🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.97

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.41 AU - 0.63 AU

Year: 246 Days

Day: 42.5 Hours

Environment

Temp: -112 °C

Axial Tilt: 27.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 36,084,607 km

• M1: 164,857 km (0.106 R)
• M2: 189,541 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.1

Radius: 9

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.82 AU - 1.1 AU

Year: 617 Days

Day: 13.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,084,607 km

• M1: 111,899 km (0.054 R)
• M2: 425,905 km (0.092 R)
• M3: 1,002,156 km (0.111 R)
• M4: 1,374,505 km (0.09 R)
• M5: 1,903,483 km (0.074 R)
• M6: 2,188,617 km (0.112 R)
• M7: 2,613,774 km (0.102 R)
• M8: 3,058,678 km (0.116 R)
• M9: 3,465,435 km (0.043 R)
• M10: 4,045,276 km (0.108 R)
• M11: 5,296,961 km (0.119 R)
• M12: 5,707,907 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.6

Radius: 10.7

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.39 AU - 2.59 AU

Year: 2578 Days

Day: 7.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 36,084,607 km

• M1: 133,142 km (0.109 R)
• M2: 538,702 km (0.057 R)
• M3: 1,175,989 km (0.108 R)
• M4: 2,004,013 km (0.033 R)
• M5: 2,375,016 km (0.065 R)
• M6: 2,778,631 km (0.068 R)
• M7: 3,758,497 km (0.048 R)
• M8: 4,624,669 km (0.059 R)
• M9: 5,176,386 km (0.073 R)
• M10: 6,063,351 km (0.081 R)
• M11: 6,897,958 km (0.098 R)
• M12: 8,053,901 km (0.062 R)
• M13: 8,591,107 km (0.08 R)
• M14: 9,334,458 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.2

Radius: 12.2

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.1 AU - 3.34 AU

Year: 2943 Days

Day: 6.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 36,084,607 km

• M1: 151,692 km (0.055 R)
• M2: 782,846 km (0.056 R)
• M3: 1,175,989 km (0.118 R)
• M4: 1,761,216 km (0.1 R)
• M5: 2,392,220 km (0.086 R)
• M6: 3,674,572 km (0.086 R)
• M7: 4,489,432 km (0.041 R)
• M8: 5,854,213 km (0.066 R)
• M9: 7,204,334 km (0.099 R)
• M10: 8,213,372 km (0.1 R)
• M11: 8,717,816 km (0.053 R)
• M12: 9,677,935 km (0.074 R)
• M13: 10,202,874 km (0.071 R)
• M14: 11,977,554 km (0.088 R)
• M15: 12,583,126 km (0.079 R)
• M16: 13,300,148 km (0.1 R)
• M17: 13,855,755 km (0.098 R)
• M18: 14,474,940 km (0.118 R)
• M19: 15,162,343 km (0.099 R)
• M20: 15,768,812 km (0.106 R)
• M21: 16,338,780 km (0.112 R)
• M22: 16,976,217 km (0.088 R)
• M23: 17,465,252 km (0.12 R)
• M24: 17,907,763 km (0.066 R)
• M25: 18,700,183 km (0.039 R)
• M26: 19,515,790 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 139.2

Radius: 11

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 3.5 AU - 4.64 AU

Year: 5386 Days

Day: 10.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,084,607 km

• M1: 136,882 km (0.089 R)
• M2: 1,097,899 km (0.105 R)
• M3: 1,939,387 km (0.087 R)
• M4: 5,246,098 km (0.086 R)
• M5: 6,115,262 km (0.069 R)
• M6: 8,492,970 km (0.075 R)
• M7: 9,163,767 km (0.091 R)
• M8: 9,583,090 km (0.111 R)
• M9: 10,273,185 km (0.046 R)
• M10: 12,416,025 km (0.047 R)
• M11: 14,277,172 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399.4

Radius: 13

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 4.28 AU - 6.8 AU

Year: 8554 Days

Day: 10.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 36,084,607 km

• M1: 161,715 km (0.112 R)
• M2: 576,401 km (0.108 R)
• M3: 1,019,809 km (0.078 R)
• M4: 1,512,135 km (0.106 R)
• M5: 2,056,073 km (0.063 R)
• M6: 4,652,045 km (0.095 R)
• M7: 5,241,909 km (0.093 R)
• M8: 6,991,008 km (0.091 R)
• M9: 8,640,474 km (0.117 R)
• M10: 9,058,749 km (0.102 R)
• M11: 11,014,442 km (0.12 R)
• M12: 11,556,884 km (0.074 R)
• M13: 12,377,877 km (0.046 R)
• M14: 12,964,600 km (0.09 R)
• M15: 16,625,709 km (0.103 R)
• M16: 17,605,425 km (0.074 R)
• M17: 18,554,175 km (0.06 R)
• M18: 18,971,104 km (0.101 R)
• M19: 21,150,596 km (0.1 R)
• M20: 22,851,673 km (0.098 R)
• M21: 24,227,226 km (0.098 R)
• M22: 27,771,199 km (0.063 R)
• M23: 28,685,242 km (0.113 R)
• M24: 29,713,877 km (0.114 R)
• M25: 30,285,341 km (0.111 R)
• M26: 32,342,910 km (0.099 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 533 - 11,507 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit