🌌 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 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.42 AU - 0.62 AU

Year: 242 Days

Day: 17.8 Hours

Environment

Temp: -117 °C

Axial Tilt: 29.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71

Radius: 10

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.9 AU - 0.96 AU

Year: 579 Days

Day: 10.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 32,879,040 km

• M1: 124,316 km (0.087 R)
• M2: 688,300 km (0.117 R)
• M3: 1,011,581 km (0.096 R)
• M4: 1,340,846 km (0.049 R)
• M5: 1,920,537 km (0.101 R)
• M6: 3,340,969 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.7

Radius: 11.9

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.93 AU - 1.43 AU

Year: 828 Days

Day: 8.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,879,040 km

• M1: 148,551 km (0.026 R)
• M2: 599,588 km (0.083 R)
• M3: 994,377 km (0.094 R)
• M4: 1,423,573 km (0.086 R)
• M5: 1,933,104 km (0.092 R)
• M6: 2,445,327 km (0.117 R)
• M7: 3,059,725 km (0.113 R)
• M8: 4,142,066 km (0.042 R)
• M9: 5,122,979 km (0.103 R)
• M10: 5,537,964 km (0.082 R)
• M11: 6,769,752 km (0.09 R)
• M12: 7,541,528 km (0.071 R)

Asteroid Belt

Center: 1.58 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.6

Radius: 14.9

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.71 AU - 2.23 AU

Year: 1785 Days

Day: 7.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 127.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,879,040 km

• M1: 185,651 km (0.098 R)
• M2: 796,459 km (0.081 R)
• M3: 1,266,645 km (0.044 R)
• M4: 2,088,087 km (0.049 R)
• M5: 2,767,112 km (0.072 R)
• M6: 3,230,566 km (0.063 R)
• M7: 4,634,542 km (0.118 R)
• M8: 5,682,625 km (0.092 R)
• M9: 6,777,532 km (0.092 R)
• M10: 7,403,748 km (0.025 R)
• M11: 7,891,138 km (0.085 R)
• M12: 9,091,212 km (0.118 R)
• M13: 10,623,693 km (0.056 R)
• M14: 11,969,026 km (0.117 R)
• M15: 12,723,449 km (0.081 R)
• M16: 13,807,135 km (0.08 R)
• M17: 14,592,823 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 198.5

Radius: 13.6

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.05 AU - 2.21 AU

Year: 2007 Days

Day: 8.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 32,879,040 km

• M1: 169,494 km (0.056 R)
• M2: 593,604 km (0.113 R)
• M3: 1,467,406 km (0.1 R)
• M4: 3,177,309 km (0.07 R)
• M5: 4,214,770 km (0.106 R)
• M6: 5,985,411 km (0.117 R)
• M7: 6,468,612 km (0.101 R)
• M8: 8,613,845 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720.9

Radius: 9.3

Gravity: 8.34 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 3.68 AU - 4.7 AU

Year: 5538 Days

Day: 13.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,879,040 km

• M1: 115,639 km (0.053 R)
• M2: 459,714 km (0.073 R)
• M3: 1,556,865 km (0.109 R)
• M4: 2,508,457 km (0.104 R)
• M5: 3,970,178 km (0.115 R)
• M6: 6,119,600 km (0.088 R)
• M7: 8,504,639 km (0.063 R)
• M8: 9,925,669 km (0.03 R)
• M9: 10,738,883 km (0.098 R)
• M10: 13,554,315 km (0.06 R)
• M11: 15,248,661 km (0.069 R)
• M12: 15,904,049 km (0.097 R)
• M13: 17,786,738 km (0.117 R)
• M14: 19,396,262 km (0.082 R)
• M15: 22,748,899 km (0.111 R)
• M16: 27,328,389 km (0.103 R)
• M17: 30,296,262 km (0.095 R)
• M18: 32,879,069 km (0.085 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 203 - 16,840 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit