🌌 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: 434.9

Radius: 14.1

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.53 AU - 0.61 AU

Year: 297 Days

Day: 6.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 74,171,417 km

• M1: 175,329 km (0.075 R)
• M2: 658,829 km (0.087 R)
• M3: 1,115,103 km (0.046 R)
• M4: 1,590,674 km (0.043 R)
• M5: 2,357,962 km (0.073 R)
• M6: 3,526,620 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.8

Radius: 14.7

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.64 AU - 0.82 AU

Year: 431 Days

Day: 13.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 74,171,417 km

• M1: 182,958 km (0.069 R)
• M2: 804,837 km (0.115 R)
• M3: 1,440,777 km (0.119 R)
• M4: 2,236,488 km (0.093 R)
• M5: 3,839,280 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 443.6

Radius: 10.8

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.66 AU - 0.84 AU

Year: 448 Days

Day: 6.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,171,417 km

• M1: 134,339 km (0.067 R)
• M2: 525,837 km (0.089 R)
• M3: 906,413 km (0.048 R)
• M4: 1,326,185 km (0.112 R)
• M5: 1,816,717 km (0.113 R)
• M6: 2,242,771 km (0.116 R)
• M7: 2,658,055 km (0.094 R)
• M8: 3,113,730 km (0.068 R)
• M9: 3,492,213 km (0.112 R)
• M10: 4,249,178 km (0.067 R)
• M11: 4,860,584 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248.9

Radius: 10.6

Gravity: 2.22 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.65 AU - 0.99 AU

Year: 513 Days

Day: 11.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,171,417 km

• M1: 131,796 km (0.112 R)
• M2: 623,524 km (0.096 R)
• M3: 1,013,077 km (0.11 R)
• M4: 1,397,543 km (0.109 R)
• M5: 1,766,900 km (0.1 R)
• M6: 2,193,853 km (0.109 R)
• M7: 2,652,071 km (0.111 R)
• M8: 2,999,288 km (0.087 R)
• M9: 3,623,260 km (0.112 R)
• M10: 4,542,988 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.1

Radius: 10.3

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.82 AU - 0.82 AU

Year: 513 Days

Day: 9.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,171,417 km

• M1: 128,804 km (0.065 R)
• M2: 591,959 km (0.119 R)
• M3: 1,070,672 km (0.086 R)
• M4: 1,497,175 km (0.039 R)
• M5: 2,127,731 km (0.088 R)
• M6: 2,750,955 km (0.103 R)
• M7: 3,762,237 km (0.114 R)
• M8: 5,004,946 km (0.047 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.6

Radius: 14.5

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.84 AU - 0.9 AU

Year: 560 Days

Day: 11.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,171,417 km

• M1: 180,265 km (0.026 R)
• M2: 756,217 km (0.068 R)
• M3: 1,350,270 km (0.064 R)
• M4: 1,828,535 km (0.115 R)
• M5: 2,352,427 km (0.053 R)
• M6: 3,012,004 km (0.115 R)
• M7: 3,470,671 km (0.103 R)
• M8: 4,019,545 km (0.077 R)
• M9: 4,935,683 km (0.064 R)
• M10: 5,417,088 km (0.089 R)
• M11: 6,475,493 km (0.104 R)
• M12: 6,927,429 km (0.05 R)
• M13: 7,488,720 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 196.1

Radius: 12.5

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.68 AU - 1.12 AU

Year: 589 Days

Day: 11.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,171,417 km

• M1: 155,582 km (0.067 R)
• M2: 557,850 km (0.061 R)
• M3: 972,685 km (0.081 R)
• M4: 1,492,239 km (0.085 R)
• M5: 1,919,341 km (0.099 R)
• M6: 2,343,600 km (0.111 R)
• M7: 2,850,288 km (0.08 R)
• M8: 3,541,131 km (0.09 R)
• M9: 4,674,036 km (0.08 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.1

Radius: 12.7

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.06 AU - 2.26 AU

Year: 2191 Days

Day: 6.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,171,417 km

• M1: 157,975 km (0.102 R)
• M2: 622,926 km (0.087 R)
• M3: 1,049,878 km (0.096 R)
• M4: 1,773,932 km (0.053 R)
• M5: 2,352,576 km (0.06 R)
• M6: 3,525,872 km (0.064 R)
• M7: 4,078,786 km (0.068 R)
• M8: 4,765,141 km (0.075 R)
• M9: 5,318,952 km (0.084 R)
• M10: 6,723,676 km (0.098 R)
• M11: 7,656,868 km (0.076 R)
• M12: 8,058,987 km (0.082 R)
• M13: 8,964,353 km (0.115 R)
• M14: 9,904,875 km (0.07 R)
• M15: 10,415,602 km (0.111 R)
• M16: 11,982,341 km (0.099 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 106.4

Radius: 12.2

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.97 AU - 4.61 AU

Year: 5093 Days

Day: 13.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,171,417 km

• M1: 153,487 km (0.077 R)
• M2: 1,139,936 km (0.069 R)
• M3: 1,529,189 km (0.115 R)
• M4: 2,743,924 km (0.086 R)
• M5: 5,048,330 km (0.043 R)
• M6: 7,788,813 km (0.076 R)
• M7: 8,739,956 km (0.081 R)
• M8: 11,360,313 km (0.078 R)
• M9: 13,331,713 km (0.05 R)
• M10: 13,891,060 km (0.115 R)
• M11: 14,555,723 km (0.092 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 921.6

Radius: 7.5

Gravity: 16.38 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 7.53 AU - 9.13 AU

Year: 16595 Days

Day: 19.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 74,171,417 km

• M1: 124,465 km (0.117 R)
• M2: 408,253 km (0.092 R)
• M3: 651,050 km (0.073 R)
• M4: 1,440,927 km (0.117 R)
• M5: 1,808,189 km (0.095 R)
• M6: 2,386,684 km (0.109 R)
• M7: 3,161,751 km (0.119 R)
• M8: 3,755,056 km (0.048 R)
• M9: 4,255,162 km (0.111 R)
• M10: 5,311,772 km (0.052 R)
• M11: 7,541,378 km (0.093 R)
• M12: 7,982,393 km (0.075 R)
• M13: 9,353,008 km (0.098 R)
• M14: 11,500,636 km (0.06 R)
• M15: 12,284,080 km (0.075 R)
• M16: 14,546,747 km (0.089 R)
• M17: 16,335,339 km (0.117 R)
• M18: 20,063,767 km (0.091 R)
• M19: 26,050,375 km (0.101 R)
• M20: 26,831,276 km (0.063 R)
• M21: 27,284,557 km (0.111 R)
• M22: 28,557,037 km (0.082 R)
• M23: 34,309,224 km (0.066 R)
• M24: 34,977,478 km (0.047 R)
• M25: 37,034,299 km (0.091 R)
• M26: 38,736,873 km (0.107 R)
• M27: 39,170,557 km (0.12 R)
• M28: 39,753,839 km (0.119 R)
• M29: 40,937,607 km (0.11 R)
• M30: 47,705,863 km (0.093 R)
• M31: 56,470,354 km (0.099 R)
• M32: 60,644,733 km (0.072 R)
• M33: 61,034,136 km (0.098 R)
• M34: 61,818,029 km (0.058 R)
• M35: 62,807,170 km (0.093 R)
• M36: 66,249,267 km (0.105 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 229 - 17,175 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit