🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.46 AU - 0.62 AU

Year: 256 Days

Day: 38.8 Hours

Environment

Temp: -116 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,850,131 km

• M1: 112,647 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.1

Radius: 14.7

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.65 AU - 0.85 AU

Year: 419 Days

Day: 10 Hours

Environment

Temp: -149 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,850,131 km

• M1: 182,958 km (0.075 R)
• M2: 662,569 km (0.114 R)
• M3: 1,146,967 km (0.061 R)
• M4: 1,607,429 km (0.115 R)
• M5: 2,978,494 km (0.084 R)
• M6: 3,519,589 km (0.107 R)
• M7: 4,007,428 km (0.059 R)
• M8: 5,121,483 km (0.11 R)
• M9: 5,634,753 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 549.9

Radius: 10.8

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.77 AU - 0.95 AU

Year: 515 Days

Day: 11.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,850,131 km

• M1: 134,339 km (0.105 R)
• M2: 517,459 km (0.091 R)
• M3: 987,346 km (0.106 R)
• M4: 2,141,793 km (0.12 R)
• M5: 3,683,848 km (0.087 R)
• M6: 4,051,709 km (0.03 R)
• M7: 4,605,071 km (0.037 R)
• M8: 5,487,549 km (0.114 R)
• M9: 5,898,644 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.4

Radius: 10.2

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.89 AU - 1.47 AU

Year: 828 Days

Day: 13 Hours

Environment

Temp: -168 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 74,850,131 km

• M1: 126,859 km (0.048 R)
• M2: 472,729 km (0.083 R)
• M3: 905,666 km (0.047 R)
• M4: 1,473,689 km (0.065 R)
• M5: 1,998,478 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429

Radius: 12.6

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 3.46 AU - 3.98 AU

Year: 4633 Days

Day: 8.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,850,131 km

• M1: 156,928 km (0.111 R)
• M2: 721,511 km (0.088 R)
• M3: 1,211,743 km (0.108 R)
• M4: 2,922,843 km (0.086 R)
• M5: 3,469,623 km (0.079 R)
• M6: 3,998,302 km (0.108 R)
• M7: 4,556,901 km (0.115 R)
• M8: 6,027,597 km (0.088 R)
• M9: 6,552,088 km (0.049 R)
• M10: 8,888,507 km (0.097 R)
• M11: 9,686,462 km (0.096 R)
• M12: 11,078,919 km (0.115 R)
• M13: 11,868,197 km (0.101 R)
• M14: 12,600,928 km (0.103 R)
• M15: 13,510,034 km (0.116 R)
• M16: 14,207,459 km (0.055 R)
• M17: 14,876,311 km (0.117 R)
• M18: 17,010,026 km (0.081 R)
• M19: 17,823,539 km (0.042 R)
• M20: 19,716,999 km (0.082 R)
• M21: 22,838,509 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.5

Radius: 14

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 3.77 AU - 5.69 AU

Year: 6642 Days

Day: 6 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,850,131 km

• M1: 176,376 km (0.057 R)
• M2: 1,041,800 km (0.114 R)
• M3: 1,615,956 km (0.091 R)
• M4: 2,587,744 km (0.104 R)
• M5: 3,060,772 km (0.086 R)
• M6: 3,801,880 km (0.03 R)
• M7: 4,615,394 km (0.076 R)
• M8: 5,317,905 km (0.055 R)
• M9: 6,199,485 km (0.094 R)
• M10: 8,088,607 km (0.083 R)
• M11: 9,472,088 km (0.07 R)
• M12: 10,887,583 km (0.083 R)
• M13: 14,716,840 km (0.086 R)
• M14: 15,364,898 km (0.098 R)
• M15: 16,452,026 km (0.115 R)
• M16: 17,868,269 km (0.057 R)
• M17: 18,434,198 km (0.109 R)
• M18: 19,246,514 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 943.6

Radius: 5.3

Gravity: 33.59 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 8.51 AU - 8.93 AU

Year: 16626 Days

Day: 21.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 74,850,131 km

• M1: 70,012 km (0.068 R)
• M2: 245,789 km (0.061 R)
• M3: 420,520 km (0.047 R)
• M4: 637,736 km (0.032 R)
• M5: 809,175 km (0.077 R)
• M6: 999,763 km (0.113 R)
• M7: 1,234,482 km (0.114 R)
• M8: 1,638,246 km (0.095 R)
• M9: 3,190,474 km (0.105 R)
• M10: 3,440,003 km (0.106 R)
• M11: 3,643,007 km (0.097 R)
• M12: 4,780,699 km (0.113 R)
• M13: 4,960,665 km (0.076 R)
• M14: 8,972,431 km (0.112 R)
• M15: 10,044,599 km (0.03 R)
• M16: 10,460,332 km (0.106 R)
• M17: 11,326,055 km (0.071 R)
• M18: 11,776,494 km (0.101 R)
• M19: 12,440,409 km (0.111 R)
• M20: 12,850,607 km (0.103 R)
• M21: 16,381,416 km (0.095 R)
• M22: 19,395,813 km (0.107 R)
• M23: 22,861,696 km (0.101 R)
• M24: 24,208,376 km (0.045 R)
• M25: 25,171,188 km (0.097 R)
• M26: 30,616,700 km (0.081 R)
• M27: 32,764,926 km (0.052 R)
• M28: 33,154,179 km (0.062 R)
• M29: 35,554,926 km (0.053 R)
• M30: 35,828,540 km (0.071 R)
• M31: 38,643,374 km (0.109 R)
• M32: 43,604,039 km (0.066 R)
• M33: 47,301,800 km (0.118 R)
• M34: 51,203,162 km (0.101 R)
• M35: 51,377,594 km (0.109 R)
• M36: 51,902,832 km (0.095 R)
• M37: 58,680,064 km (0.106 R)
• M38: 69,807,752 km (0.085 R)
• M39: 74,626,000 km (0.104 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 167 - 19,719 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit