🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.59 AU - 0.63 AU

Year: 313 Days

Day: 26.7 Hours

Environment

Temp: -122 °C

Axial Tilt: 11.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.3

Radius: 11.7

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.86 AU - 1.06 AU

Year: 617 Days

Day: 9.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 86,022,197 km

• M1: 148,999 km (0.099 R)
• M2: 602,131 km (0.113 R)
• M3: 1,006,644 km (0.074 R)
• M4: 1,408,314 km (0.079 R)
• M5: 1,800,111 km (0.06 R)
• M6: 2,248,456 km (0.081 R)
• M7: 3,131,682 km (0.058 R)
• M8: 3,999,200 km (0.084 R)
• M9: 4,657,431 km (0.095 R)
• M10: 5,080,194 km (0.046 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.7

Radius: 14.3

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.86 AU - 2.42 AU

Year: 2054 Days

Day: 11.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 86,022,197 km

• M1: 177,872 km (0.067 R)
• M2: 883,824 km (0.109 R)
• M3: 1,504,655 km (0.06 R)
• M4: 2,347,789 km (0.032 R)
• M5: 3,072,441 km (0.113 R)
• M6: 4,129,051 km (0.036 R)
• M7: 4,989,987 km (0.118 R)
• M8: 6,070,083 km (0.056 R)
• M9: 7,347,499 km (0.098 R)
• M10: 8,302,831 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.5

Radius: 10.4

Gravity: 6.89 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.02 AU - 2.54 AU

Year: 2258 Days

Day: 12.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 54.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 86,022,197 km

• M1: 129,402 km (0.1 R)
• M2: 498,759 km (0.111 R)
• M3: 861,983 km (0.069 R)
• M4: 1,503,459 km (0.049 R)
• M5: 1,908,121 km (0.091 R)
• M6: 3,133,477 km (0.05 R)
• M7: 3,690,131 km (0.07 R)
• M8: 8,353,545 km (0.065 R)
• M9: 8,945,504 km (0.094 R)
• M10: 9,849,673 km (0.054 R)
• M11: 10,398,249 km (0.055 R)
• M12: 12,459,707 km (0.077 R)
• M13: 13,320,643 km (0.057 R)
• M14: 18,067,982 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.3

Radius: 10.3

Gravity: 6.43 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 4.63 AU - 6.77 AU

Year: 8927 Days

Day: 9.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 86,022,197 km

• M1: 130,449 km (0.106 R)
• M2: 520,601 km (0.081 R)
• M3: 1,048,382 km (0.086 R)
• M4: 1,421,180 km (0.05 R)
• M5: 1,993,092 km (0.111 R)
• M6: 2,537,329 km (0.087 R)
• M7: 3,046,112 km (0.094 R)
• M8: 3,949,533 km (0.099 R)
• M9: 4,548,972 km (0.11 R)
• M10: 9,879,443 km (0.094 R)
• M11: 12,621,124 km (0.103 R)
• M12: 15,372,378 km (0.096 R)
• M13: 19,478,092 km (0.093 R)
• M14: 22,871,270 km (0.056 R)
• M15: 28,473,112 km (0.099 R)
• M16: 29,471,080 km (0.091 R)
• M17: 35,266,950 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 160.5

Radius: 4.3

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 5.76 AU - 6.1 AU

Year: 9473 Days

Day: 23.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 86,022,197 km

• M1: 59,091 km (0.117 R)
• M2: 360,531 km (0.074 R)
• M3: 632,350 km (0.089 R)
• M4: 769,083 km (0.032 R)
• M5: 1,104,032 km (0.114 R)
• M6: 1,482,814 km (0.098 R)
• M7: 1,887,925 km (0.061 R)
• M8: 2,363,048 km (0.117 R)
• M9: 6,046,148 km (0.104 R)
• M10: 6,229,405 km (0.072 R)
• M11: 6,606,691 km (0.11 R)
• M12: 10,235,786 km (0.079 R)
• M13: 10,408,870 km (0.095 R)
• M14: 11,817,185 km (0.119 R)
• M15: 13,193,934 km (0.094 R)
• M16: 13,658,286 km (0.071 R)
• M17: 14,894,413 km (0.073 R)
• M18: 15,116,715 km (0.066 R)
• M19: 17,218,416 km (0.048 R)
• M20: 19,907,288 km (0.118 R)
• M21: 21,280,746 km (0.073 R)
• M22: 22,134,501 km (0.1 R)
• M23: 23,382,746 km (0.118 R)
• M24: 23,532,643 km (0.071 R)
• M25: 28,417,612 km (0.044 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 898.3

Radius: 6.4

Gravity: 21.93 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 8.94 AU - 11.22 AU

Year: 20994 Days

Day: 18.9 Hours

Environment

Temp: -240 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 86,022,197 km

• M1: 79,586 km (0.062 R)
• M2: 295,755 km (0.117 R)
• M3: 614,997 km (0.026 R)
• M4: 864,227 km (0.086 R)
• M5: 1,209,200 km (0.094 R)
• M6: 1,607,579 km (0.072 R)
• M7: 2,048,144 km (0.085 R)
• M8: 2,331,184 km (0.052 R)
• M9: 3,924,551 km (0.039 R)
• M10: 5,177,582 km (0.103 R)
• M11: 7,652,978 km (0.1 R)
• M12: 12,947,097 km (0.087 R)
• M13: 14,068,633 km (0.069 R)
• M14: 14,456,390 km (0.115 R)
• M15: 18,000,962 km (0.094 R)
• M16: 28,067,702 km (0.119 R)
• M17: 29,055,497 km (0.111 R)
• M18: 32,966,135 km (0.102 R)
• M19: 36,047,402 km (0.109 R)
• M20: 36,336,575 km (0.103 R)
• M21: 36,773,401 km (0.043 R)
• M22: 37,213,817 km (0.107 R)
• M23: 42,291,916 km (0.076 R)
• M24: 46,604,075 km (0.118 R)
• M25: 48,337,765 km (0.092 R)
• M26: 48,689,469 km (0.118 R)
• M27: 56,673,059 km (0.083 R)
• M28: 60,258,920 km (0.087 R)
• M29: 63,360,383 km (0.048 R)
• M30: 66,349,498 km (0.079 R)
• M31: 73,997,540 km (0.062 R)
• M32: 75,878,733 km (0.085 R)
• M33: 76,116,145 km (0.115 R)
• M34: 76,354,005 km (0.079 R)
• M35: 82,965,184 km (0.108 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: 221 - 15,508 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit