🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642

Radius: 11.7

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.61 AU - 0.79 AU

Year: 378 Days

Day: 12.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 24,340,780 km

• M1: 146,008 km (0.071 R)
• M2: 710,291 km (0.116 R)
• M3: 1,153,400 km (0.073 R)
• M4: 1,726,060 km (0.09 R)
• M5: 3,279,335 km (0.047 R)
• M6: 4,043,930 km (0.078 R)
• M7: 4,496,314 km (0.088 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.9

Radius: 9.3

Gravity: 3.83 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.63 AU - 0.87 AU

Year: 419 Days

Day: 11.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 24,340,780 km

• M1: 115,938 km (0.073 R)
• M2: 418,276 km (0.065 R)
• M3: 930,648 km (0.117 R)
• M4: 1,275,471 km (0.118 R)
• M5: 1,746,406 km (0.052 R)
• M6: 2,191,010 km (0.05 R)
• M7: 2,890,530 km (0.106 R)
• M8: 3,224,133 km (0.095 R)
• M9: 3,743,537 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.5

Radius: 12.6

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.69 AU - 0.99 AU

Year: 497 Days

Day: 5.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 24,340,780 km

• M1: 156,629 km (0.104 R)
• M2: 592,108 km (0.096 R)
• M3: 1,175,091 km (0.067 R)
• M4: 1,629,719 km (0.112 R)
• M5: 2,076,269 km (0.102 R)
• M6: 2,512,646 km (0.092 R)
• M7: 3,045,364 km (0.108 R)
• M8: 3,937,117 km (0.032 R)
• M9: 4,399,673 km (0.09 R)
• M10: 5,178,480 km (0.117 R)
• M11: 7,072,838 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.5

Radius: 13.8

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.75 AU - 0.95 AU

Year: 506 Days

Day: 11.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 24,340,780 km

• M1: 171,589 km (0.091 R)
• M2: 1,033,272 km (0.113 R)
• M3: 1,892,563 km (0.106 R)
• M4: 3,108,345 km (0.08 R)
• M5: 3,747,875 km (0.101 R)
• M6: 5,242,957 km (0.044 R)
• M7: 5,720,772 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998

Radius: 13.1

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.98 AU - 1.52 AU

Year: 902 Days

Day: 6 Hours

Environment

Temp: -164 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 24,340,780 km

• M1: 162,912 km (0.08 R)
• M2: 657,034 km (0.071 R)
• M3: 1,204,263 km (0.104 R)
• M4: 1,633,908 km (0.11 R)
• M5: 2,074,474 km (0.078 R)
• M6: 2,830,093 km (0.073 R)
• M7: 3,287,264 km (0.093 R)
• M8: 3,888,497 km (0.079 R)
• M9: 4,965,303 km (0.098 R)
• M10: 5,759,817 km (0.118 R)
• M11: 6,187,966 km (0.098 R)
• M12: 6,660,396 km (0.041 R)
• M13: 7,352,735 km (0.089 R)
• M14: 7,935,419 km (0.115 R)
• M15: 9,164,814 km (0.107 R)
• M16: 10,298,766 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.7

Radius: 10.2

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.24 AU - 1.28 AU

Year: 913 Days

Day: 11.4 Hours

Environment

Temp: -170 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 24,340,780 km

• M1: 128,205 km (0.102 R)
• M2: 622,926 km (0.059 R)
• M3: 1,079,648 km (0.117 R)
• M4: 1,993,990 km (0.097 R)
• M5: 3,080,519 km (0.067 R)
• M6: 3,581,822 km (0.091 R)
• M7: 4,013,112 km (0.109 R)
• M8: 4,420,767 km (0.11 R)
• M9: 4,778,754 km (0.11 R)
• M10: 6,187,817 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.1

Radius: 11.1

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 4.87 AU - 5.15 AU

Year: 7241 Days

Day: 13.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 24,340,780 km

• M1: 138,228 km (0.079 R)
• M2: 652,396 km (0.034 R)
• M3: 1,175,690 km (0.042 R)
• M4: 1,663,828 km (0.099 R)
• M5: 2,075,820 km (0.106 R)
• M6: 2,540,172 km (0.066 R)
• M7: 4,012,963 km (0.106 R)
• M8: 4,596,694 km (0.049 R)
• M9: 9,059,198 km (0.072 R)
• M10: 9,630,961 km (0.095 R)
• M11: 10,389,423 km (0.032 R)
• M12: 12,161,858 km (0.105 R)
• M13: 21,887,365 km (0.069 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 306 - 18,585 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit