🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.14

Radius: 1.05

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.84 AU - 0.86 AU

Year: 275 Days

Day: 34.1 Hours

Environment

Temp: 166 °C

Axial Tilt: 35.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 2.47 AU - 2.57 AU

Year: 1406 Days

Day: 19.8 Hours

Environment

Temp: -82 °C

Axial Tilt: 129.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.96 AU - 4.1 AU

Year: 2331 Days

Day: 31.2 Hours

Environment

Temp: -111 °C

Axial Tilt: 17.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 84,747,613 km

• M1: 164,109 km (0.104 R)
• M2: 2,527,007 km (0.1 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.3

Radius: 1.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.97 AU - 4.69 AU

Year: 3167 Days

Day: 43.4 Hours

Environment

Temp: -120 °C

Axial Tilt: 17.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,747,613 km

• M1: 2,935,858 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.5

Radius: 14

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 5.24 AU - 5.84 AU

Year: 4583 Days

Day: 10.4 Hours

Environment

Temp: -141 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 84,747,613 km

• M1: 174,132 km (0.113 R)
• M2: 673,490 km (0.119 R)
• M3: 1,214,735 km (0.083 R)
• M4: 2,940,795 km (0.099 R)
• M5: 3,590,498 km (0.088 R)
• M6: 5,179,976 km (0.062 R)
• M7: 6,011,142 km (0.097 R)
• M8: 6,506,759 km (0.115 R)
• M9: 9,045,585 km (0.059 R)
• M10: 10,122,241 km (0.116 R)
• M11: 11,847,553 km (0.033 R)
• M12: 14,681,385 km (0.117 R)
• M13: 15,128,384 km (0.118 R)
• M14: 16,583,971 km (0.1 R)
• M15: 20,594,690 km (0.116 R)
• M16: 23,425,082 km (0.119 R)
• M17: 26,919,239 km (0.091 R)
• M18: 27,421,290 km (0.089 R)
• M19: 29,669,147 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.7

Radius: 13.2

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 7.3 AU - 12 AU

Year: 10536 Days

Day: 12.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 84,747,613 km

• M1: 164,109 km (0.085 R)
• M2: 1,560,156 km (0.074 R)
• M3: 2,131,770 km (0.091 R)
• M4: 2,996,745 km (0.091 R)
• M5: 3,625,953 km (0.108 R)
• M6: 4,490,180 km (0.096 R)
• M7: 5,216,777 km (0.113 R)
• M8: 5,947,413 km (0.108 R)
• M9: 6,549,096 km (0.091 R)
• M10: 6,986,221 km (0.041 R)
• M11: 7,400,307 km (0.096 R)
• M12: 7,874,982 km (0.119 R)
• M13: 9,372,606 km (0.098 R)
• M14: 11,789,659 km (0.118 R)
• M15: 12,925,406 km (0.095 R)
• M16: 13,808,183 km (0.088 R)
• M17: 15,276,037 km (0.06 R)
• M18: 15,693,864 km (0.044 R)
• M19: 16,190,828 km (0.096 R)
• M20: 17,822,043 km (0.112 R)
• M21: 18,520,067 km (0.108 R)
• M22: 20,053,445 km (0.088 R)
• M23: 24,872,441 km (0.094 R)
• M24: 25,548,923 km (0.116 R)
• M25: 26,737,179 km (0.066 R)
• M26: 28,693,320 km (0.069 R)
• M27: 31,973,703 km (0.113 R)
• M28: 33,120,520 km (0.081 R)
• M29: 33,939,568 km (0.09 R)
• M30: 40,187,374 km (0.095 R)
• M31: 45,419,559 km (0.116 R)
• M32: 46,140,172 km (0.111 R)
• M33: 50,934,036 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.8

Radius: 13.2

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 8.5 AU - 12.76 AU

Year: 12181 Days

Day: 12.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 84,747,613 km

• M1: 164,258 km (0.11 R)
• M2: 882,627 km (0.113 R)
• M3: 1,328,130 km (0.055 R)
• M4: 1,927,868 km (0.047 R)
• M5: 2,578,918 km (0.08 R)
• M6: 3,787,818 km (0.111 R)
• M7: 4,535,508 km (0.076 R)
• M8: 5,413,797 km (0.05 R)
• M9: 6,364,043 km (0.093 R)
• M10: 7,002,078 km (0.084 R)
• M11: 8,175,673 km (0.079 R)
• M12: 9,578,004 km (0.096 R)
• M13: 10,910,771 km (0.08 R)
• M14: 11,826,609 km (0.083 R)
• M15: 12,979,859 km (0.039 R)
• M16: 16,667,297 km (0.045 R)
• M17: 18,992,198 km (0.105 R)
• M18: 21,702,163 km (0.049 R)
• M19: 26,539,111 km (0.076 R)
• M20: 27,878,162 km (0.101 R)
• M21: 35,256,927 km (0.106 R)
• M22: 39,326,737 km (0.079 R)
• M23: 42,023,538 km (0.073 R)
• M24: 44,410,970 km (0.084 R)
• M25: 53,560,077 km (0.044 R)
• M26: 54,867,712 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 161.7

Radius: 4.7

Gravity: 7.32 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 11.05 AU - 17.81 AU

Year: 19265 Days

Day: 18.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 84,747,613 km

• M1: 62,682 km (0.104 R)
• M2: 239,057 km (0.081 R)
• M3: 408,701 km (0.107 R)
• M4: 800,199 km (0.09 R)
• M5: 1,295,218 km (0.07 R)
• M6: 2,195,648 km (0.112 R)
• M7: 2,611,979 km (0.113 R)
• M8: 4,753,921 km (0.065 R)
• M9: 12,122,963 km (0.119 R)
• M10: 12,930,941 km (0.078 R)
• M11: 20,008,566 km (0.118 R)
• M12: 21,546,731 km (0.119 R)
• M13: 22,815,321 km (0.057 R)
• M14: 27,992,006 km (0.12 R)
• M15: 29,093,196 km (0.07 R)
• M16: 32,242,679 km (0.073 R)
• M17: 33,452,178 km (0.063 R)
• M18: 38,715,929 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 492.8

Radius: 5.1

Gravity: 18.95 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 14.03 AU - 22.75 AU

Year: 27717 Days

Day: 21.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 84,747,613 km

• M1: 88,861 km (0.088 R)
• M2: 249,529 km (0.048 R)
• M3: 836,551 km (0.082 R)
• M4: 1,002,605 km (0.1 R)
• M5: 1,219,522 km (0.106 R)
• M6: 2,107,535 km (0.115 R)
• M7: 2,372,772 km (0.081 R)
• M8: 3,510,763 km (0.093 R)
• M9: 3,852,145 km (0.041 R)
• M10: 4,014,459 km (0.108 R)
• M11: 6,472,950 km (0.104 R)
• M12: 6,796,381 km (0.079 R)
• M13: 7,780,286 km (0.097 R)
• M14: 8,799,646 km (0.104 R)
• M15: 9,664,920 km (0.075 R)
• M16: 10,648,975 km (0.091 R)
• M17: 12,387,601 km (0.066 R)
• M18: 13,177,179 km (0.069 R)
• M19: 13,696,732 km (0.076 R)
• M20: 14,540,464 km (0.086 R)
• M21: 14,776,530 km (0.106 R)
• M22: 16,415,973 km (0.042 R)
• M23: 16,843,972 km (0.099 R)
• M24: 22,159,035 km (0.114 R)
• M25: 22,681,730 km (0.069 R)
• M26: 36,508,912 km (0.088 R)
• M27: 36,799,281 km (0.052 R)
• M28: 47,614,908 km (0.119 R)
• M29: 54,304,027 km (0.101 R)
• M30: 54,492,969 km (0.083 R)
• M31: 55,253,375 km (0.103 R)
• M32: 55,828,280 km (0.119 R)
• M33: 56,600,953 km (0.051 R)
• M34: 58,365,609 km (0.106 R)
• M35: 67,304,531 km (0.119 R)
• M36: 67,522,645 km (0.049 R)
• M37: 71,983,803 km (0.089 R)
• M38: 73,129,124 km (0.057 R)
• M39: 73,822,061 km (0.037 R)
• M40: 82,481,684 km (0.115 R)
• M41: 84,747,643 km (0.08 R)

Kuiper Belt

Range: 31.2 - 58.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 10,596 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit