🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.49 AU - 0.55 AU

Year: 140 Days

Day: 12.1 Hours

Environment

Temp: 220 °C

Axial Tilt: 35.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.81 AU - 1.25 AU

Year: 390 Days

Day: 15.3 Hours

Environment

Temp: 10 °C

Axial Tilt: 24.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 75,381,757 km

• M1: 232,475 km (0.099 R)
• M2: 645,664 km (0.066 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.24 AU - 1.76 AU

Year: 685 Days

Day: 37.6 Hours

Environment

Temp: -36 °C

Axial Tilt: 20.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.18 AU - 1.92 AU

Year: 719 Days

Day: 39 Hours

Environment

Temp: -50 °C

Axial Tilt: 39.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.37 AU - 1.79 AU

Year: 740 Days

Day: 24.4 Hours

Environment

Temp: -50 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,381,757 km

• M1: 873,352 km (0.11 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.82

Radius: 1.51

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.8 AU - 2.74 AU

Year: 1275 Days

Day: 31 Hours

Environment

Temp: -84 °C

Axial Tilt: 13.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,381,757 km

• M1: 1,080,845 km (0.105 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 2.6 AU - 2.86 AU

Year: 1682 Days

Day: 46.6 Hours

Environment

Temp: -104 °C

Axial Tilt: 25.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 75,381,757 km

• M1: 149,747 km (0.093 R)
• M2: 1,236,875 km (0.116 R)

Planet 8 - Terrestrial

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.17 AU - 3.55 AU

Year: 1803 Days

Day: 21.7 Hours

Environment

Temp: -102 °C

Axial Tilt: 15.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 75,381,757 km

• M1: 349,012 km (0.085 R)
• M2: 1,208,900 km (0.059 R)

Planet 9 - Terrestrial

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.84 AU - 3.44 AU

Year: 2074 Days

Day: 37.1 Hours

Environment

Temp: -113 °C

Axial Tilt: 47.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,381,757 km

• M1: 45,927 km (0.114 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 328.2

Radius: 6.3

Gravity: 8.27 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 13.63 AU - 22.39 AU

Year: 28492 Days

Day: 24.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (97)

Outer Limit: 75,381,757 km

• M1: 189,989 km (0.12 R)
• M2: 358,287 km (0.113 R)
• M3: 1,533,229 km (0.078 R)
• M4: 1,911,711 km (0.071 R)
• M5: 2,077,765 km (0.067 R)
• M6: 2,459,688 km (0.112 R)
• M7: 2,640,402 km (0.085 R)
• M8: 2,714,005 km (0.08 R)
• M9: 3,014,995 km (0.052 R)
• M10: 3,567,311 km (0.025 R)
• M11: 4,065,322 km (0.073 R)
• M12: 4,150,443 km (0.049 R)
• M13: 4,852,656 km (0.064 R)
• M14: 5,591,071 km (0.114 R)
• M15: 5,638,493 km (0.114 R)
• M16: 5,829,081 km (0.105 R)
• M17: 6,070,382 km (0.111 R)
• M18: 6,216,689 km (0.083 R)
• M19: 6,512,893 km (0.068 R)
• M20: 7,533,150 km (0.101 R)
• M21: 8,656,930 km (0.118 R)
• M22: 10,004,058 km (0.098 R)
• M23: 10,061,654 km (0.102 R)
• M24: 10,350,976 km (0.106 R)
• M25: 10,584,498 km (0.113 R)
• M26: 11,415,215 km (0.117 R)
• M27: 12,205,241 km (0.076 R)
• M28: 14,288,841 km (0.1 R)
• M29: 14,744,815 km (0.058 R)
• M30: 17,232,777 km (0.063 R)
• M31: 17,509,533 km (0.103 R)
• M32: 17,648,360 km (0.095 R)
• M33: 17,718,073 km (0.111 R)
• M34: 18,772,738 km (0.095 R)
• M35: 19,057,422 km (0.093 R)
• M36: 19,847,598 km (0.119 R)
• M37: 20,064,964 km (0.118 R)
• M38: 22,056,560 km (0.094 R)
• M39: 22,281,855 km (0.091 R)
• M40: 23,113,918 km (0.117 R)
• M41: 24,652,682 km (0.095 R)
• M42: 25,199,013 km (0.105 R)
• M43: 26,144,921 km (0.116 R)
• M44: 26,383,230 km (0.094 R)
• M45: 26,942,128 km (0.051 R)
• M46: 27,424,132 km (0.116 R)
• M47: 27,909,128 km (0.116 R)
• M48: 28,071,442 km (0.073 R)
• M49: 28,560,178 km (0.098 R)
• M50: 28,805,519 km (0.085 R)
• M51: 29,546,028 km (0.083 R)
• M52: 30,542,948 km (0.107 R)
• M53: 32,143,945 km (0.099 R)
• M54: 33,169,139 km (0.057 R)
• M55: 33,513,214 km (0.115 R)
• M56: 33,944,954 km (0.107 R)
• M57: 34,378,638 km (0.114 R)
• M58: 34,465,554 km (0.116 R)
• M59: 34,901,333 km (0.037 R)
• M60: 36,131,327 km (0.042 R)
• M61: 36,840,570 km (0.11 R)
• M62: 38,453,085 km (0.088 R)
• M63: 40,180,043 km (0.11 R)
• M64: 41,376,078 km (0.062 R)
• M65: 43,426,766 km (0.077 R)
• M66: 43,614,810 km (0.092 R)
• M67: 44,369,831 km (0.109 R)
• M68: 45,414,922 km (0.118 R)
• M69: 46,756,814 km (0.117 R)
• M70: 47,045,987 km (0.114 R)
• M71: 47,432,548 km (0.11 R)
• M72: 48,208,811 km (0.11 R)
• M73: 49,185,087 km (0.115 R)
• M74: 50,069,360 km (0.11 R)
• M75: 50,167,945 km (0.109 R)
• M76: 51,953,097 km (0.041 R)
• M77: 52,352,672 km (0.083 R)
• M78: 52,753,296 km (0.081 R)
• M79: 52,853,526 km (0.079 R)
• M80: 53,658,213 km (0.107 R)
• M81: 55,585,632 km (0.099 R)
• M82: 55,687,658 km (0.12 R)
• M83: 56,403,932 km (0.062 R)
• M84: 56,609,031 km (0.106 R)
• M85: 59,194,830 km (0.066 R)
• M86: 63,411,545 km (0.1 R)
• M87: 63,731,685 km (0.118 R)
• M88: 65,125,039 km (0.073 R)
• M89: 65,987,621 km (0.071 R)
• M90: 66,745,334 km (0.11 R)
• M91: 66,853,792 km (0.071 R)
• M92: 66,962,400 km (0.086 R)
• M93: 67,179,617 km (0.092 R)
• M94: 70,356,327 km (0.118 R)
• M95: 71,130,496 km (0.069 R)
• M96: 73,134,061 km (0.078 R)
• M97: 73,805,905 km (0.064 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 364 - 17,499 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit