🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.4

Radius: 12.4

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.53 AU - 0.63 AU

Year: 300 Days

Day: 14.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,909,231 km

• M1: 154,385 km (0.116 R)
• M2: 614,548 km (0.101 R)
• M3: 1,034,469 km (0.058 R)
• M4: 1,456,634 km (0.044 R)
• M5: 2,009,399 km (0.118 R)
• M6: 2,464,027 km (0.098 R)
• M7: 3,023,822 km (0.079 R)
• M8: 3,473,064 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.4

Radius: 14.4

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.92 AU - 1.14 AU

Year: 709 Days

Day: 10.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,909,231 km

• M1: 179,069 km (0.082 R)
• M2: 733,927 km (0.046 R)
• M3: 1,205,908 km (0.042 R)
• M4: 1,762,263 km (0.073 R)
• M5: 2,213,899 km (0.101 R)
• M6: 2,664,936 km (0.044 R)
• M7: 3,902,260 km (0.041 R)
• M8: 4,536,256 km (0.085 R)
• M9: 5,220,367 km (0.112 R)
• M10: 7,577,731 km (0.065 R)

Asteroid Belt

Center: 1.34 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.9

Radius: 14.9

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.4 AU - 1.9 AU

Year: 1438 Days

Day: 6.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 66,909,231 km

• M1: 185,352 km (0.095 R)
• M2: 834,457 km (0.114 R)
• M3: 1,857,706 km (0.106 R)
• M4: 3,108,045 km (0.044 R)
• M5: 3,787,818 km (0.097 R)
• M6: 5,465,409 km (0.117 R)
• M7: 6,598,612 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.9

Radius: 11.8

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.57 AU - 3.75 AU

Year: 3810 Days

Day: 9 Hours

Environment

Temp: -222 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,909,231 km

• M1: 146,756 km (0.093 R)
• M2: 723,904 km (0.119 R)
• M3: 1,641,388 km (0.077 R)
• M4: 2,898,459 km (0.085 R)
• M5: 3,462,892 km (0.054 R)
• M6: 4,158,372 km (0.063 R)
• M7: 4,845,625 km (0.065 R)
• M8: 6,466,817 km (0.082 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 563.2

Radius: 6.6

Gravity: 12.93 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 6.74 AU - 7.84 AU

Year: 13350 Days

Day: 18.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 66,909,231 km

• M1: 82,129 km (0.073 R)
• M2: 378,483 km (0.088 R)
• M3: 1,609,374 km (0.119 R)
• M4: 1,931,009 km (0.084 R)
• M5: 3,282,028 km (0.113 R)
• M6: 3,995,610 km (0.066 R)
• M7: 4,225,841 km (0.081 R)
• M8: 4,712,782 km (0.106 R)
• M9: 5,270,483 km (0.111 R)
• M10: 5,583,142 km (0.081 R)
• M11: 7,335,681 km (0.075 R)
• M12: 7,637,869 km (0.056 R)
• M13: 7,903,405 km (0.11 R)
• M14: 8,833,605 km (0.085 R)
• M15: 9,526,841 km (0.111 R)
• M16: 13,037,903 km (0.088 R)
• M17: 14,332,523 km (0.045 R)
• M18: 15,428,328 km (0.088 R)
• M19: 16,285,972 km (0.098 R)
• M20: 19,293,039 km (0.107 R)
• M21: 21,491,380 km (0.099 R)
• M22: 25,191,085 km (0.095 R)
• M23: 26,580,250 km (0.086 R)
• M24: 28,758,545 km (0.074 R)
• M25: 29,186,545 km (0.071 R)
• M26: 33,114,536 km (0.117 R)
• M27: 36,375,321 km (0.119 R)
• M28: 43,106,626 km (0.047 R)
• M29: 43,667,170 km (0.082 R)
• M30: 44,090,831 km (0.065 R)
• M31: 46,690,243 km (0.12 R)
• M32: 48,478,836 km (0.104 R)
• M33: 49,237,297 km (0.052 R)
• M34: 49,542,925 km (0.092 R)
• M35: 51,717,929 km (0.104 R)
• M36: 52,988,912 km (0.056 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 127.7

Radius: 3.4

Gravity: 11.05 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 6.94 AU - 8.9 AU

Year: 15117 Days

Day: 15.5 Hours

Environment

Temp: -230 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 66,909,231 km

• M1: 54,603 km (0.072 R)
• M2: 168,746 km (0.115 R)
• M3: 301,290 km (0.081 R)
• M4: 492,177 km (0.056 R)
• M5: 675,434 km (0.037 R)
• M6: 1,653,954 km (0.11 R)
• M7: 2,082,103 km (0.087 R)
• M8: 2,313,531 km (0.118 R)
• M9: 2,561,714 km (0.113 R)
• M10: 2,866,744 km (0.029 R)
• M11: 2,987,170 km (0.071 R)
• M12: 3,480,694 km (0.12 R)
• M13: 4,152,238 km (0.095 R)
• M14: 5,497,273 km (0.102 R)
• M15: 7,784,924 km (0.103 R)
• M16: 8,753,420 km (0.109 R)
• M17: 9,619,592 km (0.082 R)
• M18: 10,212,299 km (0.046 R)
• M19: 10,732,600 km (0.098 R)
• M20: 13,770,783 km (0.037 R)
• M21: 14,878,705 km (0.081 R)
• M22: 21,471,034 km (0.094 R)
• M23: 27,730,658 km (0.112 R)
• M24: 29,395,234 km (0.09 R)
• M25: 30,637,943 km (0.115 R)
• M26: 31,915,359 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 690.7

Radius: 7.9

Gravity: 11.07 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 7.59 AU - 9.15 AU

Year: 16424 Days

Day: 21.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 66,909,231 km

• M1: 98,884 km (0.113 R)
• M2: 398,379 km (0.069 R)
• M3: 753,076 km (0.047 R)
• M4: 1,080,845 km (0.059 R)
• M5: 2,069,387 km (0.088 R)
• M6: 3,112,683 km (0.087 R)
• M7: 4,471,032 km (0.066 R)
• M8: 4,736,717 km (0.05 R)
• M9: 8,600,830 km (0.101 R)
• M10: 9,330,718 km (0.064 R)
• M11: 11,581,718 km (0.045 R)
• M12: 11,894,228 km (0.114 R)
• M13: 14,385,630 km (0.049 R)
• M14: 15,487,868 km (0.1 R)
• M15: 16,963,800 km (0.085 R)
• M16: 17,286,034 km (0.115 R)
• M17: 17,612,307 km (0.116 R)
• M18: 24,315,040 km (0.11 R)
• M19: 25,035,353 km (0.058 R)
• M20: 25,769,729 km (0.094 R)
• M21: 26,303,046 km (0.108 R)
• M22: 26,626,626 km (0.062 R)
• M23: 29,542,588 km (0.08 R)
• M24: 30,599,646 km (0.099 R)
• M25: 32,417,111 km (0.108 R)
• M26: 32,664,845 km (0.119 R)
• M27: 35,211,300 km (0.034 R)
• M28: 39,556,071 km (0.07 R)
• M29: 48,641,299 km (0.09 R)
• M30: 60,886,483 km (0.054 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 245 - 13,337 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit