🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.24

Radius: 0.57

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.61 AU - 0.73 AU

Year: 206 Days

Day: 37.5 Hours

Environment

Temp: 109 °C

Axial Tilt: 6.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.79 AU - 1.21 AU

Year: 375 Days

Day: 35.1 Hours

Environment

Temp: 7 °C

Axial Tilt: 2.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.58

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.1 AU - 1.16 AU

Year: 450 Days

Day: 30.6 Hours

Environment

Temp: 4 °C

Axial Tilt: 34.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.65

Radius: 1.22

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.96 AU - 1.52 AU

Year: 517 Days

Day: 15.6 Hours

Environment

Temp: -2 °C

Axial Tilt: 39.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.34

Radius: 1.12

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.14 AU - 3.26 AU

Year: 1663 Days

Day: 17.6 Hours

Environment

Temp: -98 °C

Axial Tilt: 23.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.83

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 4.05 AU - 4.07 AU

Year: 3066 Days

Day: 20.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 15.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 91,377,105 km

• M1: 3,730,971 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.1

Radius: 9.8

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 5.4 AU - 5.82 AU

Year: 4979 Days

Day: 9.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 91,377,105 km

• M1: 470,934 km (0.102 R)
• M2: 557,850 km (0.11 R)
• M3: 717,920 km (0.103 R)
• M4: 871,108 km (0.074 R)
• M5: 993,330 km (0.113 R)
• M6: 1,121,685 km (0.036 R)
• M7: 1,197,681 km (0.117 R)
• M8: 1,792,930 km (0.091 R)
• M9: 1,951,055 km (0.098 R)
• M10: 2,216,891 km (0.12 R)
• M11: 2,313,681 km (0.116 R)
• M12: 2,511,299 km (0.081 R)
• M13: 2,578,469 km (0.086 R)
• M14: 3,228,172 km (0.095 R)
• M15: 3,365,952 km (0.118 R)
• M16: 3,599,923 km (0.114 R)
• M17: 3,878,175 km (0.044 R)
• M18: 4,353,896 km (0.07 R)
• M19: 4,537,154 km (0.08 R)
• M20: 4,764,692 km (0.081 R)
• M21: 4,921,920 km (0.038 R)
• M22: 5,382,232 km (0.113 R)
• M23: 5,678,436 km (0.057 R)
• M24: 6,025,054 km (0.104 R)
• M25: 6,309,739 km (0.037 R)
• M26: 6,587,093 km (0.053 R)
• M27: 7,022,573 km (0.072 R)
• M28: 7,370,388 km (0.039 R)
• M29: 7,971,023 km (0.06 R)
• M30: 8,045,673 km (0.102 R)
• M31: 8,195,719 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 593.2

Radius: 4.8

Gravity: 25.75 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 16.81 AU - 18.91 AU

Year: 28285 Days

Day: 22.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 84.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 91,377,105 km

• M1: 298,897 km (0.113 R)
• M2: 487,539 km (0.117 R)
• M3: 558,150 km (0.054 R)
• M4: 607,068 km (0.083 R)
• M5: 1,111,363 km (0.102 R)
• M6: 2,402,991 km (0.091 R)
• M7: 3,166,688 km (0.109 R)
• M8: 3,528,415 km (0.092 R)
• M9: 3,574,641 km (0.116 R)
• M10: 3,714,216 km (0.095 R)
• M11: 4,439,167 km (0.085 R)
• M12: 5,049,676 km (0.08 R)
• M13: 6,069,186 km (0.111 R)
• M14: 6,573,630 km (0.104 R)
• M15: 6,687,623 km (0.073 R)
• M16: 6,859,810 km (0.104 R)
• M17: 7,033,344 km (0.085 R)
• M18: 7,862,565 km (0.115 R)
• M19: 8,227,434 km (0.06 R)
• M20: 9,740,766 km (0.085 R)
• M21: 9,935,991 km (0.032 R)
• M22: 10,001,216 km (0.112 R)
• M23: 10,863,498 km (0.116 R)
• M24: 12,517,003 km (0.115 R)
• M25: 13,300,597 km (0.118 R)
• M26: 13,807,435 km (0.093 R)
• M27: 14,542,559 km (0.061 R)
• M28: 15,517,039 km (0.058 R)
• M29: 16,203,993 km (0.096 R)
• M30: 17,292,167 km (0.114 R)
• M31: 17,845,081 km (0.056 R)
• M32: 18,564,348 km (0.103 R)
• M33: 18,887,180 km (0.06 R)
• M34: 19,374,719 km (0.103 R)
• M35: 22,643,583 km (0.039 R)
• M36: 23,508,707 km (0.066 R)
• M37: 25,718,716 km (0.106 R)
• M38: 25,988,292 km (0.087 R)
• M39: 26,078,350 km (0.099 R)
• M40: 26,984,913 km (0.037 R)
• M41: 29,108,754 km (0.041 R)
• M42: 30,238,068 km (0.029 R)
• M43: 31,573,528 km (0.096 R)
• M44: 31,669,720 km (0.099 R)
• M45: 31,765,911 km (0.086 R)
• M46: 32,928,137 km (0.091 R)
• M47: 34,301,595 km (0.115 R)
• M48: 34,697,581 km (0.103 R)
• M49: 34,895,947 km (0.06 R)
• M50: 35,094,912 km (0.097 R)
• M51: 35,793,983 km (0.065 R)
• M52: 37,205,738 km (0.08 R)
• M53: 37,918,423 km (0.108 R)
• M54: 41,654,181 km (0.032 R)
• M55: 42,182,261 km (0.116 R)
• M56: 45,614,036 km (0.117 R)
• M57: 45,940,309 km (0.099 R)
• M58: 46,158,273 km (0.105 R)
• M59: 46,376,537 km (0.057 R)
• M60: 46,814,260 km (0.094 R)
• M61: 50,027,772 km (0.117 R)
• M62: 52,968,866 km (0.052 R)
• M63: 53,083,009 km (0.095 R)
• M64: 53,311,744 km (0.089 R)
• M65: 53,426,336 km (0.056 R)
• M66: 53,655,520 km (0.077 R)
• M67: 55,965,461 km (0.049 R)
• M68: 57,836,631 km (0.073 R)
• M69: 58,661,813 km (0.098 R)
• M70: 59,016,510 km (0.108 R)
• M71: 59,253,473 km (0.106 R)
• M72: 62,241,690 km (0.062 R)
• M73: 62,724,442 km (0.088 R)
• M74: 63,693,388 km (0.083 R)
• M75: 64,911,713 km (0.1 R)
• M76: 66,876,831 km (0.092 R)
• M77: 67,123,817 km (0.118 R)
• M78: 67,371,102 km (0.09 R)
• M79: 68,363,385 km (0.084 R)
• M80: 69,860,859 km (0.069 R)
• M81: 70,613,636 km (0.09 R)
• M82: 70,991,071 km (0.055 R)
• M83: 73,524,212 km (0.108 R)
• M84: 80,378,637 km (0.034 R)
• M85: 80,772,678 km (0.045 R)
• M86: 81,694,500 km (0.076 R)
• M87: 82,222,879 km (0.109 R)
• M88: 83,415,922 km (0.058 R)
• M89: 85,416,943 km (0.118 R)
• M90: 85,550,983 km (0.067 R)
• M91: 87,974,169 km (0.117 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 13,776 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit