🌌 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: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.57 AU - 0.69 AU

Year: 328 Days

Day: 18.8 Hours

Environment

Temp: -127 °C

Axial Tilt: 20.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.9

Radius: 12.1

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.71 AU - 0.75 AU

Year: 409 Days

Day: 13.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 82,194,542 km

• M1: 150,495 km (0.114 R)
• M2: 554,260 km (0.092 R)
• M3: 1,002,455 km (0.119 R)
• M4: 1,684,771 km (0.073 R)
• M5: 2,095,118 km (0.08 R)
• M6: 2,620,506 km (0.06 R)
• M7: 3,221,740 km (0.049 R)
• M8: 3,640,015 km (0.105 R)
• M9: 4,081,479 km (0.109 R)
• M10: 4,658,627 km (0.087 R)
• M11: 5,088,422 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.3

Radius: 10.7

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.79 AU - 0.87 AU

Year: 496 Days

Day: 13.1 Hours

Environment

Temp: -140 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 82,194,542 km

• M1: 133,292 km (0.099 R)
• M2: 493,374 km (0.045 R)
• M3: 846,724 km (0.103 R)
• M4: 1,509,891 km (0.092 R)
• M5: 2,166,626 km (0.11 R)
• M6: 2,662,693 km (0.061 R)
• M7: 3,004,673 km (0.111 R)
• M8: 3,449,428 km (0.109 R)
• M9: 3,844,366 km (0.033 R)
• M10: 5,379,839 km (0.074 R)
• M11: 5,754,880 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797

Radius: 10.1

Gravity: 7.81 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.3 AU - 1.42 AU

Year: 1040 Days

Day: 12 Hours

Environment

Temp: -184 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 82,194,542 km

• M1: 132,843 km (0.07 R)
• M2: 504,145 km (0.047 R)
• M3: 942,616 km (0.052 R)
• M4: 1,292,526 km (0.098 R)
• M5: 1,640,490 km (0.117 R)
• M6: 1,990,400 km (0.115 R)
• M7: 2,653,118 km (0.082 R)
• M8: 3,057,032 km (0.112 R)
• M9: 3,748,025 km (0.055 R)
• M10: 4,450,537 km (0.083 R)
• M11: 5,835,065 km (0.109 R)
• M12: 6,294,779 km (0.111 R)
• M13: 6,731,455 km (0.073 R)
• M14: 7,188,327 km (0.098 R)
• M15: 9,431,248 km (0.118 R)
• M16: 9,790,283 km (0.067 R)
• M17: 10,727,963 km (0.076 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.4

Radius: 8.5

Gravity: 10.68 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.56 AU - 1.64 AU

Year: 1328 Days

Day: 12 Hours

Environment

Temp: -176 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,194,542 km

• M1: 105,766 km (0.109 R)
• M2: 500,405 km (0.081 R)
• M3: 840,291 km (0.03 R)
• M4: 1,547,141 km (0.055 R)
• M5: 1,947,166 km (0.052 R)
• M6: 2,378,457 km (0.077 R)
• M7: 2,830,990 km (0.065 R)
• M8: 3,592,144 km (0.081 R)
• M9: 4,100,029 km (0.111 R)
• M10: 5,051,920 km (0.072 R)
• M11: 5,801,256 km (0.106 R)
• M12: 6,721,283 km (0.093 R)
• M13: 7,762,783 km (0.116 R)
• M14: 8,379,426 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.3

Radius: 8.4

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.69 AU - 1.95 AU

Year: 1611 Days

Day: 14.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,194,542 km

• M1: 104,569 km (0.059 R)
• M2: 366,814 km (0.039 R)
• M3: 641,326 km (0.028 R)
• M4: 1,042,248 km (0.107 R)
• M5: 1,512,584 km (0.048 R)
• M6: 2,414,210 km (0.102 R)
• M7: 2,737,491 km (0.059 R)
• M8: 3,022,027 km (0.074 R)
• M9: 3,728,278 km (0.111 R)
• M10: 5,073,163 km (0.037 R)
• M11: 6,154,905 km (0.103 R)
• M12: 7,020,329 km (0.066 R)
• M13: 8,120,920 km (0.109 R)
• M14: 9,682,872 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.5

Radius: 11.7

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.71 AU - 2.09 AU

Year: 1718 Days

Day: 6.3 Hours

Environment

Temp: -197 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 82,194,542 km

• M1: 145,559 km (0.109 R)
• M2: 510,877 km (0.1 R)
• M3: 972,985 km (0.075 R)
• M4: 1,745,358 km (0.119 R)
• M5: 3,180,451 km (0.094 R)
• M6: 3,818,037 km (0.112 R)
• M7: 4,448,891 km (0.098 R)
• M8: 5,328,826 km (0.08 R)
• M9: 5,962,822 km (0.043 R)
• M10: 7,106,048 km (0.098 R)
• M11: 7,483,783 km (0.104 R)
• M12: 8,501,497 km (0.105 R)
• M13: 8,870,107 km (0.115 R)
• M14: 9,700,375 km (0.12 R)
• M15: 10,810,391 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.9

Radius: 12.9

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 3.69 AU - 5.05 AU

Year: 5993 Days

Day: 9.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 82,194,542 km

• M1: 160,519 km (0.111 R)
• M2: 589,116 km (0.103 R)
• M3: 1,279,660 km (0.102 R)
• M4: 1,689,110 km (0.071 R)
• M5: 2,601,357 km (0.069 R)
• M6: 3,692,823 km (0.113 R)
• M7: 5,413,947 km (0.088 R)
• M8: 6,575,425 km (0.081 R)
• M9: 7,084,207 km (0.038 R)
• M10: 8,109,252 km (0.114 R)
• M11: 11,147,585 km (0.066 R)
• M12: 12,823,380 km (0.063 R)
• M13: 14,030,186 km (0.06 R)
• M14: 14,448,910 km (0.086 R)
• M15: 15,038,176 km (0.112 R)
• M16: 16,844,271 km (0.051 R)
• M17: 20,147,243 km (0.037 R)
• M18: 21,155,383 km (0.079 R)
• M19: 23,859,664 km (0.12 R)
• M20: 24,381,910 km (0.095 R)
• M21: 25,681,915 km (0.069 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 598.1

Radius: 7.3

Gravity: 11.22 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 8.39 AU - 13.67 AU

Year: 24031 Days

Day: 18.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 82,194,542 km

• M1: 92,601 km (0.101 R)
• M2: 341,083 km (0.037 R)
• M3: 671,844 km (0.053 R)
• M4: 1,063,940 km (0.097 R)
• M5: 1,373,608 km (0.072 R)
• M6: 1,653,505 km (0.114 R)
• M7: 2,657,008 km (0.082 R)
• M8: 3,795,148 km (0.081 R)
• M9: 4,455,174 km (0.082 R)
• M10: 5,345,431 km (0.108 R)
• M11: 5,916,745 km (0.094 R)
• M12: 7,374,726 km (0.027 R)
• M13: 9,399,683 km (0.076 R)
• M14: 11,046,157 km (0.11 R)
• M15: 14,432,455 km (0.116 R)
• M16: 15,136,313 km (0.113 R)
• M17: 16,027,467 km (0.102 R)
• M18: 16,443,948 km (0.109 R)
• M19: 17,736,623 km (0.036 R)
• M20: 18,362,540 km (0.078 R)
• M21: 18,818,515 km (0.104 R)
• M22: 21,212,679 km (0.111 R)
• M23: 22,122,234 km (0.091 R)
• M24: 22,534,675 km (0.081 R)
• M25: 25,117,782 km (0.089 R)
• M26: 37,428,041 km (0.045 R)
• M27: 38,161,070 km (0.076 R)
• M28: 42,127,957 km (0.113 R)
• M29: 43,885,882 km (0.109 R)
• M30: 44,210,659 km (0.079 R)
• M31: 56,233,092 km (0.109 R)
• M32: 59,149,951 km (0.107 R)
• M33: 62,575,742 km (0.09 R)
• M34: 67,633,945 km (0.103 R)
• M35: 80,969,100 km (0.069 R)
• M36: 82,194,605 km (0.048 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 266 - 14,372 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit