🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.67

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.77 AU - 0.99 AU

Year: 291 Days

Day: 42.1 Hours

Environment

Temp: 190 °C

Axial Tilt: 4.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 89,997,947 km

• M1: 655,239 km (0.09 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.1 AU - 1.2 AU

Year: 435 Days

Day: 14.4 Hours

Environment

Temp: 36 °C

Axial Tilt: 12.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.65

Radius: 1.22

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.25 AU - 1.51 AU

Year: 572 Days

Day: 18.8 Hours

Environment

Temp: 11 °C

Axial Tilt: 10.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 89,997,947 km

• M1: 650,452 km (0.107 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.28 AU - 1.54 AU

Year: 591 Days

Day: 46.8 Hours

Environment

Temp: 5 °C

Axial Tilt: 34.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 89,997,947 km

• M1: 241,750 km (0.099 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.61

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 1.59 AU - 1.71 AU

Year: 748 Days

Day: 19.1 Hours

Environment

Temp: -42 °C

Axial Tilt: 20.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.44 AU - 1.88 AU

Year: 755 Days

Day: 17 Hours

Environment

Temp: -38 °C

Axial Tilt: 28.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.91 AU - 2.83 AU

Year: 1288 Days

Day: 47.7 Hours

Environment

Temp: -81 °C

Axial Tilt: 31.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 89,997,947 km

• M1: 108,309 km (0.07 R)
• M2: 533,466 km (0.102 R)

Asteroid Belt

Center: 4.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 159.4

Radius: 13.4

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 5.21 AU - 8.03 AU

Year: 6014 Days

Day: 14.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (70)

Outer Limit: 89,997,947 km

• M1: 178,919 km (0.114 R)
• M2: 472,879 km (0.097 R)
• M3: 569,220 km (0.082 R)
• M4: 720,015 km (0.088 R)
• M5: 885,919 km (0.062 R)
• M6: 1,011,431 km (0.045 R)
• M7: 1,109,867 km (0.095 R)
• M8: 1,341,145 km (0.072 R)
• M9: 1,640,341 km (0.094 R)
• M10: 2,115,164 km (0.107 R)
• M11: 2,331,782 km (0.033 R)
• M12: 2,555,880 km (0.101 R)
• M13: 2,724,925 km (0.075 R)
• M14: 3,074,236 km (0.113 R)
• M15: 3,270,957 km (0.095 R)
• M16: 3,454,963 km (0.076 R)
• M17: 3,833,445 km (0.081 R)
• M18: 3,939,062 km (0.116 R)
• M19: 4,426,451 km (0.101 R)
• M20: 4,537,453 km (0.081 R)
• M21: 4,686,901 km (0.099 R)
• M22: 4,971,436 km (0.097 R)
• M23: 5,399,286 km (0.032 R)
• M24: 5,637,745 km (0.111 R)
• M25: 6,042,856 km (0.032 R)
• M26: 6,269,796 km (0.089 R)
• M27: 6,562,709 km (0.043 R)
• M28: 6,753,446 km (0.106 R)
• M29: 6,903,044 km (0.111 R)
• M30: 7,032,147 km (0.114 R)
• M31: 7,380,561 km (0.098 R)
• M32: 7,468,524 km (0.106 R)
• M33: 7,689,929 km (0.074 R)
• M34: 7,981,196 km (0.096 R)
• M35: 8,230,426 km (0.105 R)
• M36: 8,390,346 km (0.12 R)
• M37: 9,064,285 km (0.086 R)
• M38: 9,419,580 km (0.083 R)
• M39: 9,852,217 km (0.041 R)
• M40: 10,414,405 km (0.045 R)
• M41: 10,886,835 km (0.108 R)
• M42: 11,138,160 km (0.083 R)
• M43: 11,239,288 km (0.099 R)
• M44: 11,366,147 km (0.083 R)
• M45: 11,826,759 km (0.046 R)
• M46: 12,033,354 km (0.114 R)
• M47: 12,345,714 km (0.083 R)
• M48: 12,581,630 km (0.109 R)
• M49: 13,058,099 km (0.118 R)
• M50: 13,298,503 km (0.092 R)
• M51: 14,247,701 km (0.081 R)
• M52: 14,412,558 km (0.072 R)
• M53: 14,550,487 km (0.093 R)
• M54: 15,022,618 km (0.075 R)
• M55: 15,190,467 km (0.12 R)
• M56: 15,274,691 km (0.082 R)
• M57: 16,153,578 km (0.072 R)
• M58: 16,268,170 km (0.044 R)
• M59: 16,816,147 km (0.047 R)
• M60: 17,019,600 km (0.106 R)
• M61: 17,194,630 km (0.03 R)
• M62: 17,812,020 km (0.1 R)
• M63: 17,900,881 km (0.096 R)
• M64: 18,078,903 km (0.066 R)
• M65: 18,376,902 km (0.05 R)
• M66: 18,526,500 km (0.059 R)
• M67: 18,646,627 km (0.077 R)
• M68: 19,585,353 km (0.049 R)
• M69: 19,677,057 km (0.083 R)
• M70: 20,384,505 km (0.097 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 741.5

Radius: 6.8

Gravity: 16.04 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 14.12 AU - 19.86 AU

Year: 24728 Days

Day: 15.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (90)

Outer Limit: 89,997,947 km

• M1: 126,410 km (0.117 R)
• M2: 174,431 km (0.06 R)
• M3: 217,814 km (0.073 R)
• M4: 398,230 km (0.081 R)
• M5: 575,353 km (0.112 R)
• M6: 1,643,931 km (0.088 R)
• M7: 1,749,846 km (0.084 R)
• M8: 1,821,653 km (0.11 R)
• M9: 2,312,783 km (0.084 R)
• M10: 2,800,921 km (0.082 R)
• M11: 3,320,175 km (0.117 R)
• M12: 3,545,470 km (0.112 R)
• M13: 3,869,050 km (0.093 R)
• M14: 4,794,462 km (0.06 R)
• M15: 5,360,391 km (0.03 R)
• M16: 5,731,394 km (0.104 R)
• M17: 6,001,567 km (0.098 R)
• M18: 6,165,676 km (0.087 R)
• M19: 6,893,919 km (0.11 R)
• M20: 7,123,402 km (0.108 R)
• M21: 8,985,746 km (0.093 R)
• M22: 10,921,542 km (0.106 R)
• M23: 11,936,115 km (0.099 R)
• M24: 12,004,780 km (0.035 R)
• M25: 14,491,097 km (0.118 R)
• M26: 15,304,311 km (0.099 R)
• M27: 16,056,339 km (0.03 R)
• M28: 18,146,521 km (0.075 R)
• M29: 18,782,162 km (0.091 R)
• M30: 19,183,085 km (0.078 R)
• M31: 19,344,201 km (0.077 R)
• M32: 19,505,917 km (0.087 R)
• M33: 19,993,456 km (0.03 R)
• M34: 20,156,817 km (0.113 R)
• M35: 21,313,059 km (0.054 R)
• M36: 23,344,748 km (0.085 R)
• M37: 23,948,974 km (0.043 R)
• M38: 24,733,166 km (0.044 R)
• M39: 25,969,891 km (0.074 R)
• M40: 26,416,441 km (0.087 R)
• M41: 29,612,599 km (0.086 R)
• M42: 30,079,045 km (0.112 R)
• M43: 31,208,509 km (0.098 R)
• M44: 31,683,183 km (0.06 R)
• M45: 32,255,994 km (0.098 R)
• M46: 32,447,629 km (0.074 R)
• M47: 37,764,187 km (0.106 R)
• M48: 39,390,466 km (0.085 R)
• M49: 39,595,415 km (0.105 R)
• M50: 42,500,905 km (0.05 R)
• M51: 43,026,891 km (0.06 R)
• M52: 45,045,415 km (0.108 R)
• M53: 46,660,773 km (0.073 R)
• M54: 47,094,756 km (0.115 R)
• M55: 47,966,612 km (0.06 R)
• M56: 49,947,737 km (0.109 R)
• M57: 53,421,848 km (0.096 R)
• M58: 53,762,184 km (0.093 R)
• M59: 54,673,235 km (0.108 R)
• M60: 55,934,345 km (0.095 R)
• M61: 56,395,256 km (0.114 R)
• M62: 58,718,810 km (0.099 R)
• M63: 61,310,593 km (0.03 R)
• M64: 62,500,943 km (0.085 R)
• M65: 63,698,923 km (0.074 R)
• M66: 64,662,782 km (0.111 R)
• M67: 65,995,849 km (0.101 R)
• M68: 66,604,862 km (0.043 R)
• M69: 66,726,933 km (0.105 R)
• M70: 67,828,423 km (0.114 R)
• M71: 68,566,090 km (0.089 R)
• M72: 69,059,314 km (0.097 R)
• M73: 69,430,017 km (0.076 R)
• M74: 70,546,167 km (0.116 R)
• M75: 70,919,563 km (0.06 R)
• M76: 71,543,237 km (0.112 R)
• M77: 72,419,581 km (0.067 R)
• M78: 73,677,550 km (0.069 R)
• M79: 75,832,657 km (0.073 R)
• M80: 78,137,062 km (0.098 R)
• M81: 80,854,358 km (0.08 R)
• M82: 81,767,055 km (0.096 R)
• M83: 82,945,437 km (0.084 R)
• M84: 83,470,974 km (0.103 R)
• M85: 83,602,471 km (0.107 R)
• M86: 85,982,274 km (0.102 R)
• M87: 88,116,437 km (0.11 R)
• M88: 88,921,124 km (0.099 R)
• M89: 89,593,566 km (0.038 R)
• M90: 89,997,929 km (0.086 R)

Kuiper Belt

Range: 31.1 - 61.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 260 - 15,189 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit