🌌 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 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.46

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.42 AU - 0.68 AU

Year: 263 Days

Day: 35.3 Hours

Environment

Temp: -129 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.45 AU - 0.67 AU

Year: 271 Days

Day: 29.1 Hours

Environment

Temp: -114 °C

Axial Tilt: 0.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.48 AU - 0.66 AU

Year: 278 Days

Day: 35.2 Hours

Environment

Temp: -120 °C

Axial Tilt: 32.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.5

Radius: 10.6

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.7 AU - 0.7 AU

Year: 378 Days

Day: 8.9 Hours

Environment

Temp: -142 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 83,650,132 km

• M1: 132,095 km (0.074 R)
• M2: 488,886 km (0.095 R)
• M3: 1,023,399 km (0.03 R)
• M4: 1,420,133 km (0.097 R)
• M5: 1,805,796 km (0.068 R)
• M6: 2,164,382 km (0.115 R)
• M7: 2,535,086 km (0.095 R)
• M8: 2,928,678 km (0.075 R)
• M9: 3,528,415 km (0.107 R)
• M10: 4,021,340 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.8

Radius: 8.1

Gravity: 10.64 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.95 AU - 1.19 AU

Year: 715 Days

Day: 13.5 Hours

Environment

Temp: -163 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 83,650,132 km

• M1: 101,128 km (0.109 R)
• M2: 385,065 km (0.102 R)
• M3: 717,322 km (0.111 R)
• M4: 1,195,586 km (0.063 R)
• M5: 1,473,240 km (0.074 R)
• M6: 2,333,278 km (0.034 R)
• M7: 3,439,105 km (0.099 R)
• M8: 4,396,831 km (0.104 R)
• M9: 5,193,140 km (0.113 R)
• M10: 6,002,764 km (0.078 R)
• M11: 6,872,227 km (0.119 R)
• M12: 7,428,133 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894

Radius: 8.6

Gravity: 12.09 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.53 AU - 3.95 AU

Year: 3766 Days

Day: 7.9 Hours

Environment

Temp: -211 °C

Axial Tilt: 69.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 83,650,132 km

• M1: 106,962 km (0.119 R)
• M2: 381,175 km (0.099 R)
• M3: 856,298 km (0.119 R)
• M4: 1,243,757 km (0.081 R)
• M5: 1,783,805 km (0.045 R)
• M6: 2,669,873 km (0.108 R)
• M7: 3,230,267 km (0.103 R)
• M8: 3,507,920 km (0.088 R)
• M9: 4,180,662 km (0.108 R)
• M10: 4,708,144 km (0.093 R)
• M11: 8,180,760 km (0.094 R)
• M12: 8,624,467 km (0.055 R)
• M13: 9,006,241 km (0.106 R)
• M14: 9,886,325 km (0.118 R)
• M15: 10,561,460 km (0.093 R)
• M16: 12,240,247 km (0.067 R)
• M17: 15,890,286 km (0.072 R)
• M18: 20,140,810 km (0.095 R)
• M19: 21,781,001 km (0.11 R)
• M20: 22,850,177 km (0.116 R)
• M21: 23,434,656 km (0.115 R)
• M22: 24,481,243 km (0.116 R)
• M23: 25,247,633 km (0.095 R)
• M24: 26,587,132 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.8

Radius: 13.1

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 4.06 AU - 4.94 AU

Year: 6164 Days

Day: 8.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 83,650,132 km

• M1: 279,898 km (0.056 R)
• M2: 1,007,392 km (0.079 R)
• M3: 1,610,571 km (0.036 R)
• M4: 2,052,483 km (0.119 R)
• M5: 3,076,779 km (0.07 R)
• M6: 3,725,885 km (0.05 R)
• M7: 5,036,063 km (0.092 R)
• M8: 5,461,818 km (0.071 R)
• M9: 8,072,600 km (0.095 R)
• M10: 8,509,276 km (0.05 R)
• M11: 9,997,476 km (0.061 R)
• M12: 10,544,406 km (0.056 R)
• M13: 11,022,820 km (0.103 R)
• M14: 14,415,550 km (0.114 R)
• M15: 16,872,994 km (0.116 R)
• M16: 24,745,732 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 922.2

Radius: 4.7

Gravity: 41.75 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 9.16 AU - 10.48 AU

Year: 19869 Days

Day: 22 Hours

Environment

Temp: -225 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 83,650,132 km

• M1: 59,690 km (0.072 R)
• M2: 292,763 km (0.119 R)
• M3: 491,279 km (0.077 R)
• M4: 877,691 km (0.062 R)
• M5: 1,428,211 km (0.117 R)
• M6: 1,596,508 km (0.118 R)
• M7: 2,076,119 km (0.065 R)
• M8: 2,500,828 km (0.076 R)
• M9: 3,201,095 km (0.113 R)
• M10: 3,520,935 km (0.078 R)
• M11: 4,681,665 km (0.115 R)
• M12: 5,368,320 km (0.112 R)
• M13: 7,726,580 km (0.06 R)
• M14: 10,197,040 km (0.085 R)
• M15: 13,515,868 km (0.052 R)
• M16: 13,814,915 km (0.105 R)
• M17: 17,489,637 km (0.066 R)
• M18: 18,477,731 km (0.102 R)
• M19: 19,313,534 km (0.103 R)
• M20: 22,698,485 km (0.053 R)
• M21: 23,334,126 km (0.097 R)
• M22: 24,200,148 km (0.116 R)
• M23: 30,870,568 km (0.078 R)
• M24: 35,323,648 km (0.099 R)
• M25: 38,220,760 km (0.084 R)
• M26: 40,340,412 km (0.067 R)
• M27: 47,855,012 km (0.103 R)
• M28: 48,028,097 km (0.087 R)
• M29: 52,672,961 km (0.099 R)
• M30: 61,812,943 km (0.114 R)
• M31: 69,266,956 km (0.115 R)
• M32: 76,823,144 km (0.034 R)
• M33: 79,217,009 km (0.054 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 183 - 14,881 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit