🌌 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: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.61 AU - 0.67 AU

Year: 331 Days

Day: 23.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 1.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 69,833,080 km

• M1: 117,883 km (0.062 R)
• M2: 493,224 km (0.073 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.8

Radius: 11.9

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.58 AU - 0.8 AU

Year: 370 Days

Day: 8.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 114.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,833,080 km

• M1: 147,952 km (0.114 R)
• M2: 524,640 km (0.053 R)
• M3: 943,065 km (0.078 R)
• M4: 1,559,558 km (0.069 R)
• M5: 2,021,366 km (0.1 R)
• M6: 2,394,613 km (0.099 R)
• M7: 2,771,899 km (0.096 R)
• M8: 3,254,950 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126

Radius: 10

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.67 AU - 0.87 AU

Year: 436 Days

Day: 6.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,833,080 km

• M1: 124,465 km (0.119 R)
• M2: 617,091 km (0.054 R)
• M3: 953,537 km (0.077 R)
• M4: 1,328,728 km (0.082 R)
• M5: 1,978,133 km (0.09 R)
• M6: 2,356,914 km (0.059 R)
• M7: 2,792,693 km (0.05 R)
• M8: 3,215,157 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.2

Radius: 9.7

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.66 AU - 2.64 AU

Year: 2036 Days

Day: 9.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,833,080 km

• M1: 120,576 km (0.078 R)
• M2: 438,920 km (0.047 R)
• M3: 887,115 km (0.075 R)
• M4: 1,484,160 km (0.069 R)
• M5: 2,186,074 km (0.051 R)
• M6: 2,546,904 km (0.09 R)
• M7: 2,889,782 km (0.113 R)
• M8: 3,421,902 km (0.078 R)
• M9: 3,929,038 km (0.026 R)
• M10: 4,466,095 km (0.091 R)
• M11: 4,782,943 km (0.065 R)
• M12: 5,755,928 km (0.045 R)
• M13: 6,474,596 km (0.041 R)
• M14: 7,091,537 km (0.105 R)
• M15: 7,917,318 km (0.027 R)
• M16: 8,960,314 km (0.06 R)
• M17: 9,628,568 km (0.107 R)
• M18: 11,136,215 km (0.104 R)
• M19: 11,758,841 km (0.093 R)
• M20: 12,638,028 km (0.09 R)
• M21: 13,808,332 km (0.113 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 996.1

Radius: 5.3

Gravity: 35.46 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 7.59 AU - 8.39 AU

Year: 14583 Days

Day: 22.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 69,833,080 km

• M1: 65,973 km (0.097 R)
• M2: 245,341 km (0.049 R)
• M3: 552,016 km (0.103 R)
• M4: 1,292,077 km (0.087 R)
• M5: 1,749,996 km (0.087 R)
• M6: 2,064,899 km (0.045 R)
• M7: 2,527,755 km (0.087 R)
• M8: 3,686,540 km (0.099 R)
• M9: 3,894,182 km (0.058 R)
• M10: 4,268,476 km (0.108 R)
• M11: 5,197,928 km (0.082 R)
• M12: 6,381,097 km (0.056 R)
• M13: 8,374,938 km (0.114 R)
• M14: 12,122,215 km (0.073 R)
• M15: 13,890,611 km (0.091 R)
• M16: 14,321,902 km (0.082 R)
• M17: 15,746,522 km (0.097 R)
• M18: 16,693,327 km (0.066 R)
• M19: 17,594,206 km (0.073 R)
• M20: 18,440,780 km (0.045 R)
• M21: 19,314,282 km (0.092 R)
• M22: 20,032,651 km (0.117 R)
• M23: 21,237,811 km (0.112 R)
• M24: 22,197,033 km (0.072 R)
• M25: 25,674,735 km (0.106 R)
• M26: 26,106,324 km (0.111 R)
• M27: 29,853,601 km (0.113 R)
• M28: 30,571,222 km (0.109 R)
• M29: 33,944,056 km (0.062 R)
• M30: 34,594,657 km (0.096 R)
• M31: 34,988,997 km (0.094 R)
• M32: 36,325,205 km (0.094 R)
• M33: 39,099,049 km (0.077 R)
• M34: 39,383,883 km (0.119 R)
• M35: 40,537,433 km (0.104 R)
• M36: 43,063,093 km (0.095 R)
• M37: 46,964,905 km (0.042 R)
• M38: 58,943,057 km (0.11 R)
• M39: 60,071,623 km (0.087 R)
• M40: 64,135,150 km (0.101 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 176 - 18,357 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit