🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.64 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.28 AU - 1.28 AU

Year: 607 Days

Day: 43.5 Hours

Environment

Temp: -71 °C

Axial Tilt: 36.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.79

Radius: 0.91

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.8 AU - 2.46 AU

Year: 1302 Days

Day: 24.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 46.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.43

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.96 AU - 3.24 AU

Year: 1756 Days

Day: 37.6 Hours

Environment

Temp: -127 °C

Axial Tilt: 21.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.2

Radius: 10.7

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 3.39 AU - 5.03 AU

Year: 3619 Days

Day: 5.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 96,544,386 km

• M1: 133,142 km (0.113 R)
• M2: 621,280 km (0.065 R)
• M3: 1,086,529 km (0.062 R)
• M4: 1,495,979 km (0.087 R)
• M5: 2,849,690 km (0.103 R)
• M6: 3,294,594 km (0.112 R)
• M7: 3,683,698 km (0.098 R)
• M8: 4,555,106 km (0.057 R)
• M9: 4,940,170 km (0.116 R)
• M10: 5,399,286 km (0.041 R)
• M11: 6,950,167 km (0.074 R)
• M12: 7,527,914 km (0.064 R)
• M13: 9,000,556 km (0.072 R)
• M14: 10,490,850 km (0.065 R)
• M15: 11,601,165 km (0.1 R)
• M16: 12,322,526 km (0.117 R)
• M17: 12,741,101 km (0.12 R)
• M18: 14,511,741 km (0.091 R)
• M19: 14,978,936 km (0.117 R)
• M20: 18,778,273 km (0.091 R)
• M21: 19,646,240 km (0.073 R)
• M22: 24,247,272 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693

Radius: 9

Gravity: 8.56 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 4.15 AU - 5.55 AU

Year: 4475 Days

Day: 6 Hours

Environment

Temp: -157 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 96,544,386 km

• M1: 111,899 km (0.113 R)
• M2: 727,494 km (0.109 R)
• M3: 1,119,590 km (0.115 R)
• M4: 1,712,148 km (0.043 R)
• M5: 2,002,367 km (0.078 R)
• M6: 3,251,809 km (0.106 R)
• M7: 4,192,630 km (0.117 R)
• M8: 5,115,798 km (0.119 R)
• M9: 5,582,843 km (0.114 R)
• M10: 5,900,140 km (0.094 R)
• M11: 6,229,405 km (0.094 R)
• M12: 6,730,259 km (0.071 R)
• M13: 10,621,598 km (0.055 R)
• M14: 14,147,919 km (0.072 R)
• M15: 15,124,345 km (0.101 R)
• M16: 17,210,936 km (0.065 R)
• M17: 18,449,457 km (0.12 R)
• M18: 19,220,634 km (0.101 R)
• M19: 21,172,587 km (0.083 R)
• M20: 23,105,690 km (0.098 R)
• M21: 24,077,029 km (0.064 R)
• M22: 24,842,671 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.7

Radius: 12.4

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 5.43 AU - 7.05 AU

Year: 6531 Days

Day: 11.1 Hours

Environment

Temp: -173 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 96,544,386 km

• M1: 154,235 km (0.081 R)
• M2: 554,859 km (0.111 R)
• M3: 1,485,956 km (0.109 R)
• M4: 2,363,946 km (0.071 R)
• M5: 4,264,287 km (0.062 R)
• M6: 5,081,092 km (0.05 R)
• M7: 6,080,705 km (0.112 R)
• M8: 6,642,145 km (0.076 R)
• M9: 9,871,215 km (0.093 R)
• M10: 12,236,507 km (0.091 R)
• M11: 19,400,151 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 717.9

Radius: 6.5

Gravity: 16.99 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 9.16 AU - 13.32 AU

Year: 15788 Days

Day: 18.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 96,544,386 km

• M1: 81,830 km (0.115 R)
• M2: 491,579 km (0.109 R)
• M3: 1,280,259 km (0.046 R)
• M4: 2,649,528 km (0.055 R)
• M5: 3,157,113 km (0.107 R)
• M6: 3,814,297 km (0.106 R)
• M7: 4,827,523 km (0.119 R)
• M8: 9,786,244 km (0.037 R)
• M9: 10,872,175 km (0.091 R)
• M10: 14,251,591 km (0.117 R)
• M11: 15,718,996 km (0.066 R)
• M12: 17,365,171 km (0.088 R)
• M13: 20,000,487 km (0.119 R)
• M14: 24,690,829 km (0.118 R)
• M15: 34,991,690 km (0.103 R)
• M16: 36,969,823 km (0.092 R)
• M17: 37,239,099 km (0.08 R)
• M18: 41,872,893 km (0.099 R)
• M19: 55,900,536 km (0.105 R)
• M20: 57,870,440 km (0.074 R)
• M21: 58,415,725 km (0.056 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 987.6

Radius: 4.3

Gravity: 53.41 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 12.18 AU - 17.38 AU

Year: 23806 Days

Day: 20.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 96,544,386 km

• M1: 55,202 km (0.033 R)
• M2: 255,812 km (0.07 R)
• M3: 419,772 km (0.049 R)
• M4: 597,643 km (0.093 R)
• M5: 1,080,845 km (0.072 R)
• M6: 2,194,451 km (0.06 R)
• M7: 2,431,265 km (0.103 R)
• M8: 2,818,125 km (0.036 R)
• M9: 3,552,650 km (0.109 R)
• M10: 4,050,362 km (0.102 R)
• M11: 4,980,712 km (0.091 R)
• M12: 6,368,830 km (0.101 R)
• M13: 8,329,161 km (0.104 R)
• M14: 9,692,596 km (0.065 R)
• M15: 11,756,597 km (0.119 R)
• M16: 18,301,804 km (0.051 R)
• M17: 20,999,951 km (0.077 R)
• M18: 28,944,645 km (0.116 R)
• M19: 56,228,903 km (0.092 R)
• M20: 62,071,597 km (0.04 R)
• M21: 62,937,919 km (0.04 R)
• M22: 64,694,796 km (0.063 R)
• M23: 76,421,474 km (0.092 R)
• M24: 88,118,083 km (0.099 R)
• M25: 93,395,147 km (0.091 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 176 - 17,605 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit