🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.6 AU - 0.66 AU

Year: 214 Days

Day: 15 Hours

Environment

Temp: 27 °C

Axial Tilt: 18.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 74,047,404 km

• M1: 32,612 km (0.071 R)
• M2: 142,417 km (0.077 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.23

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.33 AU - 1.97 AU

Year: 906 Days

Day: 21.7 Hours

Environment

Temp: -95 °C

Axial Tilt: 17.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.58

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 2.28 AU - 2.74 AU

Year: 1700 Days

Day: 34.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 140.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,047,404 km

• M1: 433,535 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.9

Radius: 12.8

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 2.37 AU - 3.91 AU

Year: 2379 Days

Day: 10 Hours

Environment

Temp: -149 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,047,404 km

• M1: 165,904 km (0.077 R)
• M2: 592,408 km (0.08 R)
• M3: 1,014,124 km (0.106 R)
• M4: 3,104,305 km (0.086 R)
• M5: 3,625,355 km (0.078 R)
• M6: 4,090,455 km (0.076 R)
• M7: 5,391,657 km (0.096 R)
• M8: 5,895,652 km (0.074 R)
• M9: 6,975,599 km (0.04 R)
• M10: 9,240,361 km (0.088 R)
• M11: 9,757,970 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.1

Radius: 11.2

Gravity: 7.61 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 4.86 AU - 5.32 AU

Year: 4909 Days

Day: 6.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 74,047,404 km

• M1: 140,024 km (0.11 R)
• M2: 497,413 km (0.086 R)
• M3: 1,726,509 km (0.06 R)
• M4: 2,545,557 km (0.051 R)
• M5: 3,244,628 km (0.095 R)
• M6: 3,809,211 km (0.061 R)
• M7: 5,335,707 km (0.118 R)
• M8: 5,873,811 km (0.111 R)
• M9: 8,163,556 km (0.103 R)
• M10: 8,516,308 km (0.042 R)
• M11: 9,043,939 km (0.06 R)
• M12: 9,854,311 km (0.097 R)
• M13: 10,619,654 km (0.109 R)
• M14: 12,473,919 km (0.111 R)
• M15: 13,155,038 km (0.06 R)
• M16: 14,477,783 km (0.074 R)
• M17: 15,826,707 km (0.035 R)
• M18: 17,644,620 km (0.055 R)
• M19: 18,037,614 km (0.091 R)
• M20: 18,705,269 km (0.119 R)
• M21: 20,518,844 km (0.119 R)
• M22: 21,766,191 km (0.101 R)
• M23: 23,929,975 km (0.093 R)
• M24: 25,811,617 km (0.088 R)
• M25: 26,233,333 km (0.118 R)
• M26: 27,438,942 km (0.086 R)
• M27: 28,771,111 km (0.078 R)
• M28: 30,425,963 km (0.05 R)
• M29: 32,730,219 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.1

Radius: 8

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 4.85 AU - 6.15 AU

Year: 5514 Days

Day: 14.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,047,404 km

• M1: 118,332 km (0.106 R)
• M2: 538,702 km (0.088 R)
• M3: 806,033 km (0.102 R)
• M4: 1,221,317 km (0.115 R)
• M5: 1,763,310 km (0.09 R)
• M6: 3,012,004 km (0.106 R)
• M7: 4,172,584 km (0.056 R)
• M8: 4,897,086 km (0.115 R)
• M9: 5,209,447 km (0.114 R)
• M10: 5,487,699 km (0.109 R)
• M11: 6,620,903 km (0.104 R)
• M12: 6,892,572 km (0.087 R)
• M13: 8,116,133 km (0.105 R)
• M14: 8,427,596 km (0.104 R)
• M15: 13,025,935 km (0.115 R)
• M16: 13,540,103 km (0.057 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.3

Radius: 10.4

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 5.59 AU - 5.85 AU

Year: 5848 Days

Day: 11.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,047,404 km

• M1: 129,851 km (0.116 R)
• M2: 578,196 km (0.116 R)
• M3: 1,100,592 km (0.072 R)
• M4: 1,502,561 km (0.066 R)
• M5: 2,360,206 km (0.035 R)
• M6: 3,596,782 km (0.105 R)
• M7: 3,975,414 km (0.098 R)
• M8: 4,764,094 km (0.108 R)
• M9: 5,489,344 km (0.063 R)
• M10: 5,850,174 km (0.035 R)
• M11: 8,252,417 km (0.091 R)
• M12: 8,616,089 km (0.108 R)
• M13: 9,066,678 km (0.087 R)
• M14: 10,471,103 km (0.082 R)
• M15: 11,247,516 km (0.043 R)
• M16: 13,012,322 km (0.045 R)
• M17: 16,446,940 km (0.025 R)
• M18: 18,158,040 km (0.092 R)
• M19: 18,588,283 km (0.069 R)
• M20: 21,518,457 km (0.101 R)
• M21: 24,893,684 km (0.094 R)
• M22: 25,424,757 km (0.036 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 338

Radius: 3.1

Gravity: 35.17 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 14.65 AU - 17.33 AU

Year: 27334 Days

Day: 20 Hours

Environment

Temp: -217 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 74,047,404 km

• M1: 38,596 km (0.099 R)
• M2: 250,427 km (0.099 R)
• M3: 484,697 km (0.084 R)
• M4: 639,531 km (0.089 R)
• M5: 743,651 km (0.082 R)
• M6: 1,369,569 km (0.113 R)
• M7: 1,698,235 km (0.081 R)
• M8: 1,862,344 km (0.108 R)
• M9: 2,746,916 km (0.113 R)
• M10: 3,321,671 km (0.075 R)
• M11: 3,787,369 km (0.097 R)
• M12: 4,004,137 km (0.082 R)
• M13: 4,565,129 km (0.058 R)
• M14: 5,561,002 km (0.052 R)
• M15: 6,429,268 km (0.079 R)
• M16: 11,953,169 km (0.116 R)
• M17: 12,896,982 km (0.078 R)
• M18: 14,553,330 km (0.109 R)
• M19: 15,161,295 km (0.088 R)
• M20: 18,020,560 km (0.103 R)
• M21: 19,713,708 km (0.11 R)
• M22: 24,563,222 km (0.103 R)
• M23: 24,883,511 km (0.078 R)
• M24: 28,829,305 km (0.111 R)
• M25: 28,947,786 km (0.085 R)
• M26: 37,365,509 km (0.12 R)
• M27: 52,564,952 km (0.114 R)
• M28: 53,096,772 km (0.085 R)
• M29: 53,991,068 km (0.066 R)
• M30: 56,919,895 km (0.091 R)
• M31: 64,296,716 km (0.097 R)
• M32: 67,167,499 km (0.101 R)
• M33: 67,375,739 km (0.093 R)
• M34: 69,695,105 km (0.087 R)
• M35: 71,198,414 km (0.053 R)
• M36: 71,849,314 km (0.094 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 469 - 15,078 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit