🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.6

Radius: 14.2

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.56 AU - 0.78 AU

Year: 379 Days

Day: 13.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 48,908,518 km

• M1: 177,273 km (0.065 R)
• M2: 938,727 km (0.119 R)
• M3: 1,493,436 km (0.096 R)
• M4: 2,449,067 km (0.079 R)
• M5: 3,110,140 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.4

Radius: 9.3

Gravity: 7.31 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.6 AU - 0.8 AU

Year: 404 Days

Day: 5.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 48,908,518 km

• M1: 115,789 km (0.063 R)
• M2: 492,027 km (0.067 R)
• M3: 1,025,793 km (0.029 R)
• M4: 1,331,271 km (0.115 R)
• M5: 1,914,554 km (0.062 R)
• M6: 2,296,477 km (0.082 R)
• M7: 3,137,666 km (0.069 R)
• M8: 3,467,679 km (0.086 R)
• M9: 3,758,347 km (0.109 R)
• M10: 4,052,158 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.2

Radius: 13.3

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.77 AU - 0.85 AU

Year: 503 Days

Day: 5.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 48,908,518 km

• M1: 165,455 km (0.072 R)
• M2: 709,094 km (0.059 R)
• M3: 1,198,728 km (0.09 R)
• M4: 1,642,136 km (0.088 R)
• M5: 2,235,890 km (0.111 R)
• M6: 3,736,356 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.2

Radius: 13.6

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.75 AU - 1.21 AU

Year: 670 Days

Day: 14.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 48,908,518 km

• M1: 169,195 km (0.113 R)
• M2: 662,868 km (0.109 R)
• M3: 1,105,379 km (0.114 R)
• M4: 1,707,061 km (0.086 R)
• M5: 2,391,172 km (0.032 R)
• M6: 3,317,931 km (0.117 R)
• M7: 3,895,379 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528

Radius: 11.2

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.8 AU - 1.26 AU

Year: 722 Days

Day: 9.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,908,518 km

• M1: 139,276 km (0.058 R)
• M2: 632,350 km (0.104 R)
• M3: 1,190,799 km (0.08 R)
• M4: 2,259,975 km (0.108 R)
• M5: 3,500,291 km (0.112 R)
• M6: 5,500,265 km (0.04 R)
• M7: 5,943,224 km (0.064 R)
• M8: 6,942,987 km (0.093 R)
• M9: 7,572,345 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.7

Radius: 9.4

Gravity: 8.02 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1 AU - 1.12 AU

Year: 753 Days

Day: 13.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,908,518 km

• M1: 118,182 km (0.105 R)
• M2: 858,542 km (0.06 R)
• M3: 1,176,737 km (0.082 R)
• M4: 1,663,678 km (0.047 R)
• M5: 2,311,437 km (0.088 R)
• M6: 2,799,126 km (0.108 R)
• M7: 3,408,139 km (0.058 R)
• M8: 3,861,420 km (0.093 R)
• M9: 4,180,512 km (0.119 R)
• M10: 4,566,774 km (0.114 R)
• M11: 6,294,031 km (0.1 R)
• M12: 6,630,178 km (0.072 R)
• M13: 8,418,919 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 412.2

Radius: 5.7

Gravity: 12.69 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 5.33 AU - 8.29 AU

Year: 12267 Days

Day: 21.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 48,908,518 km

• M1: 70,909 km (0.074 R)
• M2: 294,409 km (0.106 R)
• M3: 563,834 km (0.086 R)
• M4: 1,065,735 km (0.068 R)
• M5: 1,573,919 km (0.114 R)
• M6: 2,124,888 km (0.086 R)
• M7: 2,733,751 km (0.099 R)
• M8: 3,803,825 km (0.114 R)
• M9: 4,577,695 km (0.112 R)
• M10: 6,069,485 km (0.028 R)
• M11: 8,115,385 km (0.087 R)
• M12: 9,873,310 km (0.087 R)
• M13: 10,580,459 km (0.12 R)
• M14: 11,593,386 km (0.112 R)
• M15: 14,629,625 km (0.083 R)
• M16: 16,433,625 km (0.095 R)
• M17: 17,066,424 km (0.099 R)
• M18: 18,985,915 km (0.097 R)
• M19: 19,997,645 km (0.11 R)
• M20: 23,335,622 km (0.097 R)
• M21: 24,768,770 km (0.051 R)
• M22: 25,043,880 km (0.045 R)
• M23: 29,112,344 km (0.077 R)
• M24: 31,516,681 km (0.084 R)
• M25: 33,043,327 km (0.104 R)
• M26: 34,163,367 km (0.101 R)
• M27: 35,077,559 km (0.103 R)
• M28: 41,938,267 km (0.107 R)
• M29: 43,783,108 km (0.083 R)
• M30: 44,185,377 km (0.07 R)
• M31: 45,133,528 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 847.3

Radius: 6.5

Gravity: 20.05 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 5.83 AU - 9.09 AU

Year: 14064 Days

Day: 19.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 48,908,518 km

• M1: 84,373 km (0.088 R)
• M2: 950,545 km (0.114 R)
• M3: 1,294,919 km (0.112 R)
• M4: 2,870,484 km (0.103 R)
• M5: 4,271,618 km (0.114 R)
• M6: 4,658,178 km (0.097 R)
• M7: 5,032,921 km (0.11 R)
• M8: 5,317,756 km (0.102 R)
• M9: 6,077,563 km (0.091 R)
• M10: 6,907,382 km (0.076 R)
• M11: 7,716,707 km (0.093 R)
• M12: 8,144,407 km (0.05 R)
• M13: 9,684,667 km (0.07 R)
• M14: 12,217,060 km (0.085 R)
• M15: 12,863,622 km (0.114 R)
• M16: 13,195,280 km (0.093 R)
• M17: 13,669,206 km (0.086 R)
• M18: 17,310,418 km (0.095 R)
• M19: 19,482,729 km (0.077 R)
• M20: 20,634,034 km (0.096 R)
• M21: 31,645,186 km (0.088 R)
• M22: 32,985,582 km (0.111 R)
• M23: 34,363,379 km (0.073 R)
• M24: 36,832,941 km (0.05 R)
• M25: 37,636,730 km (0.119 R)
• M26: 39,002,259 km (0.111 R)
• M27: 43,148,663 km (0.12 R)
• M28: 44,041,763 km (0.059 R)
• M29: 44,795,287 km (0.073 R)
• M30: 46,951,142 km (0.092 R)
• M31: 58,411,536 km (0.076 R)
• M32: 60,981,926 km (0.078 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 193.6

Radius: 7.2

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 7.54 AU - 10.94 AU

Year: 19387 Days

Day: 17.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,908,518 km

• M1: 89,609 km (0.113 R)
• M2: 321,037 km (0.077 R)
• M3: 581,487 km (0.097 R)
• M4: 1,127,070 km (0.109 R)
• M5: 1,474,736 km (0.114 R)
• M6: 1,796,521 km (0.082 R)
• M7: 2,542,416 km (0.115 R)
• M8: 3,356,677 km (0.084 R)
• M9: 3,706,437 km (0.09 R)
• M10: 4,688,098 km (0.107 R)
• M11: 5,223,060 km (0.069 R)
• M12: 5,454,787 km (0.105 R)
• M13: 8,662,913 km (0.116 R)
• M14: 13,434,637 km (0.071 R)
• M15: 14,772,491 km (0.095 R)
• M16: 16,906,355 km (0.112 R)
• M17: 21,351,206 km (0.043 R)
• M18: 27,902,845 km (0.083 R)
• M19: 32,682,497 km (0.097 R)
• M20: 35,088,779 km (0.118 R)
• M21: 41,027,216 km (0.045 R)
• M22: 44,783,319 km (0.112 R)
• M23: 46,178,320 km (0.105 R)
• M24: 48,034,979 km (0.07 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: 221 - 12,139 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit