🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.4

Radius: 9.5

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.59 AU - 0.63 AU

Year: 335 Days

Day: 8.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 65.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,683,752 km

• M1: 118,182 km (0.094 R)
• M2: 533,167 km (0.099 R)
• M3: 1,111,961 km (0.04 R)
• M4: 1,489,097 km (0.108 R)
• M5: 1,997,132 km (0.093 R)
• M6: 2,657,756 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.7

Radius: 9.5

Gravity: 9.79 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.62 AU - 0.72 AU

Year: 385 Days

Day: 8.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,683,752 km

• M1: 118,182 km (0.12 R)
• M2: 446,101 km (0.027 R)
• M3: 869,762 km (0.118 R)
• M4: 1,274,723 km (0.086 R)
• M5: 1,662,481 km (0.058 R)
• M6: 2,018,823 km (0.108 R)
• M7: 3,162,798 km (0.029 R)
• M8: 3,552,800 km (0.045 R)
• M9: 3,948,187 km (0.097 R)
• M10: 4,767,385 km (0.12 R)
• M11: 5,201,668 km (0.111 R)
• M12: 5,781,210 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.2

Radius: 14.3

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.55 AU - 0.83 AU

Year: 403 Days

Day: 8.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 55,683,752 km

• M1: 177,872 km (0.032 R)
• M2: 853,456 km (0.112 R)
• M3: 1,326,335 km (0.068 R)
• M4: 1,790,986 km (0.108 R)
• M5: 2,410,022 km (0.093 R)
• M6: 2,978,793 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.5

Radius: 10.9

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.81 AU - 0.87 AU

Year: 541 Days

Day: 5.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,683,752 km

• M1: 135,536 km (0.086 R)
• M2: 549,473 km (0.092 R)
• M3: 890,107 km (0.118 R)
• M4: 1,421,329 km (0.107 R)
• M5: 1,871,918 km (0.111 R)
• M6: 2,265,959 km (0.1 R)
• M7: 3,167,735 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69

Radius: 13.7

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.73 AU - 1.03 AU

Year: 580 Days

Day: 12.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 55,683,752 km

• M1: 170,392 km (0.106 R)
• M2: 971,189 km (0.07 R)
• M3: 1,508,695 km (0.116 R)
• M4: 2,174,106 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.5

Radius: 10.7

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.68 AU - 4.76 AU

Year: 6094 Days

Day: 10.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 55,683,752 km

• M1: 134,339 km (0.095 R)
• M2: 638,933 km (0.117 R)
• M3: 1,075,459 km (0.119 R)
• M4: 1,458,579 km (0.081 R)
• M5: 2,192,506 km (0.075 R)
• M6: 2,782,670 km (0.108 R)
• M7: 4,007,877 km (0.117 R)
• M8: 4,976,972 km (0.12 R)
• M9: 6,492,248 km (0.105 R)
• M10: 7,012,251 km (0.054 R)
• M11: 7,635,027 km (0.047 R)
• M12: 8,374,339 km (0.089 R)
• M13: 11,765,873 km (0.073 R)
• M14: 14,829,487 km (0.097 R)
• M15: 16,354,937 km (0.059 R)
• M16: 16,736,112 km (0.052 R)
• M17: 17,384,619 km (0.101 R)
• M18: 18,456,936 km (0.086 R)
• M19: 22,480,670 km (0.1 R)
• M20: 24,988,529 km (0.075 R)
• M21: 30,841,695 km (0.066 R)
• M22: 31,816,475 km (0.052 R)
• M23: 33,418,818 km (0.103 R)
• M24: 33,827,669 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 284.8

Radius: 6.9

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 7.82 AU - 9.42 AU

Year: 17790 Days

Day: 23.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,683,752 km

• M1: 87,216 km (0.101 R)
• M2: 511,625 km (0.108 R)
• M3: 757,713 km (0.094 R)
• M4: 1,756,279 km (0.114 R)
• M5: 2,039,617 km (0.079 R)
• M6: 3,342,166 km (0.071 R)
• M7: 4,769,330 km (0.046 R)
• M8: 5,530,184 km (0.104 R)
• M9: 7,165,289 km (0.084 R)
• M10: 13,135,591 km (0.104 R)
• M11: 16,213,268 km (0.092 R)
• M12: 17,689,649 km (0.054 R)
• M13: 19,013,291 km (0.119 R)
• M14: 19,986,575 km (0.05 R)
• M15: 20,234,907 km (0.112 R)
• M16: 20,485,334 km (0.118 R)
• M17: 20,907,499 km (0.076 R)
• M18: 28,682,699 km (0.058 R)
• M19: 30,834,664 km (0.028 R)
• M20: 31,612,573 km (0.119 R)
• M21: 46,770,877 km (0.067 R)
• M22: 48,838,918 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 244.9

Radius: 4

Gravity: 15.31 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 9.23 AU - 9.99 AU

Year: 20941 Days

Day: 23.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 55,683,752 km

• M1: 50,714 km (0.049 R)
• M2: 192,832 km (0.03 R)
• M3: 674,986 km (0.046 R)
• M4: 918,980 km (0.112 R)
• M5: 1,206,806 km (0.116 R)
• M6: 3,828,210 km (0.1 R)
• M7: 3,997,405 km (0.117 R)
• M8: 4,171,537 km (0.113 R)
• M9: 4,566,325 km (0.045 R)
• M10: 4,788,927 km (0.119 R)
• M11: 6,240,924 km (0.077 R)
• M12: 7,172,171 km (0.104 R)
• M13: 7,604,658 km (0.04 R)
• M14: 8,907,805 km (0.1 R)
• M15: 10,298,617 km (0.113 R)
• M16: 10,516,282 km (0.066 R)
• M17: 12,126,852 km (0.115 R)
• M18: 13,828,827 km (0.091 R)
• M19: 16,044,372 km (0.056 R)
• M20: 16,410,587 km (0.087 R)
• M21: 17,083,927 km (0.119 R)
• M22: 17,931,549 km (0.071 R)
• M23: 20,470,823 km (0.083 R)
• M24: 32,206,776 km (0.111 R)
• M25: 33,378,875 km (0.056 R)
• M26: 35,189,758 km (0.117 R)
• M27: 35,683,580 km (0.025 R)
• M28: 37,192,574 km (0.106 R)
• M29: 39,137,945 km (0.098 R)
• M30: 42,389,903 km (0.077 R)
• M31: 42,948,801 km (0.103 R)
• M32: 43,654,454 km (0.027 R)
• M33: 47,298,508 km (0.05 R)
• M34: 54,359,229 km (0.091 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 549 - 19,758 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit