🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.58 AU - 0.68 AU

Year: 318 Days

Day: 46.8 Hours

Environment

Temp: -131 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,077,465 km

• M1: 199,713 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.8

Radius: 8.3

Gravity: 12.07 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.72 AU - 0.8 AU

Year: 421 Days

Day: 14.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,077,465 km

• M1: 108,907 km (0.111 R)
• M2: 384,915 km (0.058 R)
• M3: 739,313 km (0.063 R)
• M4: 1,315,863 km (0.042 R)
• M5: 1,575,266 km (0.107 R)
• M6: 1,958,984 km (0.069 R)
• M7: 2,263,865 km (0.069 R)
• M8: 2,702,486 km (0.108 R)
• M9: 3,291,004 km (0.055 R)
• M10: 3,584,215 km (0.037 R)
• M11: 3,895,080 km (0.055 R)
• M12: 4,952,886 km (0.074 R)
• M13: 5,273,624 km (0.076 R)
• M14: 5,659,587 km (0.112 R)
• M15: 5,939,185 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412

Radius: 8.9

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.83 AU - 1.07 AU

Year: 589 Days

Day: 12.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,077,465 km

• M1: 110,702 km (0.037 R)
• M2: 405,410 km (0.078 R)
• M3: 727,046 km (0.119 R)
• M4: 1,206,656 km (0.068 R)
• M5: 1,550,582 km (0.046 R)
• M6: 1,831,377 km (0.04 R)
• M7: 2,308,445 km (0.049 R)
• M8: 3,317,782 km (0.103 R)
• M9: 3,908,394 km (0.038 R)
• M10: 4,450,088 km (0.097 R)
• M11: 4,823,185 km (0.102 R)
• M12: 5,168,606 km (0.103 R)
• M13: 5,598,252 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.4

Radius: 11.8

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.31 AU - 2.33 AU

Year: 2247 Days

Day: 10.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,077,465 km

• M1: 147,204 km (0.086 R)
• M2: 548,875 km (0.116 R)
• M3: 1,296,714 km (0.091 R)
• M4: 2,108,582 km (0.065 R)
• M5: 2,672,117 km (0.12 R)
• M6: 3,162,649 km (0.075 R)
• M7: 4,003,239 km (0.116 R)
• M8: 4,521,446 km (0.085 R)
• M9: 4,986,995 km (0.114 R)
• M10: 7,608,099 km (0.115 R)
• M11: 9,258,612 km (0.074 R)
• M12: 10,074,669 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 63.8

Radius: 14.8

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 3.45 AU - 5.11 AU

Year: 5630 Days

Day: 12.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 56,077,465 km

• M1: 187,745 km (0.035 R)
• M2: 719,416 km (0.077 R)
• M3: 1,267,992 km (0.119 R)
• M4: 3,083,063 km (0.062 R)
• M5: 4,371,100 km (0.091 R)
• M6: 6,967,820 km (0.104 R)
• M7: 11,245,272 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.3

Radius: 12

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 5.21 AU - 5.29 AU

Year: 7648 Days

Day: 10.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 56,077,465 km

• M1: 149,299 km (0.094 R)
• M2: 749,635 km (0.091 R)
• M3: 1,234,332 km (0.113 R)
• M4: 2,500,080 km (0.101 R)
• M5: 4,013,262 km (0.088 R)
• M6: 4,438,270 km (0.069 R)
• M7: 6,848,291 km (0.11 R)
• M8: 7,302,321 km (0.109 R)
• M9: 7,696,062 km (0.117 R)
• M10: 8,103,866 km (0.087 R)
• M11: 8,963,156 km (0.093 R)
• M12: 9,507,244 km (0.032 R)
• M13: 10,512,542 km (0.102 R)
• M14: 13,539,505 km (0.064 R)
• M15: 14,195,940 km (0.091 R)
• M16: 16,967,690 km (0.079 R)
• M17: 18,085,485 km (0.09 R)
• M18: 20,005,723 km (0.108 R)
• M19: 20,779,294 km (0.098 R)
• M20: 21,412,392 km (0.059 R)
• M21: 25,755,218 km (0.026 R)
• M22: 26,301,998 km (0.109 R)
• M23: 30,046,433 km (0.106 R)
• M24: 30,958,531 km (0.079 R)
• M25: 32,413,819 km (0.039 R)
• M26: 33,805,678 km (0.096 R)
• M27: 37,053,298 km (0.083 R)
• M28: 37,750,275 km (0.12 R)
• M29: 39,050,879 km (0.09 R)
• M30: 40,015,336 km (0.118 R)
• M31: 40,503,474 km (0.081 R)
• M32: 40,995,651 km (0.099 R)
• M33: 41,741,247 km (0.057 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 483.2

Radius: 4.7

Gravity: 21.87 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 7.89 AU - 8.61 AU

Year: 15067 Days

Day: 22.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 56,077,465 km

• M1: 58,493 km (0.092 R)
• M2: 275,260 km (0.112 R)
• M3: 654,939 km (0.112 R)
• M4: 902,674 km (0.066 R)
• M5: 1,236,277 km (0.07 R)
• M6: 1,467,555 km (0.089 R)
• M7: 3,484,733 km (0.066 R)
• M8: 4,004,735 km (0.104 R)
• M9: 5,163,221 km (0.104 R)
• M10: 7,489,468 km (0.057 R)
• M11: 8,257,503 km (0.079 R)
• M12: 10,708,216 km (0.084 R)
• M13: 13,538,906 km (0.076 R)
• M14: 15,513,748 km (0.108 R)
• M15: 20,193,169 km (0.108 R)
• M16: 22,210,945 km (0.111 R)
• M17: 27,156,950 km (0.078 R)
• M18: 28,955,865 km (0.091 R)
• M19: 29,609,308 km (0.081 R)
• M20: 32,437,905 km (0.059 R)
• M21: 33,498,853 km (0.098 R)
• M22: 33,857,588 km (0.109 R)
• M23: 37,458,260 km (0.112 R)
• M24: 43,113,209 km (0.109 R)
• M25: 46,884,571 km (0.063 R)
• M26: 49,620,417 km (0.034 R)
• M27: 50,242,594 km (0.057 R)
• M28: 54,413,682 km (0.075 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 157 - 15,786 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit