🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.47 AU - 0.67 AU

Year: 282 Days

Day: 18.5 Hours

Environment

Temp: -117 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 971.1

Radius: 8.6

Gravity: 13.13 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.64 AU - 0.82 AU

Year: 409 Days

Day: 7 Hours

Environment

Temp: -147 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 32,663,282 km

• M1: 106,962 km (0.045 R)
• M2: 415,134 km (0.117 R)
• M3: 710,889 km (0.092 R)
• M4: 1,147,266 km (0.098 R)
• M5: 1,417,889 km (0.098 R)
• M6: 1,762,712 km (0.083 R)
• M7: 2,127,581 km (0.078 R)
• M8: 2,443,681 km (0.099 R)
• M9: 2,999,437 km (0.091 R)
• M10: 3,548,013 km (0.061 R)
• M11: 3,954,171 km (0.055 R)
• M12: 4,318,591 km (0.107 R)
• M13: 5,278,860 km (0.084 R)
• M14: 6,024,007 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.6

Radius: 10.3

Gravity: 7.12 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.35 AU - 1.75 AU

Year: 1266 Days

Day: 10.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,663,282 km

• M1: 128,056 km (0.085 R)
• M2: 518,057 km (0.101 R)
• M3: 992,432 km (0.109 R)
• M4: 1,338,901 km (0.094 R)
• M5: 1,796,521 km (0.097 R)
• M6: 2,206,718 km (0.117 R)
• M7: 2,705,178 km (0.11 R)
• M8: 3,087,700 km (0.088 R)
• M9: 3,996,806 km (0.097 R)
• M10: 4,477,015 km (0.112 R)
• M11: 5,156,339 km (0.049 R)
• M12: 5,510,438 km (0.105 R)
• M13: 6,526,955 km (0.077 R)
• M14: 8,126,605 km (0.119 R)
• M15: 8,607,562 km (0.116 R)
• M16: 9,288,382 km (0.108 R)
• M17: 9,845,784 km (0.12 R)
• M18: 10,557,421 km (0.117 R)
• M19: 10,925,880 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235

Radius: 10.5

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 2.27 AU - 2.35 AU

Year: 2303 Days

Day: 9 Hours

Environment

Temp: -191 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,663,282 km

• M1: 130,599 km (0.049 R)
• M2: 457,470 km (0.11 R)
• M3: 876,494 km (0.094 R)
• M4: 1,337,106 km (0.108 R)
• M5: 1,815,071 km (0.089 R)
• M6: 4,373,793 km (0.048 R)
• M7: 4,807,178 km (0.092 R)
• M8: 5,457,929 km (0.083 R)
• M9: 6,120,348 km (0.063 R)
• M10: 6,639,453 km (0.101 R)
• M11: 11,377,965 km (0.062 R)
• M12: 12,127,600 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.1

Radius: 11.6

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 3.37 AU - 3.87 AU

Year: 4518 Days

Day: 13.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 32,663,282 km

• M1: 144,212 km (0.115 R)
• M2: 537,655 km (0.026 R)
• M3: 1,015,770 km (0.082 R)
• M4: 1,413,700 km (0.082 R)
• M5: 1,790,088 km (0.081 R)
• M6: 3,178,057 km (0.116 R)
• M7: 6,734,298 km (0.057 R)
• M8: 9,448,302 km (0.049 R)
• M9: 9,847,579 km (0.033 R)
• M10: 13,310,919 km (0.117 R)
• M11: 14,017,919 km (0.098 R)
• M12: 15,125,093 km (0.079 R)
• M13: 16,176,467 km (0.094 R)
• M14: 22,810,534 km (0.097 R)
• M15: 23,313,183 km (0.107 R)
• M16: 25,782,894 km (0.052 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 174.4

Radius: 4.1

Gravity: 10.37 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 6.49 AU - 6.73 AU

Year: 11148 Days

Day: 22.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 32,663,282 km

• M1: 56,698 km (0.09 R)
• M2: 241,152 km (0.117 R)
• M3: 507,436 km (0.108 R)
• M4: 707,299 km (0.059 R)
• M5: 1,129,614 km (0.113 R)
• M6: 1,299,108 km (0.103 R)
• M7: 1,676,244 km (0.108 R)
• M8: 2,169,618 km (0.113 R)
• M9: 3,225,330 km (0.105 R)
• M10: 3,393,927 km (0.071 R)
• M11: 3,590,498 km (0.045 R)
• M12: 4,176,623 km (0.089 R)
• M13: 5,447,307 km (0.064 R)
• M14: 5,596,157 km (0.065 R)
• M15: 6,613,572 km (0.087 R)
• M16: 7,526,418 km (0.119 R)
• M17: 8,720,957 km (0.112 R)
• M18: 9,684,966 km (0.084 R)
• M19: 13,106,269 km (0.118 R)
• M20: 13,427,606 km (0.104 R)
• M21: 14,537,173 km (0.116 R)
• M22: 15,349,340 km (0.109 R)
• M23: 15,646,591 km (0.028 R)
• M24: 23,119,154 km (0.034 R)
• M25: 23,509,754 km (0.029 R)
• M26: 23,825,406 km (0.117 R)
• M27: 24,303,969 km (0.036 R)
• M28: 24,545,719 km (0.084 R)
• M29: 25,280,544 km (0.071 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: 330 - 13,748 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit