🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.56 AU - 0.92 AU

Year: 282 Days

Day: 17.8 Hours

Environment

Temp: -23 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.89

Radius: 0.95

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.92 AU - 1.38 AU

Year: 546 Days

Day: 43.7 Hours

Environment

Temp: -87 °C

Axial Tilt: 165.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.72

Radius: 1.24

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.09 AU - 1.49 AU

Year: 649 Days

Day: 43.2 Hours

Environment

Temp: -97 °C

Axial Tilt: 15.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.39

Radius: 0.69

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.35 AU - 1.45 AU

Year: 734 Days

Day: 25.3 Hours

Environment

Temp: -96 °C

Axial Tilt: 34.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,398,034 km

• M1: 101,128 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.7

Radius: 14

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.13 AU - 3.47 AU

Year: 2075 Days

Day: 9.6 Hours

Environment

Temp: -149 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,398,034 km

• M1: 174,132 km (0.098 R)
• M2: 825,331 km (0.069 R)
• M3: 1,357,750 km (0.086 R)
• M4: 1,977,983 km (0.066 R)
• M5: 2,620,506 km (0.111 R)
• M6: 3,171,774 km (0.065 R)
• M7: 4,280,743 km (0.073 R)
• M8: 4,767,086 km (0.119 R)
• M9: 6,367,633 km (0.057 R)
• M10: 8,902,270 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.8

Radius: 9.3

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 2.67 AU - 3.25 AU

Year: 2256 Days

Day: 11.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,398,034 km

• M1: 132,095 km (0.033 R)
• M2: 490,083 km (0.117 R)
• M3: 801,097 km (0.117 R)
• M4: 1,287,589 km (0.114 R)
• M5: 2,037,373 km (0.078 R)
• M6: 2,996,445 km (0.11 R)
• M7: 3,349,945 km (0.118 R)
• M8: 3,814,447 km (0.103 R)
• M9: 5,909,714 km (0.103 R)
• M10: 8,103,866 km (0.054 R)
• M11: 8,444,201 km (0.118 R)
• M12: 8,793,961 km (0.031 R)
• M13: 11,842,616 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.7

Radius: 8

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 4.66 AU - 6.28 AU

Year: 5667 Days

Day: 7.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,398,034 km

• M1: 99,483 km (0.114 R)
• M2: 462,856 km (0.102 R)
• M3: 747,092 km (0.051 R)
• M4: 1,078,750 km (0.108 R)
• M5: 1,377,497 km (0.073 R)
• M6: 1,806,993 km (0.105 R)
• M7: 2,088,685 km (0.114 R)
• M8: 3,024,271 km (0.116 R)
• M9: 3,794,999 km (0.108 R)
• M10: 4,764,692 km (0.032 R)
• M11: 5,607,975 km (0.097 R)
• M12: 6,065,146 km (0.089 R)
• M13: 6,702,733 km (0.108 R)
• M14: 7,587,155 km (0.09 R)
• M15: 8,075,293 km (0.095 R)
• M16: 8,400,070 km (0.116 R)
• M17: 10,535,430 km (0.104 R)
• M18: 11,591,441 km (0.119 R)
• M19: 13,305,384 km (0.085 R)
• M20: 16,875,089 km (0.064 R)
• M21: 18,010,387 km (0.116 R)
• M22: 18,941,933 km (0.102 R)
• M23: 24,161,103 km (0.055 R)
• M24: 25,524,239 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.7

Radius: 8.8

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 7.83 AU - 9.87 AU

Year: 11661 Days

Day: 12.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 71,398,034 km

• M1: 109,506 km (0.089 R)
• M2: 453,282 km (0.1 R)
• M3: 870,809 km (0.064 R)
• M4: 1,287,140 km (0.097 R)
• M5: 1,617,003 km (0.102 R)
• M6: 2,019,422 km (0.051 R)
• M7: 2,377,709 km (0.095 R)
• M8: 2,900,852 km (0.1 R)
• M9: 3,475,159 km (0.06 R)
• M10: 3,992,767 km (0.109 R)
• M11: 4,338,338 km (0.087 R)
• M12: 5,059,400 km (0.073 R)
• M13: 8,241,646 km (0.113 R)
• M14: 9,671,054 km (0.036 R)
• M15: 10,198,685 km (0.07 R)
• M16: 11,842,766 km (0.081 R)
• M17: 12,335,392 km (0.101 R)
• M18: 14,880,051 km (0.118 R)
• M19: 15,197,049 km (0.065 R)
• M20: 16,108,549 km (0.096 R)
• M21: 18,040,306 km (0.11 R)
• M22: 18,913,659 km (0.086 R)
• M23: 23,195,299 km (0.11 R)
• M24: 24,053,542 km (0.104 R)
• M25: 25,560,591 km (0.114 R)
• M26: 27,129,723 km (0.109 R)
• M27: 27,603,201 km (0.112 R)
• M28: 28,082,213 km (0.102 R)
• M29: 34,601,688 km (0.101 R)
• M30: 36,634,574 km (0.113 R)
• M31: 41,810,810 km (0.105 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 267.3

Radius: 6.5

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 10.02 AU - 10.34 AU

Year: 14387 Days

Day: 20.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 71,398,034 km

• M1: 80,932 km (0.097 R)
• M2: 421,567 km (0.045 R)
• M3: 1,038,209 km (0.119 R)
• M4: 1,755,980 km (0.042 R)
• M5: 2,108,133 km (0.116 R)
• M6: 2,449,366 km (0.055 R)
• M7: 2,997,193 km (0.079 R)
• M8: 3,453,317 km (0.106 R)
• M9: 3,773,905 km (0.107 R)
• M10: 4,766,188 km (0.07 R)
• M11: 6,454,999 km (0.058 R)
• M12: 6,865,794 km (0.095 R)
• M13: 7,214,657 km (0.11 R)
• M14: 7,864,061 km (0.082 R)
• M15: 8,507,481 km (0.108 R)
• M16: 10,751,599 km (0.106 R)
• M17: 12,037,243 km (0.103 R)
• M18: 13,723,510 km (0.1 R)
• M19: 15,233,402 km (0.071 R)
• M20: 15,561,470 km (0.089 R)
• M21: 18,357,155 km (0.113 R)
• M22: 25,374,492 km (0.061 R)
• M23: 26,114,702 km (0.101 R)
• M24: 28,028,208 km (0.09 R)
• M25: 29,930,944 km (0.079 R)
• M26: 33,658,025 km (0.079 R)
• M27: 35,690,162 km (0.111 R)
• M28: 37,445,095 km (0.114 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 259.7

Radius: 3.4

Gravity: 22.47 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 14.76 AU - 18.12 AU

Year: 29525 Days

Day: 16.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,398,034 km

• M1: 42,336 km (0.048 R)
• M2: 255,364 km (0.04 R)
• M3: 479,611 km (0.093 R)
• M4: 933,341 km (0.089 R)
• M5: 2,007,603 km (0.088 R)
• M6: 2,446,823 km (0.107 R)
• M7: 4,340,433 km (0.11 R)
• M8: 5,795,122 km (0.075 R)
• M9: 14,401,189 km (0.076 R)
• M10: 18,835,569 km (0.034 R)
• M11: 21,987,596 km (0.096 R)
• M12: 30,629,715 km (0.094 R)
• M13: 30,996,230 km (0.12 R)
• M14: 46,064,775 km (0.075 R)
• M15: 49,838,830 km (0.089 R)
• M16: 55,969,351 km (0.049 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 163 - 18,822 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit