🌌 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: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.2

Radius: 11.3

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.49 AU - 0.65 AU

Year: 297 Days

Day: 10.5 Hours

Environment

Temp: -146 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,411,448 km

• M1: 140,472 km (0.092 R)
• M2: 532,120 km (0.037 R)
• M3: 1,210,995 km (0.057 R)
• M4: 1,568,384 km (0.114 R)
• M5: 2,197,294 km (0.111 R)
• M6: 3,067,804 km (0.059 R)
• M7: 3,622,064 km (0.11 R)
• M8: 4,204,448 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403

Radius: 9.9

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.53 AU - 0.69 AU

Year: 329 Days

Day: 7.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,411,448 km

• M1: 123,119 km (0.091 R)
• M2: 485,146 km (0.068 R)
• M3: 991,385 km (0.118 R)
• M4: 1,609,673 km (0.074 R)
• M5: 2,057,868 km (0.107 R)
• M6: 2,451,610 km (0.115 R)
• M7: 2,848,643 km (0.042 R)
• M8: 3,247,620 km (0.081 R)
• M9: 3,705,988 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.5

Radius: 10.8

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.89 AU - 1.11 AU

Year: 690 Days

Day: 7.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,411,448 km

• M1: 134,339 km (0.098 R)
• M2: 491,579 km (0.098 R)
• M3: 1,099,395 km (0.094 R)
• M4: 1,584,391 km (0.115 R)
• M5: 2,031,090 km (0.066 R)
• M6: 2,478,986 km (0.072 R)
• M7: 3,358,023 km (0.08 R)
• M8: 4,167,647 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.1

Radius: 10.1

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.27 AU - 1.43 AU

Year: 1083 Days

Day: 14.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 165 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 50,411,448 km

• M1: 130,898 km (0.058 R)
• M2: 523,742 km (0.1 R)
• M3: 1,065,885 km (0.04 R)
• M4: 1,430,305 km (0.071 R)
• M5: 2,410,022 km (0.087 R)
• M6: 2,783,418 km (0.065 R)
• M7: 3,452,569 km (0.081 R)
• M8: 4,048,866 km (0.112 R)
• M9: 4,712,483 km (0.066 R)
• M10: 5,062,691 km (0.093 R)
• M11: 5,397,790 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.5

Radius: 9.3

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.06 AU - 2.36 AU

Year: 2268 Days

Day: 7.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 50,411,448 km

• M1: 115,639 km (0.055 R)
• M2: 472,430 km (0.104 R)
• M3: 948,301 km (0.105 R)
• M4: 1,267,842 km (0.115 R)
• M5: 1,866,084 km (0.075 R)
• M6: 4,011,317 km (0.11 R)
• M7: 5,996,631 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.8

Radius: 11.3

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 1.66 AU - 2.76 AU

Year: 2268 Days

Day: 7.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,411,448 km

• M1: 140,472 km (0.115 R)
• M2: 619,634 km (0.064 R)
• M3: 1,024,297 km (0.101 R)
• M4: 1,450,501 km (0.035 R)
• M5: 1,925,474 km (0.118 R)
• M6: 2,385,787 km (0.086 R)
• M7: 2,905,789 km (0.084 R)
• M8: 3,530,809 km (0.1 R)
• M9: 4,124,114 km (0.11 R)
• M10: 6,131,119 km (0.047 R)
• M11: 6,750,454 km (0.115 R)
• M12: 7,718,053 km (0.074 R)
• M13: 8,468,287 km (0.116 R)
• M14: 9,443,665 km (0.082 R)
• M15: 10,113,714 km (0.036 R)
• M16: 10,750,103 km (0.051 R)
• M17: 11,211,313 km (0.076 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.6

Radius: 10.1

Gravity: 7.77 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.4 AU - 3.6 AU

Year: 3587 Days

Day: 11.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 50,411,448 km

• M1: 125,662 km (0.06 R)
• M2: 520,601 km (0.072 R)
• M3: 885,919 km (0.071 R)
• M4: 1,200,074 km (0.085 R)
• M5: 1,636,601 km (0.07 R)
• M6: 1,958,535 km (0.073 R)
• M7: 2,569,942 km (0.11 R)
• M8: 3,009,311 km (0.089 R)
• M9: 3,361,763 km (0.086 R)
• M10: 4,400,272 km (0.112 R)
• M11: 4,806,729 km (0.11 R)
• M12: 5,134,498 km (0.088 R)
• M13: 6,062,903 km (0.114 R)
• M14: 6,628,382 km (0.046 R)
• M15: 7,261,331 km (0.083 R)
• M16: 9,249,337 km (0.097 R)
• M17: 10,577,617 km (0.081 R)
• M18: 11,846,356 km (0.044 R)
• M19: 15,924,544 km (0.097 R)
• M20: 16,656,227 km (0.084 R)
• M21: 17,059,393 km (0.065 R)
• M22: 21,525,189 km (0.093 R)
• M23: 21,866,272 km (0.111 R)
• M24: 22,210,945 km (0.085 R)
• M25: 24,208,975 km (0.064 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917.5

Radius: 6.3

Gravity: 23.12 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 4.3 AU - 7.04 AU

Year: 9319 Days

Day: 23.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 50,411,448 km

• M1: 78,988 km (0.109 R)
• M2: 391,946 km (0.106 R)
• M3: 756,965 km (0.064 R)
• M4: 1,004,400 km (0.095 R)
• M5: 1,712,297 km (0.051 R)
• M6: 1,920,238 km (0.1 R)
• M7: 2,236,339 km (0.068 R)
• M8: 2,485,868 km (0.09 R)
• M9: 3,018,287 km (0.095 R)
• M10: 4,250,076 km (0.104 R)
• M11: 6,445,723 km (0.079 R)
• M12: 7,278,834 km (0.119 R)
• M13: 8,544,133 km (0.089 R)
• M14: 9,204,757 km (0.112 R)
• M15: 10,103,541 km (0.098 R)
• M16: 10,788,101 km (0.088 R)
• M17: 12,966,096 km (0.032 R)
• M18: 13,272,921 km (0.076 R)
• M19: 14,417,794 km (0.11 R)
• M20: 16,185,592 km (0.1 R)
• M21: 19,179,943 km (0.113 R)
• M22: 21,654,142 km (0.097 R)
• M23: 21,999,414 km (0.077 R)
• M24: 24,333,440 km (0.095 R)
• M25: 28,444,090 km (0.12 R)
• M26: 30,446,907 km (0.053 R)
• M27: 30,989,199 km (0.106 R)
• M28: 33,108,702 km (0.114 R)
• M29: 36,163,041 km (0.094 R)
• M30: 36,893,677 km (0.095 R)
• M31: 37,139,317 km (0.086 R)
• M32: 45,450,077 km (0.094 R)
• M33: 47,596,657 km (0.073 R)
• M34: 48,473,899 km (0.039 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 496 - 19,447 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit