🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.51 AU - 0.75 AU

Year: 328 Days

Day: 32.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 20.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.3

Radius: 8.7

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.88 AU - 1.14 AU

Year: 666 Days

Day: 6.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,953,287 km

• M1: 108,159 km (0.076 R)
• M2: 497,862 km (0.056 R)
• M3: 770,130 km (0.107 R)
• M4: 1,077,853 km (0.119 R)
• M5: 1,379,143 km (0.076 R)
• M6: 1,834,219 km (0.045 R)
• M7: 2,184,877 km (0.091 R)
• M8: 2,643,394 km (0.057 R)
• M9: 2,976,100 km (0.093 R)
• M10: 3,274,548 km (0.093 R)
• M11: 4,002,790 km (0.118 R)
• M12: 4,307,820 km (0.085 R)
• M13: 4,834,704 km (0.12 R)
• M14: 5,147,513 km (0.082 R)
• M15: 5,759,368 km (0.083 R)
• M16: 6,340,855 km (0.096 R)
• M17: 6,716,346 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484.5

Radius: 13.7

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.14 AU - 1.56 AU

Year: 1029 Days

Day: 7.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,953,287 km

• M1: 170,691 km (0.105 R)
• M2: 652,097 km (0.06 R)
• M3: 1,175,989 km (0.05 R)
• M4: 1,735,934 km (0.102 R)
• M5: 2,606,743 km (0.101 R)
• M6: 3,479,796 km (0.119 R)
• M7: 4,456,371 km (0.08 R)
• M8: 4,937,927 km (0.085 R)
• M9: 7,672,576 km (0.107 R)
• M10: 8,367,607 km (0.072 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.4

Radius: 10.3

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.74 AU - 1.94 AU

Year: 1637 Days

Day: 14.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,953,287 km

• M1: 128,056 km (0.09 R)
• M2: 532,269 km (0.117 R)
• M3: 859,141 km (0.112 R)
• M4: 1,562,400 km (0.077 R)
• M5: 2,056,821 km (0.107 R)
• M6: 2,450,712 km (0.12 R)
• M7: 2,992,855 km (0.11 R)
• M8: 3,454,514 km (0.103 R)
• M9: 3,946,242 km (0.117 R)
• M10: 5,510,438 km (0.051 R)
• M11: 5,862,741 km (0.051 R)
• M12: 6,960,639 km (0.037 R)
• M13: 7,720,148 km (0.036 R)
• M14: 8,916,931 km (0.059 R)
• M15: 9,497,221 km (0.107 R)
• M16: 11,179,898 km (0.057 R)
• M17: 11,782,627 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.3

Radius: 12.3

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.73 AU - 2.83 AU

Year: 2258 Days

Day: 13.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,953,287 km

• M1: 153,039 km (0.091 R)
• M2: 569,818 km (0.044 R)
• M3: 1,163,722 km (0.11 R)
• M4: 1,660,387 km (0.034 R)
• M5: 2,496,190 km (0.083 R)
• M6: 4,082,227 km (0.066 R)
• M7: 5,210,195 km (0.119 R)
• M8: 7,290,353 km (0.049 R)
• M9: 8,266,030 km (0.12 R)
• M10: 9,416,438 km (0.074 R)
• M11: 9,936,739 km (0.076 R)
• M12: 10,540,666 km (0.102 R)

Asteroid Belt

Center: 2.93 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.1

Radius: 9.1

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.47 AU - 3.69 AU

Year: 4444 Days

Day: 9.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 50,953,287 km

• M1: 113,246 km (0.114 R)
• M2: 578,046 km (0.071 R)
• M3: 1,200,074 km (0.114 R)
• M4: 1,543,700 km (0.075 R)
• M5: 2,056,372 km (0.057 R)
• M6: 2,600,460 km (0.104 R)
• M7: 3,095,479 km (0.108 R)
• M8: 3,555,044 km (0.089 R)
• M9: 4,703,656 km (0.077 R)
• M10: 7,079,121 km (0.099 R)
• M11: 7,391,930 km (0.093 R)
• M12: 8,079,033 km (0.077 R)
• M13: 10,476,937 km (0.102 R)
• M14: 11,903,652 km (0.11 R)
• M15: 13,742,808 km (0.064 R)
• M16: 14,831,282 km (0.087 R)
• M17: 16,083,267 km (0.101 R)
• M18: 17,517,611 km (0.097 R)
• M19: 19,887,840 km (0.092 R)
• M20: 20,765,680 km (0.074 R)
• M21: 22,397,195 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 732.8

Radius: 4.6

Gravity: 34.63 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 4.82 AU - 7.96 AU

Year: 10596 Days

Day: 17.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 50,953,287 km

• M1: 57,446 km (0.106 R)
• M2: 215,571 km (0.114 R)
• M3: 400,773 km (0.074 R)
• M4: 717,771 km (0.074 R)
• M5: 931,247 km (0.115 R)
• M6: 1,247,796 km (0.068 R)
• M7: 3,053,143 km (0.081 R)
• M8: 3,539,486 km (0.069 R)
• M9: 4,217,762 km (0.1 R)
• M10: 4,572,459 km (0.057 R)
• M11: 5,546,341 km (0.118 R)
• M12: 6,267,702 km (0.115 R)
• M13: 7,254,898 km (0.052 R)
• M14: 7,506,522 km (0.065 R)
• M15: 7,850,896 km (0.11 R)
• M16: 9,091,511 km (0.102 R)
• M17: 9,834,414 km (0.076 R)
• M18: 10,995,892 km (0.11 R)
• M19: 11,723,686 km (0.073 R)
• M20: 14,557,070 km (0.114 R)
• M21: 14,957,244 km (0.096 R)
• M22: 15,433,564 km (0.071 R)
• M23: 18,196,636 km (0.116 R)
• M24: 18,350,572 km (0.066 R)
• M25: 18,896,156 km (0.059 R)
• M26: 19,372,475 km (0.057 R)
• M27: 21,017,753 km (0.066 R)
• M28: 23,383,643 km (0.085 R)
• M29: 25,246,436 km (0.077 R)
• M30: 25,823,884 km (0.092 R)
• M31: 31,534,932 km (0.096 R)
• M32: 35,695,997 km (0.105 R)
• M33: 42,195,875 km (0.077 R)
• M34: 44,108,932 km (0.05 R)
• M35: 44,386,885 km (0.072 R)
• M36: 47,085,780 km (0.1 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 357 - 19,967 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit