🌌 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 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.87

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.48 AU - 0.68 AU

Year: 285 Days

Day: 36 Hours

Environment

Temp: -126 °C

Axial Tilt: 11.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.1

Radius: 10.4

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.73 AU - 0.81 AU

Year: 436 Days

Day: 9.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,593,425 km

• M1: 129,402 km (0.087 R)
• M2: 576,101 km (0.071 R)
• M3: 1,079,797 km (0.071 R)
• M4: 1,880,894 km (0.067 R)
• M5: 2,288,847 km (0.056 R)
• M6: 3,194,214 km (0.058 R)
• M7: 4,131,594 km (0.061 R)
• M8: 4,591,757 km (0.088 R)
• M9: 4,993,727 km (0.031 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.6

Radius: 12.7

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 2.11 AU - 2.15 AU

Year: 2007 Days

Day: 14.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,593,425 km

• M1: 158,574 km (0.101 R)
• M2: 580,141 km (0.113 R)
• M3: 1,078,451 km (0.118 R)
• M4: 1,481,019 km (0.036 R)
• M5: 2,066,246 km (0.114 R)
• M6: 2,817,078 km (0.097 R)
• M7: 3,288,909 km (0.102 R)
• M8: 3,707,634 km (0.098 R)
• M9: 4,105,714 km (0.084 R)
• M10: 5,430,702 km (0.095 R)
• M11: 5,995,135 km (0.089 R)
• M12: 8,135,132 km (0.098 R)
• M13: 8,843,927 km (0.092 R)
• M14: 9,560,202 km (0.095 R)
• M15: 10,924,833 km (0.103 R)
• M16: 12,099,027 km (0.097 R)
• M17: 12,737,212 km (0.034 R)
• M18: 15,240,582 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.3

Radius: 9.9

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 5.13 AU - 6.73 AU

Year: 9324 Days

Day: 10.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,593,425 km

• M1: 150,047 km (0.104 R)
• M2: 664,963 km (0.047 R)
• M3: 1,147,266 km (0.113 R)
• M4: 1,911,113 km (0.101 R)
• M5: 3,209,473 km (0.05 R)
• M6: 4,173,332 km (0.05 R)
• M7: 6,131,867 km (0.117 R)
• M8: 12,663,609 km (0.069 R)
• M9: 13,090,113 km (0.049 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 525

Radius: 4.3

Gravity: 28.39 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 6.12 AU - 6.7 AU

Year: 10479 Days

Day: 16.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 32,593,425 km

• M1: 71,807 km (0.106 R)
• M2: 238,609 km (0.106 R)
• M3: 442,959 km (0.071 R)
• M4: 589,266 km (0.072 R)
• M5: 734,675 km (0.109 R)
• M6: 1,237,623 km (0.043 R)
• M7: 1,374,206 km (0.09 R)
• M8: 1,534,575 km (0.098 R)
• M9: 1,861,596 km (0.101 R)
• M10: 2,110,078 km (0.087 R)
• M11: 2,514,142 km (0.112 R)
• M12: 2,881,704 km (0.073 R)
• M13: 3,033,994 km (0.118 R)
• M14: 3,168,782 km (0.051 R)
• M15: 3,825,666 km (0.086 R)
• M16: 4,481,952 km (0.054 R)
• M17: 4,746,292 km (0.097 R)
• M18: 5,052,369 km (0.101 R)
• M19: 5,703,568 km (0.103 R)
• M20: 6,155,803 km (0.099 R)
• M21: 6,409,072 km (0.1 R)
• M22: 7,738,997 km (0.058 R)
• M23: 8,076,789 km (0.046 R)
• M24: 9,149,256 km (0.112 R)
• M25: 9,671,054 km (0.105 R)
• M26: 10,618,906 km (0.103 R)
• M27: 13,770,185 km (0.1 R)
• M28: 14,078,656 km (0.113 R)
• M29: 16,714,570 km (0.085 R)
• M30: 17,278,404 km (0.095 R)
• M31: 17,421,420 km (0.09 R)
• M32: 24,074,935 km (0.102 R)
• M33: 24,432,623 km (0.118 R)
• M34: 24,612,739 km (0.118 R)
• M35: 24,975,664 km (0.109 R)
• M36: 25,898,533 km (0.064 R)
• M37: 26,939,884 km (0.076 R)
• M38: 27,910,325 km (0.086 R)
• M39: 31,384,436 km (0.081 R)
• M40: 31,811,239 km (0.078 R)
• M41: 35,596,065 km (0.111 R)
• M42: 35,943,731 km (0.087 R)
• M43: 38,319,943 km (0.099 R)
• M44: 38,929,854 km (0.101 R)
• M45: 42,077,094 km (0.091 R)
• M46: 43,646,376 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 574.3

Radius: 5.9

Gravity: 16.5 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 5.31 AU - 8.25 AU

Year: 11399 Days

Day: 23.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 32,593,425 km

• M1: 73,303 km (0.119 R)
• M2: 282,740 km (0.052 R)
• M3: 880,383 km (0.096 R)
• M4: 1,225,506 km (0.028 R)
• M5: 1,859,352 km (0.06 R)
• M6: 2,994,650 km (0.109 R)
• M7: 3,467,529 km (0.112 R)
• M8: 6,491,351 km (0.083 R)
• M9: 9,241,558 km (0.061 R)
• M10: 9,681,974 km (0.048 R)
• M11: 11,584,560 km (0.064 R)
• M12: 14,555,723 km (0.063 R)
• M13: 17,403,019 km (0.117 R)
• M14: 19,948,427 km (0.107 R)
• M15: 22,381,337 km (0.083 R)
• M16: 25,572,410 km (0.093 R)
• M17: 27,625,640 km (0.077 R)
• M18: 28,436,012 km (0.119 R)
• M19: 31,397,003 km (0.105 R)
• M20: 33,405,205 km (0.027 R)
• M21: 37,429,387 km (0.103 R)
• M22: 39,557,567 km (0.115 R)
• M23: 40,456,799 km (0.11 R)
• M24: 42,162,963 km (0.088 R)
• M25: 42,697,476 km (0.048 R)
• M26: 47,568,233 km (0.086 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 92

Radius: 4.4

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 7.38 AU - 9.12 AU

Year: 15300 Days

Day: 22.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,593,425 km

• M1: 54,753 km (0.12 R)
• M2: 270,922 km (0.05 R)
• M3: 415,583 km (0.099 R)
• M4: 1,110,914 km (0.106 R)
• M5: 5,409,459 km (0.088 R)
• M6: 6,535,632 km (0.108 R)
• M7: 9,623,631 km (0.092 R)
• M8: 12,869,456 km (0.113 R)
• M9: 13,727,101 km (0.112 R)
• M10: 21,187,397 km (0.099 R)
• M11: 24,013,450 km (0.102 R)
• M12: 24,413,625 km (0.119 R)
• M13: 25,640,925 km (0.075 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 16,290 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit