 R)
• M13: 7,983,889 km (0.096 R)
• M14: 10,064,496 km (0.059 R)
• M15: 10,274,681 km (0.065 R)
• M16: 10,813,233 km (0.101 R)
• M17: 12,122,963 km (0.052 R)
• M18: 12,724,196 km (0.069 R)
• M19: 13,282,047 km (0.115 R)
• M20: 13,985,905 km (0.105 R)
• M21: 18,818,963 km (0.073 R)
• M22: 22,895,206 km (0.09 R)
• M23: 24,092,587 km (0.034 R)
• M24: 26,913,405 km (0.033 R)
• M25: 27,831,637 km (0.051 R)
• M26: 30,711,695 km (0.031 R)
• M27: 33,084,616 km (0.118 R)
• M28: 36,311,293 km (0.114 R)
• M29: 38,961,569 km (0.045 R)
• M30: 41,468,081 km (0.112 R)
• M31: 43,105,430 km (0.085 R)
• M32: 43,521,312 km (0.107 R)
• M33: 44,502,375 km (0.086 R)
• M34: 45,211,917 km (0.094 R)
• M35: 46,073,451 km (0.094 R)
• M36: 49,477,401 km (0.036 R)
• M37: 51,941,877 km (0.053 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 225 - 17,040 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit