🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.5

Radius: 8.3

Gravity: 12.61 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.45 AU - 0.59 AU

Year: 250 Days

Day: 5.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 9,517,184 km

• M1: 103,223 km (0.082 R)
• M2: 362,176 km (0.049 R)
• M3: 661,223 km (0.111 R)
• M4: 1,101,340 km (0.101 R)
• M5: 1,424,022 km (0.111 R)
• M6: 1,720,525 km (0.118 R)
• M7: 2,474,947 km (0.055 R)
• M8: 3,116,872 km (0.1 R)
• M9: 3,748,324 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.4

Radius: 8.6

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 0.76 AU - 0.84 AU

Year: 477 Days

Day: 9.6 Hours

Environment

Temp: -169 °C

Axial Tilt: 44.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 9,517,184 km

• M1: 107,411 km (0.063 R)
• M2: 390,899 km (0.035 R)
• M3: 838,646 km (0.095 R)
• M4: 2,820,668 km (0.1 R)
• M5: 3,277,241 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.6

Radius: 14.1

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.8 AU - 2.16 AU

Year: 1858 Days

Day: 7.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 9,517,184 km

• M1: 176,525 km (0.112 R)
• M2: 734,825 km (0.113 R)
• M3: 1,192,744 km (0.101 R)
• M4: 1,746,705 km (0.079 R)
• M5: 2,914,017 km (0.085 R)
• M6: 3,852,444 km (0.111 R)
• M7: 4,373,494 km (0.051 R)
• M8: 10,265,256 km (0.063 R)
• M9: 10,725,419 km (0.069 R)
• M10: 11,840,223 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.8

Radius: 12.7

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.21 AU - 2.29 AU

Year: 2251 Days

Day: 13.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 9,517,184 km

• M1: 171,888 km (0.084 R)
• M2: 925,113 km (0.1 R)
• M3: 2,466,420 km (0.119 R)
• M4: 4,619,133 km (0.057 R)
• M5: 5,246,996 km (0.038 R)
• M6: 5,690,553 km (0.098 R)
• M7: 7,260,134 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.3

Radius: 13.7

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 3.53 AU - 4.81 AU

Year: 5679 Days

Day: 11.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 9,517,184 km

• M1: 172,187 km (0.06 R)
• M2: 698,024 km (0.115 R)
• M3: 1,203,066 km (0.066 R)
• M4: 1,767,200 km (0.095 R)
• M5: 2,263,266 km (0.093 R)
• M6: 2,993,453 km (0.106 R)
• M7: 5,079,596 km (0.037 R)
• M8: 5,587,032 km (0.114 R)
• M9: 6,098,956 km (0.085 R)
• M10: 7,483,933 km (0.086 R)
• M11: 8,143,210 km (0.119 R)
• M12: 10,023,506 km (0.099 R)
• M13: 11,175,709 km (0.1 R)
• M14: 13,439,723 km (0.046 R)
• M15: 15,492,655 km (0.063 R)
• M16: 16,392,635 km (0.081 R)
• M17: 18,173,748 km (0.083 R)
• M18: 19,111,278 km (0.071 R)
• M19: 20,879,824 km (0.083 R)
• M20: 22,541,258 km (0.11 R)
• M21: 24,289,458 km (0.104 R)
• M22: 24,815,893 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.5

Radius: 12.3

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.51 AU - 5.11 AU

Year: 5967 Days

Day: 8.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 9,517,184 km

• M1: 159,621 km (0.083 R)
• M2: 743,352 km (0.107 R)
• M3: 1,295,667 km (0.093 R)
• M4: 2,014,485 km (0.052 R)
• M5: 2,574,280 km (0.084 R)
• M6: 3,022,775 km (0.064 R)
• M7: 3,587,207 km (0.118 R)
• M8: 4,293,309 km (0.114 R)
• M9: 7,217,200 km (0.082 R)
• M10: 9,753,482 km (0.104 R)
• M11: 10,853,475 km (0.113 R)
• M12: 11,269,208 km (0.063 R)
• M13: 12,034,401 km (0.058 R)
• M14: 14,706,667 km (0.103 R)
• M15: 15,914,072 km (0.113 R)
• M16: 19,120,253 km (0.101 R)
• M17: 20,839,432 km (0.087 R)
• M18: 22,659,440 km (0.1 R)
• M19: 23,723,829 km (0.086 R)
• M20: 24,111,886 km (0.062 R)
• M21: 24,741,693 km (0.068 R)
• M22: 28,841,273 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.5

Radius: 9.2

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 4.12 AU - 4.82 AU

Year: 6302 Days

Day: 14.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 9,517,184 km

• M1: 135,984 km (0.083 R)
• M2: 440,117 km (0.098 R)
• M3: 846,425 km (0.055 R)
• M4: 1,739,225 km (0.062 R)
• M5: 2,095,118 km (0.115 R)
• M6: 2,579,366 km (0.068 R)
• M7: 4,474,323 km (0.078 R)
• M8: 7,556,338 km (0.062 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: 545 - 13,056 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit