🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.48 AU - 0.62 AU

Year: 150 Days

Day: 24.2 Hours

Environment

Temp: 227 °C

Axial Tilt: 10.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.44

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.74 AU - 0.82 AU

Year: 253 Days

Day: 13.5 Hours

Environment

Temp: 130 °C

Axial Tilt: 49.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 75,830,264 km

• M1: 296,353 km (0.088 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.01 AU - 1.27 AU

Year: 447 Days

Day: 29.9 Hours

Environment

Temp: 21 °C

Axial Tilt: 37.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 75,830,264 km

• M1: 112,797 km (0.117 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.63

Radius: 1.85

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.58 AU - 2.14 AU

Year: 931 Days

Day: 30.9 Hours

Environment

Temp: -53 °C

Axial Tilt: 20.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,830,264 km

• M1: 100,530 km (0.11 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 2.42 AU - 2.88 AU

Year: 1584 Days

Day: 43.1 Hours

Environment

Temp: -96 °C

Axial Tilt: 20.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,830,264 km

• M1: 33,061 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.5

Radius: 9.9

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 6.27 AU - 7.77 AU

Year: 6828 Days

Day: 8.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 75,830,264 km

• M1: 126,261 km (0.053 R)
• M2: 492,476 km (0.084 R)
• M3: 858,841 km (0.076 R)
• M4: 1,824,645 km (0.081 R)
• M5: 2,779,678 km (0.103 R)
• M6: 5,398,239 km (0.111 R)
• M7: 5,753,385 km (0.12 R)
• M8: 6,541,466 km (0.042 R)
• M9: 7,942,600 km (0.081 R)
• M10: 8,331,105 km (0.066 R)
• M11: 9,892,608 km (0.058 R)
• M12: 10,467,961 km (0.091 R)
• M13: 11,065,455 km (0.116 R)
• M14: 13,887,021 km (0.115 R)
• M15: 16,070,551 km (0.093 R)
• M16: 17,926,612 km (0.079 R)
• M17: 20,050,902 km (0.085 R)
• M18: 20,574,195 km (0.12 R)
• M19: 21,991,186 km (0.075 R)
• M20: 22,829,383 km (0.085 R)
• M21: 24,273,750 km (0.039 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 639.9

Radius: 6.9

Gravity: 13.44 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 10.45 AU - 17.09 AU

Year: 18757 Days

Day: 18 Hours

Environment

Temp: -193 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 75,830,264 km

• M1: 87,664 km (0.072 R)
• M2: 302,786 km (0.067 R)
• M3: 529,277 km (0.117 R)
• M4: 833,410 km (0.077 R)
• M5: 1,365,978 km (0.078 R)
• M6: 1,804,001 km (0.09 R)
• M7: 2,506,812 km (0.108 R)
• M8: 2,785,961 km (0.034 R)
• M9: 3,034,294 km (0.111 R)
• M10: 4,675,681 km (0.077 R)
• M11: 4,920,274 km (0.12 R)
• M12: 6,924,287 km (0.107 R)
• M13: 7,150,778 km (0.052 R)
• M14: 10,444,923 km (0.088 R)
• M15: 12,452,976 km (0.116 R)
• M16: 14,779,372 km (0.106 R)
• M17: 15,692,817 km (0.096 R)
• M18: 17,050,268 km (0.1 R)
• M19: 19,543,915 km (0.074 R)
• M20: 21,398,779 km (0.082 R)
• M21: 23,368,085 km (0.051 R)
• M22: 24,816,342 km (0.051 R)
• M23: 27,211,553 km (0.053 R)
• M24: 27,890,578 km (0.104 R)
• M25: 30,235,674 km (0.063 R)
• M26: 30,964,216 km (0.057 R)
• M27: 31,456,243 km (0.036 R)
• M28: 34,782,702 km (0.065 R)
• M29: 35,448,263 km (0.085 R)
• M30: 37,080,076 km (0.114 R)
• M31: 38,054,856 km (0.119 R)
• M32: 41,974,619 km (0.085 R)
• M33: 43,954,547 km (0.057 R)
• M34: 44,732,307 km (0.115 R)
• M35: 49,258,390 km (0.082 R)
• M36: 51,459,872 km (0.054 R)
• M37: 52,497,633 km (0.082 R)
• M38: 54,794,110 km (0.1 R)
• M39: 62,278,641 km (0.102 R)
• M40: 65,655,813 km (0.091 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 348

Radius: 6.7

Gravity: 7.75 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 15.76 AU - 20.14 AU

Year: 27917 Days

Day: 15.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 75,830,264 km

• M1: 83,326 km (0.097 R)
• M2: 436,078 km (0.066 R)
• M3: 1,091,616 km (0.106 R)
• M4: 1,590,824 km (0.112 R)
• M5: 1,949,859 km (0.088 R)
• M6: 2,519,079 km (0.12 R)
• M7: 3,797,093 km (0.093 R)
• M8: 5,077,950 km (0.113 R)
• M9: 5,898,046 km (0.103 R)
• M10: 7,408,236 km (0.058 R)
• M11: 7,947,536 km (0.117 R)
• M12: 8,304,178 km (0.111 R)
• M13: 11,169,875 km (0.044 R)
• M14: 11,488,518 km (0.111 R)
• M15: 13,243,750 km (0.11 R)
• M16: 13,672,797 km (0.082 R)
• M17: 17,276,460 km (0.032 R)
• M18: 17,875,150 km (0.114 R)
• M19: 18,933,555 km (0.109 R)
• M20: 21,860,288 km (0.069 R)
• M21: 22,865,137 km (0.097 R)
• M22: 26,176,037 km (0.034 R)
• M23: 31,657,153 km (0.083 R)
• M24: 32,295,338 km (0.11 R)
• M25: 35,615,962 km (0.035 R)
• M26: 35,891,072 km (0.065 R)
• M27: 39,303,699 km (0.119 R)
• M28: 43,865,836 km (0.063 R)
• M29: 46,273,763 km (0.116 R)
• M30: 46,930,498 km (0.101 R)
• M31: 48,768,607 km (0.114 R)
• M32: 54,752,521 km (0.061 R)
• M33: 56,601,402 km (0.049 R)
• M34: 58,110,096 km (0.097 R)
• M35: 60,814,526 km (0.082 R)
• M36: 69,215,494 km (0.115 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: 533 - 11,585 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit