🌌 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: 236.7

Radius: 13.8

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.53 AU - 0.61 AU

Year: 292 Days

Day: 6.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 28,240,959 km

• M1: 172,187 km (0.053 R)
• M2: 676,332 km (0.038 R)
• M3: 1,242,410 km (0.08 R)
• M4: 1,780,963 km (0.108 R)
• M5: 3,072,441 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.2

Radius: 9.3

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.61 AU - 0.81 AU

Year: 406 Days

Day: 8.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 28,240,959 km

• M1: 116,537 km (0.057 R)
• M2: 530,025 km (0.059 R)
• M3: 914,043 km (0.099 R)
• M4: 1,539,362 km (0.111 R)
• M5: 2,000,572 km (0.09 R)
• M6: 3,065,709 km (0.1 R)
• M7: 3,397,218 km (0.056 R)
• M8: 3,824,170 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.5

Radius: 12.2

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.61 AU - 0.97 AU

Year: 476 Days

Day: 8.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,240,959 km

• M1: 152,141 km (0.116 R)
• M2: 639,381 km (0.095 R)
• M3: 1,595,012 km (0.084 R)
• M4: 2,041,562 km (0.065 R)
• M5: 2,497,088 km (0.109 R)
• M6: 3,063,016 km (0.118 R)
• M7: 3,533,651 km (0.095 R)
• M8: 4,026,576 km (0.033 R)
• M9: 5,400,184 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.1

Radius: 13.9

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.42 AU - 1.64 AU

Year: 1284 Days

Day: 12.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,240,959 km

• M1: 172,935 km (0.046 R)
• M2: 614,249 km (0.077 R)
• M3: 1,052,271 km (0.082 R)
• M4: 1,816,866 km (0.092 R)
• M5: 2,443,980 km (0.104 R)
• M6: 3,041,624 km (0.108 R)
• M7: 3,639,567 km (0.106 R)
• M8: 4,741,056 km (0.071 R)
• M9: 6,734,747 km (0.087 R)
• M10: 7,650,435 km (0.093 R)
• M11: 8,362,072 km (0.102 R)
• M12: 9,147,461 km (0.071 R)
• M13: 9,635,748 km (0.098 R)
• M14: 10,798,573 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.4

Radius: 9.7

Gravity: 7.34 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.41 AU - 1.99 AU

Year: 1503 Days

Day: 10.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,240,959 km

• M1: 120,725 km (0.098 R)
• M2: 533,616 km (0.08 R)
• M3: 1,097,151 km (0.032 R)
• M4: 1,474,736 km (0.05 R)
• M5: 1,834,519 km (0.08 R)
• M6: 2,348,986 km (0.114 R)
• M7: 3,314,640 km (0.093 R)
• M8: 3,650,936 km (0.073 R)
• M9: 4,098,982 km (0.066 R)
• M10: 4,411,342 km (0.107 R)
• M11: 5,756,676 km (0.09 R)
• M12: 6,268,749 km (0.104 R)
• M13: 7,600,469 km (0.103 R)
• M14: 8,102,669 km (0.112 R)
• M15: 8,776,458 km (0.099 R)
• M16: 9,710,847 km (0.106 R)
• M17: 10,235,636 km (0.11 R)
• M18: 10,848,538 km (0.064 R)
• M19: 12,411,687 km (0.071 R)
• M20: 12,834,600 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.3

Radius: 14.5

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 4.18 AU - 4.54 AU

Year: 6175 Days

Day: 13.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 28,240,959 km

• M1: 189,092 km (0.106 R)
• M2: 714,479 km (0.071 R)
• M3: 1,165,816 km (0.105 R)
• M4: 1,640,939 km (0.113 R)
• M5: 3,339,922 km (0.056 R)
• M6: 4,605,071 km (0.073 R)
• M7: 7,549,157 km (0.115 R)
• M8: 8,254,661 km (0.088 R)
• M9: 9,626,922 km (0.072 R)
• M10: 19,048,746 km (0.109 R)
• M11: 20,641,365 km (0.037 R)
• M12: 22,246,400 km (0.092 R)
• M13: 23,156,254 km (0.06 R)
• M14: 29,505,188 km (0.108 R)
• M15: 31,350,927 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.9

Radius: 3.8

Gravity: 10.59 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 5.52 AU - 6.16 AU

Year: 9572 Days

Day: 23.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 28,240,959 km

• M1: 47,423 km (0.111 R)
• M2: 178,620 km (0.104 R)
• M3: 390,301 km (0.086 R)
• M4: 633,547 km (0.077 R)
• M5: 3,049,852 km (0.094 R)
• M6: 3,364,157 km (0.053 R)
• M7: 3,613,985 km (0.102 R)
• M8: 4,687,051 km (0.064 R)
• M9: 4,972,035 km (0.037 R)
• M10: 5,132,404 km (0.074 R)
• M11: 5,407,215 km (0.096 R)
• M12: 8,756,711 km (0.117 R)
• M13: 9,069,670 km (0.072 R)
• M14: 9,471,191 km (0.112 R)
• M15: 9,926,417 km (0.089 R)
• M16: 12,277,647 km (0.044 R)
• M17: 12,868,558 km (0.034 R)
• M18: 23,539,375 km (0.037 R)
• M19: 25,225,791 km (0.082 R)
• M20: 26,259,363 km (0.063 R)
• M21: 27,653,017 km (0.116 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 474 - 19,233 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit