🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.3

Radius: 9.2

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.75 AU - 0.85 AU

Year: 477 Days

Day: 12.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,445,606 km

• M1: 114,742 km (0.1 R)
• M2: 400,922 km (0.064 R)
• M3: 708,047 km (0.116 R)
• M4: 1,101,788 km (0.096 R)
• M5: 1,443,021 km (0.12 R)
• M6: 1,847,384 km (0.12 R)
• M7: 2,147,029 km (0.11 R)
• M8: 2,746,019 km (0.104 R)
• M9: 3,452,569 km (0.094 R)
• M10: 4,342,826 km (0.116 R)
• M11: 4,676,130 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.9

Radius: 8.8

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.39 AU - 2.25 AU

Year: 1637 Days

Day: 13.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,445,606 km

• M1: 109,506 km (0.094 R)
• M2: 443,857 km (0.101 R)
• M3: 853,306 km (0.088 R)
• M4: 1,139,637 km (0.063 R)
• M5: 1,806,693 km (0.058 R)
• M6: 2,146,430 km (0.112 R)
• M7: 3,267,367 km (0.098 R)
• M8: 3,865,160 km (0.083 R)
• M9: 4,190,536 km (0.114 R)
• M10: 4,618,685 km (0.11 R)
• M11: 5,296,662 km (0.11 R)
• M12: 5,698,931 km (0.039 R)
• M13: 7,052,044 km (0.114 R)
• M14: 7,876,777 km (0.095 R)
• M15: 8,530,071 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.7

Radius: 11.9

Gravity: 6.64 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.18 AU - 2.28 AU

Year: 2221 Days

Day: 9.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,445,606 km

• M1: 147,952 km (0.104 R)
• M2: 870,211 km (0.116 R)
• M3: 1,245,552 km (0.117 R)
• M4: 2,147,627 km (0.095 R)
• M5: 3,132,729 km (0.085 R)
• M6: 3,832,847 km (0.074 R)
• M7: 6,853,527 km (0.107 R)
• M8: 8,523,039 km (0.117 R)
• M9: 9,524,298 km (0.119 R)
• M10: 11,595,331 km (0.113 R)
• M11: 15,241,330 km (0.114 R)
• M12: 16,298,688 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968.8

Radius: 13.2

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 3.78 AU - 3.84 AU

Year: 4959 Days

Day: 6 Hours

Environment

Temp: -219 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,445,606 km

• M1: 173,833 km (0.111 R)
• M2: 645,515 km (0.115 R)
• M3: 1,183,020 km (0.081 R)
• M4: 1,849,628 km (0.086 R)
• M5: 2,596,570 km (0.11 R)
• M6: 3,324,065 km (0.084 R)
• M7: 4,110,800 km (0.101 R)
• M8: 5,775,824 km (0.098 R)
• M9: 6,475,194 km (0.096 R)
• M10: 7,159,455 km (0.116 R)
• M11: 7,741,091 km (0.066 R)
• M12: 8,753,570 km (0.11 R)
• M13: 10,573,129 km (0.098 R)
• M14: 12,529,270 km (0.029 R)
• M15: 14,091,072 km (0.052 R)
• M16: 16,453,671 km (0.088 R)
• M17: 17,147,207 km (0.1 R)
• M18: 18,795,925 km (0.115 R)
• M19: 20,404,102 km (0.105 R)
• M20: 21,575,753 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 677.9

Radius: 12.5

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.96 AU - 4.04 AU

Year: 5335 Days

Day: 5.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,445,606 km

• M1: 157,527 km (0.117 R)
• M2: 784,641 km (0.059 R)
• M3: 1,439,281 km (0.057 R)
• M4: 2,406,282 km (0.086 R)
• M5: 3,319,278 km (0.092 R)
• M6: 4,063,527 km (0.102 R)
• M7: 6,382,593 km (0.046 R)
• M8: 7,010,306 km (0.091 R)
• M9: 12,267,923 km (0.113 R)
• M10: 13,083,082 km (0.081 R)
• M11: 14,207,459 km (0.097 R)
• M12: 15,511,654 km (0.12 R)
• M13: 21,534,015 km (0.084 R)
• M14: 22,047,734 km (0.069 R)
• M15: 22,644,630 km (0.084 R)
• M16: 27,989,462 km (0.078 R)
• M17: 30,583,340 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.6

Radius: 11.9

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 4.17 AU - 4.89 AU

Year: 6429 Days

Day: 8.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,445,606 km

• M1: 151,094 km (0.089 R)
• M2: 523,593 km (0.045 R)
• M3: 1,386,323 km (0.116 R)
• M4: 2,551,541 km (0.076 R)
• M5: 3,312,546 km (0.068 R)
• M6: 5,800,657 km (0.054 R)
• M7: 6,814,333 km (0.107 R)
• M8: 12,206,139 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 246.2

Radius: 4.9

Gravity: 10.25 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 5.9 AU - 8.72 AU

Year: 13180 Days

Day: 19.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,445,606 km

• M1: 61,934 km (0.084 R)
• M2: 354,996 km (0.103 R)
• M3: 662,569 km (0.097 R)
• M4: 978,220 km (0.119 R)
• M5: 1,165,367 km (0.115 R)
• M6: 1,571,376 km (0.118 R)
• M7: 2,218,088 km (0.086 R)
• M8: 6,502,271 km (0.116 R)
• M9: 10,387,179 km (0.111 R)
• M10: 11,821,373 km (0.111 R)
• M11: 12,530,018 km (0.104 R)
• M12: 20,000,487 km (0.075 R)
• M13: 34,363,379 km (0.094 R)
• M14: 37,164,599 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 512.1

Radius: 5.8

Gravity: 15.22 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.88 AU - 9.18 AU

Year: 15174 Days

Day: 18.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 57,445,606 km

• M1: 72,106 km (0.061 R)
• M2: 325,226 km (0.097 R)
• M3: 510,727 km (0.089 R)
• M4: 743,202 km (0.118 R)
• M5: 1,115,851 km (0.054 R)
• M6: 1,400,236 km (0.106 R)
• M7: 2,287,651 km (0.097 R)
• M8: 2,839,218 km (0.057 R)
• M9: 3,397,517 km (0.098 R)
• M10: 3,608,001 km (0.067 R)
• M11: 3,827,312 km (0.038 R)
• M12: 4,292,561 km (0.099 R)
• M13: 4,893,047 km (0.115 R)
• M14: 5,620,242 km (0.041 R)
• M15: 5,878,000 km (0.069 R)
• M16: 6,946,727 km (0.057 R)
• M17: 7,286,912 km (0.098 R)
• M18: 8,000,494 km (0.078 R)
• M19: 8,759,554 km (0.03 R)
• M20: 13,679,828 km (0.068 R)
• M21: 14,418,243 km (0.086 R)
• M22: 16,047,513 km (0.082 R)
• M23: 17,874,402 km (0.084 R)
• M24: 22,299,807 km (0.116 R)
• M25: 27,508,804 km (0.112 R)
• M26: 29,557,697 km (0.087 R)
• M27: 31,475,093 km (0.107 R)
• M28: 34,934,843 km (0.069 R)
• M29: 35,306,593 km (0.043 R)
• M30: 35,806,400 km (0.051 R)
• M31: 37,076,486 km (0.085 R)
• M32: 39,170,557 km (0.077 R)
• M33: 43,879,748 km (0.085 R)
• M34: 49,418,161 km (0.109 R)
• M35: 52,112,119 km (0.079 R)
• M36: 57,445,582 km (0.112 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: 505 - 12,934 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit