🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.52 AU - 0.56 AU

Year: 147 Days

Day: 45.3 Hours

Environment

Temp: 146 °C

Axial Tilt: 31 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 94,905,891 km

• M1: 169,494 km (0.116 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.75 AU - 1.09 AU

Year: 327 Days

Day: 13.5 Hours

Environment

Temp: 49 °C

Axial Tilt: 24.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.69

Radius: 0.86

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.91 AU - 1.03 AU

Year: 354 Days

Day: 40 Hours

Environment

Temp: 14 °C

Axial Tilt: 4.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.99

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.2 AU - 1.68 AU

Year: 641 Days

Day: 13.9 Hours

Environment

Temp: -38 °C

Axial Tilt: 17.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.39 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 805.3

Radius: 14.8

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 6.41 AU - 8.25 AU

Year: 7360 Days

Day: 9 Hours

Environment

Temp: -153 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 94,905,891 km

• M1: 185,352 km (0.12 R)
• M2: 758,760 km (0.036 R)
• M3: 1,360,293 km (0.113 R)
• M4: 1,855,313 km (0.119 R)
• M5: 2,657,008 km (0.094 R)
• M6: 3,380,313 km (0.06 R)
• M7: 4,528,477 km (0.05 R)
• M8: 9,365,724 km (0.088 R)
• M9: 10,596,765 km (0.095 R)
• M10: 11,251,555 km (0.074 R)
• M11: 13,321,840 km (0.118 R)
• M12: 14,025,548 km (0.111 R)
• M13: 15,002,123 km (0.087 R)
• M14: 16,023,727 km (0.102 R)
• M15: 17,993,183 km (0.086 R)
• M16: 18,491,793 km (0.078 R)
• M17: 24,778,494 km (0.104 R)
• M18: 29,321,332 km (0.045 R)
• M19: 31,019,118 km (0.065 R)
• M20: 31,633,816 km (0.109 R)
• M21: 40,625,097 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.9

Radius: 12.9

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 8.81 AU - 11.67 AU

Year: 12152 Days

Day: 10.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 94,905,891 km

• M1: 160,369 km (0.079 R)
• M2: 869,912 km (0.113 R)
• M3: 1,399,338 km (0.059 R)
• M4: 2,107,385 km (0.115 R)
• M5: 2,718,343 km (0.118 R)
• M6: 3,135,422 km (0.037 R)
• M7: 4,045,276 km (0.101 R)
• M8: 4,622,724 km (0.117 R)
• M9: 5,189,101 km (0.12 R)
• M10: 6,052,281 km (0.028 R)
• M11: 6,889,281 km (0.096 R)
• M12: 8,607,113 km (0.088 R)
• M13: 10,648,526 km (0.113 R)
• M14: 11,925,643 km (0.058 R)
• M15: 12,631,446 km (0.112 R)
• M16: 13,552,520 km (0.067 R)
• M17: 16,513,959 km (0.083 R)
• M18: 16,948,691 km (0.111 R)
• M19: 18,686,719 km (0.074 R)
• M20: 24,989,277 km (0.107 R)
• M21: 30,909,463 km (0.082 R)
• M22: 32,353,980 km (0.117 R)
• M23: 32,807,411 km (0.095 R)
• M24: 34,781,954 km (0.114 R)
• M25: 36,589,096 km (0.117 R)
• M26: 38,331,313 km (0.066 R)
• M27: 40,389,630 km (0.086 R)
• M28: 41,712,823 km (0.09 R)
• M29: 42,792,022 km (0.069 R)
• M30: 44,725,425 km (0.12 R)
• M31: 45,855,936 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 516.6

Radius: 6.4

Gravity: 12.61 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 16 AU - 23.12 AU

Year: 32082 Days

Day: 23.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 94,905,891 km

• M1: 90,806 km (0.067 R)
• M2: 399,576 km (0.082 R)
• M3: 660,774 km (0.112 R)
• M4: 861,235 km (0.03 R)
• M5: 1,233,285 km (0.097 R)
• M6: 2,464,775 km (0.091 R)
• M7: 2,823,361 km (0.044 R)
• M8: 3,216,055 km (0.071 R)
• M9: 4,075,944 km (0.047 R)
• M10: 4,652,943 km (0.102 R)
• M11: 5,618,447 km (0.116 R)
• M12: 6,057,966 km (0.086 R)
• M13: 6,567,347 km (0.107 R)
• M14: 7,205,980 km (0.102 R)
• M15: 8,605,917 km (0.086 R)
• M16: 11,511,257 km (0.097 R)
• M17: 12,956,672 km (0.096 R)
• M18: 16,378,274 km (0.117 R)
• M19: 19,456,101 km (0.119 R)
• M20: 20,256,300 km (0.111 R)
• M21: 20,974,519 km (0.108 R)
• M22: 21,603,429 km (0.114 R)
• M23: 22,137,044 km (0.11 R)
• M24: 25,406,805 km (0.038 R)
• M25: 27,840,463 km (0.088 R)
• M26: 28,727,728 km (0.052 R)
• M27: 32,327,053 km (0.085 R)
• M28: 37,425,348 km (0.112 R)
• M29: 39,924,680 km (0.098 R)
• M30: 41,215,111 km (0.094 R)
• M31: 41,541,982 km (0.06 R)
• M32: 54,890,152 km (0.113 R)
• M33: 67,380,826 km (0.102 R)
• M34: 78,840,771 km (0.089 R)
• M35: 82,931,524 km (0.106 R)
• M36: 86,892,876 km (0.106 R)
• M37: 91,255,599 km (0.072 R)
• M38: 91,810,906 km (0.085 R)
• M39: 92,648,205 km (0.115 R)
• M40: 93,209,197 km (0.103 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 403 - 15,762 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit