🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.1

Radius: 8.8

Gravity: 8.86 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.83 AU - 0.87 AU

Year: 523 Days

Day: 8.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,241,603 km

• M1: 109,805 km (0.096 R)
• M2: 438,023 km (0.093 R)
• M3: 1,010,085 km (0.117 R)
• M4: 1,429,557 km (0.109 R)
• M5: 2,022,563 km (0.082 R)
• M6: 2,459,539 km (0.115 R)
• M7: 3,460,348 km (0.087 R)
• M8: 4,130,547 km (0.118 R)
• M9: 4,542,091 km (0.059 R)
• M10: 5,499,517 km (0.103 R)
• M11: 6,663,987 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 182.4

Radius: 9.1

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.36 AU - 1.38 AU

Year: 1069 Days

Day: 9.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,241,603 km

• M1: 113,246 km (0.081 R)
• M2: 434,731 km (0.054 R)
• M3: 1,136,345 km (0.071 R)
• M4: 1,695,093 km (0.064 R)
• M5: 2,168,571 km (0.106 R)
• M6: 3,208,874 km (0.11 R)
• M7: 3,908,992 km (0.112 R)
• M8: 5,645,824 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.9

Radius: 13.2

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.27 AU - 1.83 AU

Year: 1287 Days

Day: 9.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,241,603 km

• M1: 164,109 km (0.074 R)
• M2: 601,982 km (0.118 R)
• M3: 1,379,891 km (0.094 R)
• M4: 2,288,249 km (0.116 R)
• M5: 2,753,349 km (0.105 R)
• M6: 3,406,643 km (0.104 R)
• M7: 3,908,394 km (0.098 R)
• M8: 4,527,729 km (0.11 R)
• M9: 5,117,893 km (0.092 R)
• M10: 5,718,678 km (0.041 R)
• M11: 6,323,053 km (0.03 R)
• M12: 8,265,432 km (0.049 R)
• M13: 9,949,006 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705

Radius: 10

Gravity: 7.05 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.45 AU - 1.71 AU

Year: 1324 Days

Day: 7.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,241,603 km

• M1: 128,056 km (0.036 R)
• M2: 506,090 km (0.053 R)
• M3: 851,511 km (0.102 R)
• M4: 1,320,500 km (0.057 R)
• M5: 1,671,307 km (0.066 R)
• M6: 2,429,918 km (0.049 R)
• M7: 2,895,018 km (0.083 R)
• M8: 3,327,206 km (0.101 R)
• M9: 5,546,491 km (0.084 R)
• M10: 6,498,681 km (0.107 R)
• M11: 7,064,311 km (0.101 R)
• M12: 7,450,722 km (0.115 R)
• M13: 7,851,345 km (0.087 R)
• M14: 9,724,310 km (0.098 R)
• M15: 10,106,084 km (0.035 R)
• M16: 11,486,873 km (0.096 R)
• M17: 11,842,018 km (0.057 R)
• M18: 12,425,300 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283.1

Radius: 11.6

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.51 AU - 1.85 AU

Year: 1452 Days

Day: 7.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,241,603 km

• M1: 144,212 km (0.038 R)
• M2: 597,793 km (0.104 R)
• M3: 1,212,491 km (0.026 R)
• M4: 1,916,050 km (0.068 R)
• M5: 2,494,544 km (0.053 R)
• M6: 3,200,347 km (0.081 R)
• M7: 3,802,329 km (0.055 R)
• M8: 5,176,834 km (0.078 R)
• M9: 5,782,556 km (0.082 R)
• M10: 7,253,402 km (0.116 R)
• M11: 9,042,443 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.1

Radius: 12.2

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 2.87 AU - 2.89 AU

Year: 3259 Days

Day: 5.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 46.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,241,603 km

• M1: 151,692 km (0.111 R)
• M2: 1,885,382 km (0.066 R)
• M3: 2,395,062 km (0.092 R)
• M4: 2,900,852 km (0.087 R)
• M5: 4,728,489 km (0.102 R)
• M6: 5,188,653 km (0.099 R)
• M7: 6,689,119 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.6

Radius: 13.2

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 3.06 AU - 3.9 AU

Year: 4329 Days

Day: 8.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 164.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 42,241,603 km

• M1: 164,109 km (0.109 R)
• M2: 601,683 km (0.114 R)
• M3: 1,012,628 km (0.12 R)
• M4: 1,430,754 km (0.066 R)
• M5: 2,064,750 km (0.054 R)
• M6: 2,554,533 km (0.07 R)
• M7: 3,256,746 km (0.115 R)
• M8: 4,270,870 km (0.043 R)
• M9: 5,101,736 km (0.103 R)
• M10: 5,800,807 km (0.049 R)
• M11: 10,210,204 km (0.107 R)
• M12: 12,366,209 km (0.089 R)
• M13: 13,216,074 km (0.095 R)
• M14: 13,944,766 km (0.103 R)
• M15: 16,234,211 km (0.046 R)
• M16: 16,949,140 km (0.115 R)
• M17: 17,685,011 km (0.091 R)
• M18: 19,819,025 km (0.074 R)
• M19: 20,635,979 km (0.096 R)
• M20: 22,776,725 km (0.056 R)
• M21: 27,831,786 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 342.8

Radius: 5.3

Gravity: 12.2 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 6.03 AU - 7.47 AU

Year: 11695 Days

Day: 23.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,241,603 km

• M1: 65,973 km (0.116 R)
• M2: 1,094,608 km (0.084 R)
• M3: 4,529,076 km (0.084 R)
• M4: 6,203,824 km (0.108 R)
• M5: 9,359,292 km (0.074 R)
• M6: 10,511,644 km (0.031 R)
• M7: 17,018,254 km (0.115 R)
• M8: 19,470,911 km (0.074 R)
• M9: 25,332,455 km (0.069 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: 200 - 14,159 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit