🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.05

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.48 AU - 0.72 AU

Year: 177 Days

Day: 12.4 Hours

Environment

Temp: 174 °C

Axial Tilt: 6.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 18,309,718 km

• M1: 558,449 km (0.078 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.8 AU - 1 AU

Year: 325 Days

Day: 15.3 Hours

Environment

Temp: 36 °C

Axial Tilt: 27.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.87 AU - 1.29 AU

Year: 427 Days

Day: 40.2 Hours

Environment

Temp: -2 °C

Axial Tilt: 39.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 18,309,718 km

• M1: 552,764 km (0.091 R)
• M2: 752,328 km (0.113 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.94 AU - 1.5 AU

Year: 513 Days

Day: 14.3 Hours

Environment

Temp: -29 °C

Axial Tilt: 28.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.65

Radius: 1.22

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.3 AU - 1.74 AU

Year: 714 Days

Day: 25.7 Hours

Environment

Temp: -44 °C

Axial Tilt: 22.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 18,309,718 km

• M1: 431,141 km (0.118 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.06 AU - 2.08 AU

Year: 1134 Days

Day: 24.1 Hours

Environment

Temp: -82 °C

Axial Tilt: 114.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 8.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12

Radius: 8.8

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 6.88 AU - 10.64 AU

Year: 9873 Days

Day: 5.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 18,309,718 km

• M1: 118,182 km (0.081 R)
• M2: 222,302 km (0.047 R)
• M3: 682,914 km (0.071 R)
• M4: 1,028,186 km (0.088 R)
• M5: 2,664,338 km (0.115 R)
• M6: 3,169,680 km (0.095 R)
• M7: 4,013,711 km (0.116 R)
• M8: 4,190,536 km (0.114 R)
• M9: 4,434,829 km (0.119 R)
• M10: 4,525,934 km (0.093 R)
• M11: 4,723,403 km (0.056 R)
• M12: 4,896,787 km (0.062 R)
• M13: 5,696,089 km (0.086 R)
• M14: 5,781,060 km (0.075 R)
• M15: 5,981,072 km (0.086 R)
• M16: 6,893,919 km (0.058 R)
• M17: 7,151,825 km (0.115 R)
• M18: 7,568,007 km (0.081 R)
• M19: 8,151,139 km (0.089 R)
• M20: 8,912,592 km (0.066 R)
• M21: 9,226,897 km (0.104 R)
• M22: 10,346,638 km (0.036 R)
• M23: 10,624,590 km (0.111 R)
• M24: 10,887,434 km (0.052 R)
• M25: 11,562,719 km (0.082 R)
• M26: 11,978,152 km (0.114 R)
• M27: 12,050,856 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.7

Radius: 8.5

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 9.25 AU - 11.17 AU

Year: 12423 Days

Day: 13.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (69)

Outer Limit: 18,309,718 km

• M1: 292,015 km (0.066 R)
• M2: 607,367 km (0.064 R)
• M3: 1,073,664 km (0.083 R)
• M4: 1,152,801 km (0.078 R)
• M5: 1,350,869 km (0.082 R)
• M6: 1,454,091 km (0.098 R)
• M7: 1,650,364 km (0.066 R)
• M8: 1,705,416 km (0.075 R)
• M9: 3,204,237 km (0.086 R)
• M10: 3,460,648 km (0.055 R)
• M11: 4,219,109 km (0.116 R)
• M12: 4,295,254 km (0.109 R)
• M13: 4,761,401 km (0.076 R)
• M14: 4,973,830 km (0.1 R)
• M15: 5,189,401 km (0.114 R)
• M16: 5,298,308 km (0.116 R)
• M17: 6,225,815 km (0.098 R)
• M18: 6,516,782 km (0.041 R)
• M19: 6,663,987 km (0.073 R)
• M20: 6,723,078 km (0.094 R)
• M21: 7,051,744 km (0.091 R)
• M22: 7,943,049 km (0.057 R)
• M23: 8,100,276 km (0.091 R)
• M24: 8,290,415 km (0.106 R)
• M25: 9,196,828 km (0.093 R)
• M26: 9,362,134 km (0.099 R)
• M27: 9,628,418 km (0.113 R)
• M28: 10,684,130 km (0.064 R)
• M29: 10,927,526 km (0.116 R)
• M30: 11,032,394 km (0.065 R)
• M31: 11,668,784 km (0.096 R)
• M32: 11,883,606 km (0.068 R)
• M33: 12,027,519 km (0.077 R)
• M34: 12,829,513 km (0.044 R)
• M35: 13,051,217 km (0.098 R)
• M36: 13,423,567 km (0.047 R)
• M37: 13,498,365 km (0.112 R)
• M38: 14,178,587 km (0.081 R)
• M39: 14,754,090 km (0.079 R)
• M40: 14,947,520 km (0.1 R)
• M41: 15,180,893 km (0.117 R)
• M42: 16,847,712 km (0.105 R)
• M43: 17,252,973 km (0.099 R)
• M44: 17,784,793 km (0.108 R)
• M45: 17,990,790 km (0.104 R)
• M46: 18,073,368 km (0.079 R)
• M47: 18,990,403 km (0.09 R)
• M48: 19,837,126 km (0.068 R)
• M49: 19,965,182 km (0.039 R)
• M50: 20,308,210 km (0.057 R)
• M51: 20,566,566 km (0.107 R)
• M52: 20,999,801 km (0.113 R)
• M53: 21,831,116 km (0.094 R)
• M54: 22,361,740 km (0.105 R)
• M55: 23,616,268 km (0.081 R)
• M56: 24,755,605 km (0.1 R)
• M57: 25,031,613 km (0.028 R)
• M58: 25,355,044 km (0.1 R)
• M59: 26,615,406 km (0.11 R)
• M60: 27,848,392 km (0.083 R)
• M61: 27,991,706 km (0.079 R)
• M62: 29,293,956 km (0.073 R)
• M63: 30,566,435 km (0.074 R)
• M64: 31,806,901 km (0.106 R)
• M65: 32,207,374 km (0.074 R)
• M66: 32,408,135 km (0.109 R)
• M67: 33,063,822 km (0.082 R)
• M68: 33,165,100 km (0.067 R)
• M69: 33,317,091 km (0.087 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.5

Radius: 8.2

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 9.38 AU - 12.36 AU

Year: 13647 Days

Day: 6.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 110.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 18,309,718 km

• M1: 110,403 km (0.087 R)
• M2: 236,813 km (0.09 R)
• M3: 577,298 km (0.107 R)
• M4: 721,511 km (0.102 R)
• M5: 1,086,529 km (0.095 R)
• M6: 1,149,211 km (0.045 R)
• M7: 1,245,552 km (0.096 R)
• M8: 1,669,811 km (0.099 R)
• M9: 1,879,248 km (0.071 R)
• M10: 1,955,244 km (0.091 R)
• M11: 2,149,721 km (0.031 R)
• M12: 3,034,144 km (0.082 R)
• M13: 3,108,793 km (0.049 R)
• M14: 3,727,680 km (0.112 R)
• M15: 3,969,430 km (0.109 R)
• M16: 5,111,161 km (0.1 R)
• M17: 5,727,055 km (0.107 R)
• M18: 6,988,614 km (0.116 R)
• M19: 7,367,246 km (0.085 R)
• M20: 7,691,425 km (0.065 R)
• M21: 9,533,872 km (0.09 R)
• M22: 10,266,752 km (0.11 R)
• M23: 10,334,371 km (0.062 R)
• M24: 10,401,989 km (0.095 R)
• M25: 10,834,177 km (0.098 R)
• M26: 11,040,921 km (0.099 R)
• M27: 11,341,912 km (0.06 R)
• M28: 13,301,794 km (0.083 R)
• M29: 13,770,634 km (0.108 R)
• M30: 14,295,273 km (0.078 R)
• M31: 15,081,560 km (0.067 R)
• M32: 15,312,389 km (0.105 R)
• M33: 15,492,804 km (0.114 R)
• M34: 15,803,669 km (0.108 R)
• M35: 15,986,028 km (0.107 R)
• M36: 16,116,777 km (0.103 R)
• M37: 16,379,172 km (0.056 R)
• M38: 16,801,935 km (0.026 R)
• M39: 17,442,813 km (0.108 R)
• M40: 17,685,161 km (0.091 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: 449 - 17,235 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit