🌌 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: 127.8

Radius: 13.5

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.45 AU - 0.69 AU

Year: 302 Days

Day: 5.9 Hours

Environment

Temp: -155 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 53,453,012 km

• M1: 167,849 km (0.077 R)
• M2: 629,209 km (0.069 R)
• M3: 1,089,970 km (0.102 R)
• M4: 1,763,460 km (0.113 R)
• M5: 2,270,148 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837.9

Radius: 10.1

Gravity: 8.21 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.62 AU - 0.7 AU

Year: 377 Days

Day: 5.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 53,453,012 km

• M1: 125,662 km (0.087 R)
• M2: 546,182 km (0.08 R)
• M3: 900,130 km (0.101 R)
• M4: 1,295,069 km (0.118 R)
• M5: 1,905,877 km (0.045 R)
• M6: 2,309,492 km (0.104 R)
• M7: 2,739,436 km (0.04 R)
• M8: 3,267,816 km (0.101 R)
• M9: 3,748,623 km (0.061 R)
• M10: 4,139,822 km (0.106 R)
• M11: 4,529,375 km (0.07 R)
• M12: 5,097,248 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 185.1

Radius: 14.5

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.82 AU - 1.3 AU

Year: 767 Days

Day: 13.3 Hours

Environment

Temp: -175 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 53,453,012 km

• M1: 180,265 km (0.075 R)
• M2: 641,476 km (0.073 R)
• M3: 1,281,007 km (0.038 R)
• M4: 1,765,404 km (0.052 R)
• M5: 2,218,088 km (0.04 R)
• M6: 3,517,196 km (0.083 R)
• M7: 4,049,016 km (0.049 R)
• M8: 5,338,998 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.7

Radius: 11.4

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.77 AU - 1.99 AU

Year: 1812 Days

Day: 8 Hours

Environment

Temp: -193 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 53,453,012 km

• M1: 141,819 km (0.094 R)
• M2: 542,442 km (0.075 R)
• M3: 908,957 km (0.051 R)
• M4: 1,471,893 km (0.107 R)
• M5: 1,834,967 km (0.04 R)
• M6: 2,209,710 km (0.043 R)
• M7: 2,680,495 km (0.085 R)
• M8: 3,092,338 km (0.101 R)
• M9: 4,319,489 km (0.117 R)
• M10: 4,704,853 km (0.045 R)
• M11: 6,545,056 km (0.056 R)
• M12: 7,569,353 km (0.102 R)
• M13: 8,036,248 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 786.4

Radius: 11.2

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 3.03 AU - 3.23 AU

Year: 3892 Days

Day: 12.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,453,012 km

• M1: 139,425 km (0.105 R)
• M2: 511,924 km (0.104 R)
• M3: 924,664 km (0.089 R)
• M4: 1,320,052 km (0.107 R)
• M5: 1,754,933 km (0.104 R)
• M6: 2,974,006 km (0.083 R)
• M7: 4,284,184 km (0.118 R)
• M8: 6,954,655 km (0.107 R)
• M9: 11,685,987 km (0.041 R)
• M10: 12,149,591 km (0.073 R)
• M11: 13,163,416 km (0.102 R)
• M12: 17,069,566 km (0.105 R)
• M13: 18,216,682 km (0.113 R)
• M14: 18,714,694 km (0.117 R)
• M15: 19,414,363 km (0.059 R)
• M16: 21,274,164 km (0.111 R)
• M17: 26,438,731 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 254.5

Radius: 4.9

Gravity: 10.6 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 6.31 AU - 9.71 AU

Year: 15935 Days

Day: 20.1 Hours

Environment

Temp: -241 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 53,453,012 km

• M1: 62,682 km (0.049 R)
• M2: 398,529 km (0.069 R)
• M3: 934,687 km (0.045 R)
• M4: 1,241,962 km (0.108 R)
• M5: 2,022,563 km (0.105 R)
• M6: 3,952,226 km (0.07 R)
• M7: 4,660,722 km (0.053 R)
• M8: 8,262,141 km (0.096 R)
• M9: 9,557,210 km (0.111 R)
• M10: 10,252,989 km (0.041 R)
• M11: 19,009,401 km (0.101 R)
• M12: 23,385,588 km (0.12 R)
• M13: 26,042,745 km (0.059 R)
• M14: 33,383,214 km (0.101 R)
• M15: 37,582,875 km (0.086 R)
• M16: 42,515,116 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 204.9

Radius: 3.9

Gravity: 13.47 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 8.28 AU - 11.3 AU

Year: 21532 Days

Day: 22.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 83.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 53,453,012 km

• M1: 48,470 km (0.055 R)
• M2: 182,809 km (0.075 R)
• M3: 1,258,866 km (0.092 R)
• M4: 1,765,853 km (0.052 R)
• M5: 2,458,043 km (0.037 R)
• M6: 6,684,033 km (0.091 R)
• M7: 7,008,361 km (0.077 R)
• M8: 7,557,535 km (0.069 R)
• M9: 7,954,268 km (0.067 R)
• M10: 8,933,686 km (0.077 R)
• M11: 10,961,036 km (0.077 R)
• M12: 11,128,586 km (0.074 R)
• M13: 18,602,794 km (0.112 R)
• M14: 18,761,518 km (0.068 R)
• M15: 19,081,956 km (0.075 R)
• M16: 25,197,218 km (0.105 R)
• M17: 30,805,792 km (0.103 R)
• M18: 41,498,449 km (0.046 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 331 - 12,401 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit