🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.2

Radius: 9.4

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.7 AU - 0.78 AU

Year: 439 Days

Day: 13.1 Hours

Environment

Temp: -164 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,071,790 km

• M1: 116,986 km (0.094 R)
• M2: 675,135 km (0.107 R)
• M3: 1,194,240 km (0.082 R)
• M4: 1,495,680 km (0.081 R)
• M5: 2,045,751 km (0.119 R)
• M6: 2,944,236 km (0.102 R)
• M7: 3,616,080 km (0.09 R)
• M8: 4,073,550 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.5

Radius: 8.5

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.91 AU - 1.13 AU

Year: 711 Days

Day: 14.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,071,790 km

• M1: 105,766 km (0.056 R)
• M2: 458,966 km (0.044 R)
• M3: 736,620 km (0.069 R)
• M4: 1,063,940 km (0.11 R)
• M5: 1,633,609 km (0.092 R)
• M6: 3,069,449 km (0.11 R)
• M7: 3,626,103 km (0.107 R)
• M8: 4,471,181 km (0.098 R)
• M9: 5,321,645 km (0.119 R)
• M10: 6,468,163 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.7

Radius: 10.2

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.11 AU - 1.17 AU

Year: 840 Days

Day: 12.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,071,790 km

• M1: 131,497 km (0.038 R)
• M2: 854,802 km (0.093 R)
• M3: 1,663,678 km (0.107 R)
• M4: 2,225,268 km (0.072 R)
• M5: 2,851,186 km (0.118 R)
• M6: 3,631,488 km (0.112 R)
• M7: 3,969,430 km (0.097 R)
• M8: 4,709,341 km (0.103 R)
• M9: 6,982,481 km (0.098 R)
• M10: 7,307,856 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.3

Radius: 9.8

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.37 AU - 2.05 AU

Year: 1543 Days

Day: 10.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 102.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 54,071,790 km

• M1: 123,269 km (0.099 R)
• M2: 1,244,505 km (0.086 R)
• M3: 1,989,352 km (0.062 R)
• M4: 2,902,199 km (0.056 R)
• M5: 3,571,350 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.5

Radius: 12.7

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 3.07 AU - 3.91 AU

Year: 4500 Days

Day: 13.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,071,790 km

• M1: 157,975 km (0.092 R)
• M2: 558,449 km (0.12 R)
• M3: 1,021,903 km (0.039 R)
• M4: 2,851,485 km (0.107 R)
• M5: 3,254,801 km (0.109 R)
• M6: 4,933,439 km (0.12 R)
• M7: 5,621,738 km (0.059 R)
• M8: 7,069,547 km (0.104 R)
• M9: 9,357,197 km (0.117 R)
• M10: 10,610,079 km (0.117 R)
• M11: 11,051,692 km (0.106 R)
• M12: 12,144,505 km (0.107 R)
• M13: 13,215,925 km (0.107 R)
• M14: 13,774,822 km (0.099 R)
• M15: 14,252,638 km (0.105 R)
• M16: 15,856,178 km (0.088 R)
• M17: 17,744,551 km (0.099 R)
• M18: 18,196,487 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.6

Radius: 11.8

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 4.34 AU - 6.58 AU

Year: 8806 Days

Day: 6.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 54,071,790 km

• M1: 146,756 km (0.104 R)
• M2: 882,777 km (0.054 R)
• M3: 2,075,670 km (0.109 R)
• M4: 2,755,892 km (0.079 R)
• M5: 8,669,645 km (0.067 R)
• M6: 10,302,656 km (0.036 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 314.5

Radius: 3.9

Gravity: 20.68 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 7.57 AU - 9.81 AU

Year: 17682 Days

Day: 23.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,071,790 km

• M1: 193,580 km (0.072 R)
• M2: 631,602 km (0.066 R)
• M3: 795,262 km (0.095 R)
• M4: 1,285,943 km (0.074 R)
• M5: 2,943,189 km (0.079 R)
• M6: 3,083,661 km (0.084 R)
• M7: 3,610,694 km (0.025 R)
• M8: 4,195,622 km (0.079 R)
• M9: 4,841,286 km (0.107 R)
• M10: 5,037,260 km (0.115 R)
• M11: 7,384,749 km (0.101 R)
• M12: 11,717,552 km (0.102 R)
• M13: 14,544,952 km (0.116 R)
• M14: 17,185,504 km (0.109 R)
• M15: 23,022,364 km (0.04 R)
• M16: 37,368,202 km (0.099 R)
• M17: 44,207,218 km (0.098 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: 295 - 10,699 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit