🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.8

Radius: 13.8

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.69 AU - 0.97 AU

Year: 488 Days

Day: 8.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,803,145 km

• M1: 171,589 km (0.105 R)
• M2: 629,657 km (0.046 R)
• M3: 1,067,680 km (0.088 R)
• M4: 1,613,114 km (0.117 R)
• M5: 2,061,459 km (0.086 R)
• M6: 2,883,948 km (0.078 R)
• M7: 3,384,203 km (0.09 R)
• M8: 4,091,502 km (0.101 R)
• M9: 4,711,585 km (0.114 R)
• M10: 5,197,030 km (0.066 R)
• M11: 5,715,985 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.7

Radius: 14.5

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.9 AU - 0.94 AU

Year: 570 Days

Day: 10.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,803,145 km

• M1: 180,565 km (0.113 R)
• M2: 689,945 km (0.119 R)
• M3: 1,445,415 km (0.12 R)
• M4: 2,025,106 km (0.116 R)
• M5: 2,584,004 km (0.045 R)
• M6: 3,404,997 km (0.111 R)
• M7: 3,865,011 km (0.099 R)
• M8: 4,534,162 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 181.1

Radius: 13.2

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.29 AU - 2.41 AU

Year: 2326 Days

Day: 9 Hours

Environment

Temp: -190 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,803,145 km

• M1: 164,258 km (0.119 R)
• M2: 607,068 km (0.078 R)
• M3: 1,230,592 km (0.105 R)
• M4: 1,920,837 km (0.083 R)
• M5: 2,449,067 km (0.058 R)
• M6: 2,951,416 km (0.102 R)
• M7: 3,660,959 km (0.059 R)
• M8: 4,166,749 km (0.113 R)
• M9: 5,101,138 km (0.116 R)
• M10: 5,566,238 km (0.099 R)
• M11: 6,059,611 km (0.089 R)
• M12: 6,676,104 km (0.113 R)
• M13: 9,009,681 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.5

Radius: 9.6

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.33 AU - 2.71 AU

Year: 2583 Days

Day: 11.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 44,803,145 km

• M1: 119,379 km (0.09 R)
• M2: 637,437 km (0.073 R)
• M3: 3,077,228 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.5

Radius: 12.5

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 2.26 AU - 2.96 AU

Year: 2723 Days

Day: 5.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,803,145 km

• M1: 156,928 km (0.085 R)
• M2: 595,699 km (0.045 R)
• M3: 1,188,555 km (0.03 R)
• M4: 2,209,561 km (0.103 R)
• M5: 2,936,756 km (0.105 R)
• M6: 3,907,796 km (0.071 R)
• M7: 5,017,213 km (0.085 R)
• M8: 5,810,980 km (0.108 R)
• M9: 7,998,699 km (0.113 R)
• M10: 8,513,316 km (0.103 R)
• M11: 12,080,028 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.6

Radius: 11.2

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.54 AU - 2.86 AU

Year: 2865 Days

Day: 5.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,803,145 km

• M1: 141,819 km (0.079 R)
• M2: 2,025,705 km (0.109 R)
• M3: 2,667,779 km (0.083 R)
• M4: 3,097,125 km (0.11 R)
• M5: 3,622,662 km (0.104 R)
• M6: 4,077,888 km (0.075 R)
• M7: 5,363,981 km (0.082 R)
• M8: 5,747,251 km (0.112 R)
• M9: 9,028,830 km (0.099 R)
• M10: 9,936,590 km (0.063 R)
• M11: 14,184,571 km (0.041 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.7

Radius: 10.3

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.07 AU - 3.43 AU

Year: 3783 Days

Day: 6.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,803,145 km

• M1: 128,056 km (0.082 R)
• M2: 545,583 km (0.083 R)
• M3: 1,286,392 km (0.032 R)
• M4: 1,664,725 km (0.104 R)
• M5: 2,379,504 km (0.066 R)
• M6: 2,983,131 km (0.097 R)
• M7: 3,568,807 km (0.109 R)
• M8: 4,037,347 km (0.073 R)
• M9: 5,135,545 km (0.067 R)
• M10: 7,071,192 km (0.061 R)
• M11: 8,421,911 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 621.2

Radius: 5.4

Gravity: 21.3 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 4.81 AU - 7.19 AU

Year: 9489 Days

Day: 18.7 Hours

Environment

Temp: -211 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 44,803,145 km

• M1: 67,169 km (0.053 R)
• M2: 441,463 km (0.099 R)
• M3: 662,719 km (0.07 R)
• M4: 1,059,751 km (0.118 R)
• M5: 1,779,317 km (0.1 R)
• M6: 1,952,551 km (0.071 R)
• M7: 3,150,382 km (0.058 R)
• M8: 3,624,008 km (0.117 R)
• M9: 9,778,465 km (0.111 R)
• M10: 13,223,105 km (0.095 R)
• M11: 15,150,076 km (0.108 R)
• M12: 22,800,660 km (0.104 R)
• M13: 22,971,950 km (0.109 R)
• M14: 27,058,664 km (0.062 R)
• M15: 30,346,078 km (0.091 R)
• M16: 31,817,672 km (0.112 R)
• M17: 34,562,793 km (0.106 R)
• M18: 39,031,431 km (0.077 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 314 - 16,792 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit