🌌 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: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.9

Radius: 8.4

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.54 AU - 0.62 AU

Year: 300 Days

Day: 10.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 22,359,389 km

• M1: 104,419 km (0.102 R)
• M2: 555,158 km (0.114 R)
• M3: 955,781 km (0.077 R)
• M4: 1,305,541 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.1

Radius: 12.4

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.5 AU - 0.72 AU

Year: 323 Days

Day: 9.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 119.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 22,359,389 km

• M1: 154,385 km (0.118 R)
• M2: 802,892 km (0.107 R)
• M3: 1,544,000 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.8

Radius: 8.7

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.74 AU - 1.1 AU

Year: 599 Days

Day: 9.1 Hours

Environment

Temp: -178 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 22,359,389 km

• M1: 109,506 km (0.095 R)
• M2: 415,732 km (0.038 R)
• M3: 1,205,908 km (0.054 R)
• M4: 1,492,388 km (0.076 R)
• M5: 2,110,527 km (0.07 R)
• M6: 2,725,823 km (0.073 R)
• M7: 3,884,758 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.1

Radius: 14.7

Gravity: 3.22 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.87 AU - 1.35 AU

Year: 793 Days

Day: 9.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 22,359,389 km

• M1: 187,147 km (0.087 R)
• M2: 792,121 km (0.072 R)
• M3: 1,472,791 km (0.106 R)
• M4: 1,972,448 km (0.112 R)
• M5: 2,995,847 km (0.099 R)
• M6: 3,771,362 km (0.094 R)
• M7: 4,317,843 km (0.115 R)
• M8: 5,421,427 km (0.111 R)
• M9: 6,161,338 km (0.095 R)
• M10: 6,641,397 km (0.116 R)
• M11: 7,169,029 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.5

Radius: 8.9

Gravity: 7.68 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.4 AU - 1.8 AU

Year: 1373 Days

Day: 7.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 22,359,389 km

• M1: 117,584 km (0.051 R)
• M2: 416,331 km (0.1 R)
• M3: 782,696 km (0.1 R)
• M4: 1,372,261 km (0.068 R)
• M5: 1,703,621 km (0.076 R)
• M6: 2,099,307 km (0.101 R)
• M7: 2,481,380 km (0.117 R)
• M8: 2,978,643 km (0.031 R)
• M9: 3,295,940 km (0.109 R)
• M10: 3,931,282 km (0.079 R)
• M11: 4,496,314 km (0.115 R)
• M12: 5,360,690 km (0.115 R)
• M13: 5,965,963 km (0.09 R)
• M14: 6,449,164 km (0.11 R)
• M15: 10,627,283 km (0.102 R)
• M16: 12,116,081 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.4

Radius: 14.1

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 3.32 AU - 3.9 AU

Year: 4652 Days

Day: 14.8 Hours

Environment

Temp: -208 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 22,359,389 km

• M1: 175,478 km (0.097 R)
• M2: 839,394 km (0.1 R)
• M3: 1,783,805 km (0.103 R)
• M4: 2,818,723 km (0.112 R)
• M5: 3,609,049 km (0.072 R)
• M6: 4,467,890 km (0.093 R)
• M7: 5,780,761 km (0.047 R)
• M8: 6,823,308 km (0.036 R)
• M9: 7,549,756 km (0.089 R)
• M10: 8,213,073 km (0.063 R)
• M11: 14,053,673 km (0.046 R)
• M12: 15,289,202 km (0.078 R)
• M13: 15,992,910 km (0.104 R)
• M14: 17,847,176 km (0.074 R)
• M15: 19,566,803 km (0.071 R)
• M16: 22,127,171 km (0.056 R)
• M17: 26,208,949 km (0.037 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388

Radius: 14.7

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 3.54 AU - 3.9 AU

Year: 4866 Days

Day: 10.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 22,359,389 km

• M1: 201,808 km (0.089 R)
• M2: 1,123,181 km (0.115 R)
• M3: 1,824,795 km (0.08 R)
• M4: 2,927,032 km (0.056 R)
• M5: 3,933,078 km (0.084 R)
• M6: 4,693,035 km (0.083 R)
• M7: 6,477,737 km (0.104 R)
• M8: 7,442,195 km (0.06 R)
• M9: 8,536,204 km (0.087 R)
• M10: 10,051,631 km (0.108 R)
• M11: 12,512,366 km (0.086 R)
• M12: 13,269,780 km (0.073 R)
• M13: 14,259,669 km (0.059 R)
• M14: 15,565,509 km (0.104 R)
• M15: 16,220,000 km (0.068 R)
• M16: 17,642,526 km (0.103 R)
• M17: 19,023,613 km (0.09 R)
• M18: 19,708,921 km (0.107 R)
• M19: 22,272,879 km (0.108 R)
• M20: 23,315,726 km (0.114 R)
• M21: 24,536,744 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.1

Radius: 13.9

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 3.62 AU - 4.98 AU

Year: 6048 Days

Day: 10.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 22,359,389 km

• M1: 172,935 km (0.087 R)
• M2: 730,935 km (0.057 R)
• M3: 1,260,661 km (0.102 R)
• M4: 2,318,318 km (0.085 R)
• M5: 3,274,548 km (0.102 R)
• M6: 4,776,062 km (0.117 R)
• M7: 5,208,848 km (0.101 R)
• M8: 6,697,497 km (0.095 R)
• M9: 7,717,754 km (0.052 R)
• M10: 10,701,484 km (0.091 R)
• M11: 15,708,524 km (0.107 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 464 - 11,300 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit