🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.9

Radius: 11.6

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.55 AU - 0.57 AU

Year: 279 Days

Day: 11.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 68,189,166 km

• M1: 144,212 km (0.114 R)
• M2: 510,428 km (0.051 R)
• M3: 1,193,941 km (0.109 R)
• M4: 1,557,763 km (0.048 R)
• M5: 1,990,250 km (0.093 R)
• M6: 2,536,282 km (0.113 R)
• M7: 2,941,992 km (0.109 R)
• M8: 3,494,756 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.8

Radius: 8

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.8 AU - 0.84 AU

Year: 495 Days

Day: 9.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,189,166 km

• M1: 99,483 km (0.086 R)
• M2: 373,097 km (0.048 R)
• M3: 629,508 km (0.074 R)
• M4: 900,130 km (0.119 R)
• M5: 1,289,683 km (0.093 R)
• M6: 1,540,858 km (0.116 R)
• M7: 1,803,253 km (0.118 R)
• M8: 2,375,016 km (0.105 R)
• M9: 2,757,238 km (0.059 R)
• M10: 3,597,829 km (0.032 R)
• M11: 4,380,226 km (0.106 R)
• M12: 4,669,398 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.1

Radius: 9.6

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.85 AU - 0.97 AU

Year: 579 Days

Day: 13.5 Hours

Environment

Temp: -171 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 68,189,166 km

• M1: 119,379 km (0.114 R)
• M2: 782,995 km (0.075 R)
• M3: 1,276,519 km (0.048 R)
• M4: 1,623,137 km (0.085 R)
• M5: 2,019,870 km (0.103 R)
• M6: 2,511,000 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.3

Radius: 15

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.74 AU - 2.04 AU

Year: 1733 Days

Day: 11.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,189,166 km

• M1: 188,493 km (0.115 R)
• M2: 738,265 km (0.106 R)
• M3: 1,267,992 km (0.07 R)
• M4: 1,821,504 km (0.097 R)
• M5: 3,502,535 km (0.053 R)
• M6: 4,500,652 km (0.11 R)
• M7: 6,208,012 km (0.117 R)
• M8: 8,589,461 km (0.106 R)
• M9: 10,226,361 km (0.052 R)
• M10: 11,045,858 km (0.099 R)
• M11: 11,870,292 km (0.117 R)
• M12: 12,695,175 km (0.057 R)
• M13: 13,183,462 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.4

Radius: 14.7

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.34 AU - 3.42 AU

Year: 3259 Days

Day: 11.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,189,166 km

• M1: 182,958 km (0.097 R)
• M2: 701,165 km (0.11 R)
• M3: 1,405,771 km (0.095 R)
• M4: 3,528,116 km (0.08 R)
• M5: 4,410,744 km (0.025 R)
• M6: 4,959,768 km (0.106 R)
• M7: 5,483,360 km (0.095 R)
• M8: 8,174,327 km (0.115 R)
• M9: 9,444,263 km (0.104 R)
• M10: 11,068,746 km (0.105 R)
• M11: 12,915,233 km (0.092 R)
• M12: 13,956,434 km (0.088 R)
• M13: 14,819,913 km (0.059 R)
• M14: 15,767,017 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258

Radius: 13.2

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.74 AU - 4.1 AU

Year: 4218 Days

Day: 6.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,189,166 km

• M1: 192,832 km (0.116 R)
• M2: 649,704 km (0.099 R)
• M3: 1,206,806 km (0.081 R)
• M4: 1,688,212 km (0.061 R)
• M5: 3,554,296 km (0.078 R)
• M6: 4,375,588 km (0.117 R)
• M7: 5,037,110 km (0.066 R)
• M8: 6,396,057 km (0.112 R)
• M9: 6,899,603 km (0.081 R)
• M10: 7,766,673 km (0.093 R)
• M11: 10,196,740 km (0.064 R)
• M12: 11,852,639 km (0.081 R)
• M13: 12,357,083 km (0.089 R)
• M14: 13,007,834 km (0.117 R)
• M15: 13,454,234 km (0.093 R)
• M16: 14,711,006 km (0.104 R)
• M17: 16,454,868 km (0.074 R)
• M18: 17,619,338 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 611.6

Radius: 4.9

Gravity: 25.47 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 7.17 AU - 7.65 AU

Year: 13451 Days

Day: 17.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 68,189,166 km

• M1: 72,405 km (0.096 R)
• M2: 225,294 km (0.106 R)
• M3: 377,735 km (0.119 R)
• M4: 537,954 km (0.103 R)
• M5: 1,014,573 km (0.097 R)
• M6: 1,242,111 km (0.092 R)
• M7: 1,402,929 km (0.057 R)
• M8: 1,867,580 km (0.12 R)
• M9: 2,953,062 km (0.093 R)
• M10: 4,978,468 km (0.068 R)
• M11: 6,430,764 km (0.098 R)
• M12: 7,915,074 km (0.098 R)
• M13: 9,821,998 km (0.064 R)
• M14: 11,835,735 km (0.098 R)
• M15: 12,075,241 km (0.086 R)
• M16: 12,687,994 km (0.098 R)
• M17: 14,108,874 km (0.063 R)
• M18: 14,650,867 km (0.076 R)
• M19: 15,632,678 km (0.054 R)
• M20: 20,856,337 km (0.082 R)
• M21: 21,559,148 km (0.117 R)
• M22: 22,459,876 km (0.108 R)
• M23: 23,012,042 km (0.074 R)
• M24: 27,865,895 km (0.076 R)
• M25: 30,028,781 km (0.115 R)
• M26: 32,534,395 km (0.092 R)
• M27: 33,359,876 km (0.113 R)
• M28: 33,837,842 km (0.083 R)
• M29: 36,548,705 km (0.06 R)
• M30: 39,400,638 km (0.073 R)
• M31: 43,099,296 km (0.112 R)
• M32: 43,808,689 km (0.085 R)
• M33: 47,623,585 km (0.067 R)
• M34: 49,456,607 km (0.104 R)
• M35: 54,904,812 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 687.6

Radius: 3.7

Gravity: 50.23 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 8.21 AU - 9.07 AU

Year: 16936 Days

Day: 16.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 68,189,166 km

• M1: 48,021 km (0.11 R)
• M2: 185,651 km (0.1 R)
• M3: 543,489 km (0.052 R)
• M4: 1,328,579 km (0.038 R)
• M5: 1,640,191 km (0.099 R)
• M6: 2,562,312 km (0.046 R)
• M7: 2,677,353 km (0.11 R)
• M8: 2,967,723 km (0.1 R)
• M9: 3,726,483 km (0.037 R)
• M10: 4,506,037 km (0.03 R)
• M11: 5,277,065 km (0.092 R)
• M12: 8,615,192 km (0.071 R)
• M13: 9,408,060 km (0.072 R)
• M14: 10,657,352 km (0.068 R)
• M15: 12,401,813 km (0.088 R)
• M16: 12,866,015 km (0.082 R)
• M17: 13,410,402 km (0.106 R)
• M18: 13,618,493 km (0.115 R)
• M19: 14,912,664 km (0.083 R)
• M20: 16,923,259 km (0.111 R)
• M21: 23,519,478 km (0.099 R)
• M22: 24,332,243 km (0.102 R)
• M23: 29,489,331 km (0.087 R)
• M24: 31,520,720 km (0.091 R)
• M25: 36,394,320 km (0.059 R)
• M26: 36,528,958 km (0.074 R)
• M27: 39,009,440 km (0.053 R)
• M28: 40,723,981 km (0.114 R)
• M29: 43,843,994 km (0.048 R)
• M30: 46,167,698 km (0.099 R)
• M31: 47,600,696 km (0.027 R)
• M32: 50,054,251 km (0.025 R)
• M33: 52,935,356 km (0.107 R)
• M34: 57,370,185 km (0.081 R)
• M35: 58,839,984 km (0.116 R)
• M36: 62,817,193 km (0.12 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 378 - 18,081 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit