🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.6

Radius: 11.4

Gravity: 5.97 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.49 AU - 0.57 AU

Year: 257 Days

Day: 6.3 Hours

Environment

Temp: -141 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,603,115 km

• M1: 141,968 km (0.109 R)
• M2: 557,102 km (0.093 R)
• M3: 967,898 km (0.076 R)
• M4: 1,347,278 km (0.106 R)
• M5: 1,848,730 km (0.086 R)
• M6: 2,594,177 km (0.038 R)
• M7: 3,151,578 km (0.105 R)
• M8: 3,540,982 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.6

Radius: 13

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.58 AU - 0.68 AU

Year: 333 Days

Day: 14.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,603,115 km

• M1: 162,314 km (0.052 R)
• M2: 706,850 km (0.078 R)
• M3: 1,124,976 km (0.083 R)
• M4: 1,867,580 km (0.1 R)
• M5: 2,536,731 km (0.1 R)
• M6: 3,406,942 km (0.076 R)
• M7: 3,824,619 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.4

Radius: 14

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.04 AU - 1.18 AU

Year: 780 Days

Day: 11.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,603,115 km

• M1: 186,997 km (0.033 R)
• M2: 660,923 km (0.094 R)
• M3: 1,395,000 km (0.033 R)
• M4: 2,051,585 km (0.079 R)
• M5: 3,223,984 km (0.108 R)
• M6: 3,894,631 km (0.084 R)
• M7: 4,576,348 km (0.103 R)
• M8: 5,022,898 km (0.106 R)
• M9: 6,318,864 km (0.061 R)
• M10: 6,874,621 km (0.098 R)
• M11: 7,735,108 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.2

Radius: 9.5

Gravity: 7.56 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.18 AU - 1.88 AU

Year: 1262 Days

Day: 15 Hours

Environment

Temp: -199 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,603,115 km

• M1: 118,482 km (0.093 R)
• M2: 440,117 km (0.082 R)
• M3: 762,201 km (0.06 R)
• M4: 1,120,189 km (0.08 R)
• M5: 2,016,878 km (0.101 R)
• M6: 2,642,796 km (0.119 R)
• M7: 2,987,918 km (0.058 R)
• M8: 3,753,261 km (0.109 R)
• M9: 4,738,213 km (0.095 R)
• M10: 5,353,061 km (0.078 R)
• M11: 5,690,703 km (0.103 R)
• M12: 7,035,887 km (0.067 R)
• M13: 7,493,657 km (0.071 R)
• M14: 8,356,238 km (0.049 R)
• M15: 8,724,997 km (0.057 R)
• M16: 9,495,426 km (0.114 R)
• M17: 10,407,374 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 204

Radius: 12.5

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.42 AU - 1.78 AU

Year: 1350 Days

Day: 13.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,603,115 km

• M1: 155,432 km (0.112 R)
• M2: 721,062 km (0.073 R)
• M3: 1,201,271 km (0.098 R)
• M4: 1,646,474 km (0.103 R)
• M5: 2,731,807 km (0.078 R)
• M6: 5,636,698 km (0.061 R)
• M7: 6,323,502 km (0.034 R)
• M8: 8,007,675 km (0.049 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.8

Radius: 8.3

Gravity: 11.71 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.8 AU - 1.8 AU

Year: 1610 Days

Day: 12.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 162.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 55,603,115 km

• M1: 103,223 km (0.086 R)
• M2: 517,160 km (0.08 R)
• M3: 952,340 km (0.112 R)
• M4: 1,414,448 km (0.045 R)
• M5: 1,790,387 km (0.09 R)
• M6: 2,647,134 km (0.071 R)
• M7: 3,082,315 km (0.11 R)
• M8: 4,865,222 km (0.112 R)
• M9: 5,429,056 km (0.104 R)
• M10: 5,773,879 km (0.073 R)
• M11: 6,976,347 km (0.108 R)
• M12: 7,411,976 km (0.114 R)
• M13: 7,982,094 km (0.113 R)
• M14: 8,428,494 km (0.045 R)
• M15: 9,436,484 km (0.11 R)
• M16: 10,914,960 km (0.079 R)
• M17: 11,502,580 km (0.061 R)
• M18: 11,766,172 km (0.097 R)
• M19: 12,227,532 km (0.115 R)
• M20: 13,433,739 km (0.1 R)
• M21: 13,810,576 km (0.088 R)
• M22: 14,761,570 km (0.044 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.9

Radius: 11.9

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 2.25 AU - 3.73 AU

Year: 3448 Days

Day: 5.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,603,115 km

• M1: 147,952 km (0.112 R)
• M2: 609,611 km (0.07 R)
• M3: 1,160,580 km (0.116 R)
• M4: 1,537,118 km (0.08 R)
• M5: 2,607,341 km (0.084 R)
• M6: 3,064,363 km (0.093 R)
• M7: 4,745,244 km (0.066 R)
• M8: 5,163,670 km (0.084 R)
• M9: 6,513,192 km (0.117 R)
• M10: 7,061,019 km (0.071 R)
• M11: 8,753,121 km (0.072 R)
• M12: 11,139,057 km (0.063 R)
• M13: 17,757,566 km (0.104 R)
• M14: 19,703,984 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.3

Radius: 8.2

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.82 AU - 3.54 AU

Year: 3782 Days

Day: 6.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,603,115 km

• M1: 102,026 km (0.118 R)
• M2: 373,995 km (0.106 R)
• M3: 746,643 km (0.025 R)
• M4: 1,013,077 km (0.058 R)
• M5: 1,509,293 km (0.086 R)
• M6: 2,056,073 km (0.076 R)
• M7: 2,489,757 km (0.092 R)
• M8: 2,997,792 km (0.117 R)
• M9: 3,410,981 km (0.063 R)
• M10: 4,002,641 km (0.096 R)
• M11: 4,313,804 km (0.084 R)
• M12: 4,821,091 km (0.09 R)
• M13: 6,215,492 km (0.112 R)
• M14: 6,508,854 km (0.096 R)
• M15: 7,804,371 km (0.114 R)
• M16: 8,829,416 km (0.11 R)
• M17: 10,007,798 km (0.027 R)
• M18: 10,617,559 km (0.11 R)

Asteroid Belt

Center: 5.4 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 545.6

Radius: 7.7

Gravity: 9.2 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 7.54 AU - 7.68 AU

Year: 13999 Days

Day: 20.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 55,603,115 km

• M1: 103,522 km (0.06 R)
• M2: 345,122 km (0.098 R)
• M3: 602,431 km (0.113 R)
• M4: 1,421,778 km (0.108 R)
• M5: 4,063,078 km (0.101 R)
• M6: 5,533,924 km (0.051 R)
• M7: 6,389,175 km (0.054 R)
• M8: 6,828,096 km (0.069 R)
• M9: 7,589,549 km (0.09 R)
• M10: 9,739,719 km (0.051 R)
• M11: 10,593,324 km (0.075 R)
• M12: 11,322,764 km (0.071 R)
• M13: 14,783,561 km (0.112 R)
• M14: 16,940,313 km (0.099 R)
• M15: 17,781,053 km (0.081 R)
• M16: 18,489,399 km (0.113 R)
• M17: 22,679,935 km (0.116 R)
• M18: 37,409,042 km (0.098 R)
• M19: 50,599,236 km (0.111 R)
• M20: 50,912,643 km (0.083 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 534 - 16,964 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit