🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.3

Radius: 9.7

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.57 AU - 0.75 AU

Year: 377 Days

Day: 14.6 Hours

Environment

Temp: -146 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,192,817 km

• M1: 122,072 km (0.109 R)
• M2: 444,306 km (0.12 R)
• M3: 847,173 km (0.11 R)
• M4: 1,217,577 km (0.112 R)
• M5: 1,520,363 km (0.11 R)
• M6: 1,906,176 km (0.118 R)
• M7: 2,297,823 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.4

Radius: 12.9

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.58 AU - 0.76 AU

Year: 385 Days

Day: 12.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,192,817 km

• M1: 160,369 km (0.102 R)
• M2: 564,134 km (0.05 R)
• M3: 1,053,917 km (0.107 R)
• M4: 1,523,056 km (0.082 R)
• M5: 2,320,113 km (0.095 R)
• M6: 2,738,389 km (0.087 R)
• M7: 3,218,149 km (0.101 R)
• M8: 3,897,174 km (0.103 R)
• M9: 4,547,626 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.2

Radius: 13.9

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.61 AU - 0.77 AU

Year: 403 Days

Day: 8.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,192,817 km

• M1: 172,935 km (0.075 R)
• M2: 661,971 km (0.109 R)
• M3: 1,209,499 km (0.093 R)
• M4: 1,712,447 km (0.115 R)
• M5: 2,222,127 km (0.047 R)
• M6: 2,670,472 km (0.082 R)
• M7: 3,254,801 km (0.074 R)
• M8: 3,730,522 km (0.054 R)
• M9: 4,464,449 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.1

Radius: 11

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.72 AU - 0.94 AU

Year: 532 Days

Day: 8.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,192,817 km

• M1: 136,882 km (0.106 R)
• M2: 509,830 km (0.083 R)
• M3: 1,041,800 km (0.113 R)
• M4: 1,438,533 km (0.07 R)
• M5: 1,883,587 km (0.111 R)
• M6: 2,411,218 km (0.079 R)
• M7: 3,262,879 km (0.117 R)
• M8: 3,619,670 km (0.074 R)
• M9: 3,989,925 km (0.027 R)
• M10: 4,481,503 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148

Radius: 10.3

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.04 AU - 1.44 AU

Year: 971 Days

Day: 13.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,192,817 km

• M1: 128,056 km (0.052 R)
• M2: 464,801 km (0.081 R)
• M3: 871,408 km (0.113 R)
• M4: 1,471,145 km (0.12 R)
• M5: 1,973,196 km (0.106 R)
• M6: 2,319,964 km (0.093 R)
• M7: 2,832,336 km (0.031 R)
• M8: 3,382,857 km (0.077 R)
• M9: 3,936,818 km (0.094 R)
• M10: 4,419,869 km (0.074 R)
• M11: 5,968,207 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.1

Radius: 8.7

Gravity: 9.21 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.2 AU - 1.98 AU

Year: 1409 Days

Day: 9.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 66.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,192,817 km

• M1: 108,907 km (0.035 R)
• M2: 639,980 km (0.093 R)
• M3: 987,645 km (0.089 R)
• M4: 1,775,876 km (0.099 R)
• M5: 2,135,809 km (0.093 R)
• M6: 3,076,331 km (0.037 R)
• M7: 3,455,112 km (0.079 R)
• M8: 4,841,286 km (0.115 R)
• M9: 5,291,725 km (0.096 R)
• M10: 6,065,894 km (0.101 R)
• M11: 6,737,888 km (0.096 R)
• M12: 7,143,747 km (0.09 R)
• M13: 7,673,772 km (0.082 R)
• M14: 8,962,408 km (0.07 R)
• M15: 9,267,438 km (0.107 R)
• M16: 9,642,480 km (0.055 R)
• M17: 10,897,457 km (0.098 R)
• M18: 11,708,128 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.1

Radius: 12.6

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 3.36 AU - 4.08 AU

Year: 5043 Days

Day: 9.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 69,192,817 km

• M1: 156,779 km (0.09 R)
• M2: 647,310 km (0.097 R)
• M3: 1,418,188 km (0.089 R)
• M4: 1,908,719 km (0.073 R)
• M5: 3,240,888 km (0.12 R)
• M6: 4,154,183 km (0.067 R)
• M7: 4,711,286 km (0.092 R)
• M8: 5,232,186 km (0.075 R)
• M9: 5,852,418 km (0.112 R)
• M10: 6,389,923 km (0.111 R)
• M11: 6,789,051 km (0.104 R)
• M12: 7,674,670 km (0.095 R)
• M13: 10,704,176 km (0.116 R)
• M14: 11,558,979 km (0.064 R)
• M15: 12,103,365 km (0.08 R)
• M16: 12,873,346 km (0.112 R)
• M17: 14,682,283 km (0.088 R)
• M18: 16,161,357 km (0.074 R)
• M19: 18,462,771 km (0.091 R)
• M20: 19,002,520 km (0.107 R)
• M21: 21,120,676 km (0.06 R)
• M22: 24,425,144 km (0.112 R)
• M23: 26,497,074 km (0.12 R)
• M24: 29,408,249 km (0.097 R)
• M25: 31,177,842 km (0.062 R)
• M26: 31,943,783 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 432.4

Radius: 6.9

Gravity: 9.08 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 9.65 AU - 10.11 AU

Year: 21829 Days

Day: 18.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 69,192,817 km

• M1: 86,019 km (0.07 R)
• M2: 328,517 km (0.113 R)
• M3: 1,446,013 km (0.099 R)
• M4: 1,719,478 km (0.103 R)
• M5: 2,778,032 km (0.106 R)
• M6: 3,586,310 km (0.111 R)
• M7: 4,642,620 km (0.086 R)
• M8: 4,918,778 km (0.065 R)
• M9: 5,242,508 km (0.092 R)
• M10: 7,352,735 km (0.087 R)
• M11: 7,872,738 km (0.073 R)
• M12: 10,200,480 km (0.105 R)
• M13: 11,836,184 km (0.073 R)
• M14: 12,222,146 km (0.094 R)
• M15: 13,155,338 km (0.027 R)
• M16: 19,863,605 km (0.095 R)
• M17: 22,007,492 km (0.042 R)
• M18: 22,395,549 km (0.105 R)
• M19: 23,085,495 km (0.057 R)
• M20: 24,507,722 km (0.11 R)
• M21: 26,095,404 km (0.091 R)
• M22: 26,530,135 km (0.064 R)
• M23: 32,005,567 km (0.067 R)
• M24: 33,387,851 km (0.069 R)
• M25: 34,809,330 km (0.101 R)
• M26: 35,868,184 km (0.066 R)
• M27: 36,676,312 km (0.071 R)
• M28: 37,084,863 km (0.064 R)
• M29: 39,173,399 km (0.04 R)
• M30: 41,633,686 km (0.087 R)
• M31: 44,349,186 km (0.071 R)
• M32: 45,750,021 km (0.064 R)
• M33: 49,796,045 km (0.106 R)
• M34: 52,852,629 km (0.057 R)
• M35: 60,655,803 km (0.072 R)
• M36: 63,548,876 km (0.096 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 325 - 10,612 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit