🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.95

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.5 AU - 0.64 AU

Year: 161 Days

Day: 16.7 Hours

Environment

Temp: 220 °C

Axial Tilt: 3.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 67,416,561 km

• M1: 31,116 km (0.027 R)
• M2: 103,971 km (0.092 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.73

Radius: 0.88

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.91 AU - 0.93 AU

Year: 331 Days

Day: 34.7 Hours

Environment

Temp: 15 °C

Axial Tilt: 10.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.81

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.73 AU - 1.11 AU

Year: 331 Days

Day: 14.2 Hours

Environment

Temp: 24 °C

Axial Tilt: 0.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.79 AU - 1.15 AU

Year: 358 Days

Day: 28.5 Hours

Environment

Temp: 35 °C

Axial Tilt: 33 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 67,416,561 km

• M1: 566,826 km (0.059 R)

Planet 5 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.78 AU - 1.18 AU

Year: 364 Days

Day: 23 Hours

Environment

Temp: 33 °C

Axial Tilt: 1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 67,416,561 km

• M1: 298,747 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.3

Radius: 10.4

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 3.99 AU - 5.71 AU

Year: 4003 Days

Day: 10 Hours

Environment

Temp: -143 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 67,416,561 km

• M1: 133,890 km (0.046 R)
• M2: 468,989 km (0.097 R)
• M3: 854,802 km (0.113 R)
• M4: 1,182,571 km (0.098 R)
• M5: 1,627,774 km (0.086 R)
• M6: 2,070,285 km (0.064 R)
• M7: 2,679,896 km (0.1 R)
• M8: 3,711,972 km (0.03 R)
• M9: 4,298,246 km (0.099 R)
• M10: 4,945,257 km (0.09 R)
• M11: 5,484,108 km (0.111 R)
• M12: 6,114,065 km (0.069 R)
• M13: 7,978,503 km (0.04 R)
• M14: 9,579,500 km (0.077 R)
• M15: 11,226,123 km (0.067 R)
• M16: 12,622,021 km (0.1 R)
• M17: 13,450,793 km (0.041 R)
• M18: 13,992,487 km (0.115 R)
• M19: 16,306,766 km (0.115 R)
• M20: 18,092,965 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189

Radius: 10.4

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 9.86 AU - 12.74 AU

Year: 14235 Days

Day: 12.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,416,561 km

• M1: 130,001 km (0.043 R)
• M2: 736,919 km (0.098 R)
• M3: 1,191,996 km (0.106 R)
• M4: 1,530,985 km (0.063 R)
• M5: 2,446,075 km (0.072 R)
• M6: 2,942,291 km (0.069 R)
• M7: 3,302,373 km (0.107 R)
• M8: 4,347,314 km (0.111 R)
• M9: 4,845,325 km (0.06 R)
• M10: 5,350,218 km (0.066 R)
• M11: 5,889,818 km (0.066 R)
• M12: 10,543,808 km (0.064 R)
• M13: 10,888,182 km (0.085 R)
• M14: 12,835,198 km (0.081 R)
• M15: 13,171,494 km (0.119 R)
• M16: 13,979,173 km (0.08 R)
• M17: 24,044,866 km (0.081 R)
• M18: 32,094,278 km (0.11 R)
• M19: 34,194,333 km (0.061 R)
• M20: 34,841,793 km (0.049 R)
• M21: 36,608,394 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 300.4

Radius: 4.4

Gravity: 15.52 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 9.63 AU - 15.59 AU

Year: 16780 Days

Day: 18.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 67,416,561 km

• M1: 54,753 km (0.101 R)
• M2: 293,960 km (0.12 R)
• M3: 565,181 km (0.101 R)
• M4: 747,241 km (0.106 R)
• M5: 1,281,904 km (0.059 R)
• M6: 1,769,743 km (0.116 R)
• M7: 3,467,230 km (0.101 R)
• M8: 3,673,525 km (0.095 R)
• M9: 6,475,942 km (0.095 R)
• M10: 6,789,200 km (0.051 R)
• M11: 6,949,419 km (0.035 R)
• M12: 7,702,495 km (0.073 R)
• M13: 8,054,050 km (0.108 R)
• M14: 8,836,597 km (0.102 R)
• M15: 9,319,947 km (0.089 R)
• M16: 13,457,974 km (0.09 R)
• M17: 15,574,186 km (0.115 R)
• M18: 20,786,774 km (0.101 R)
• M19: 33,186,792 km (0.114 R)
• M20: 35,301,058 km (0.071 R)
• M21: 35,903,938 km (0.086 R)
• M22: 37,879,078 km (0.097 R)
• M23: 38,638,138 km (0.097 R)
• M24: 39,795,427 km (0.084 R)
• M25: 40,843,510 km (0.116 R)
• M26: 42,857,995 km (0.114 R)
• M27: 43,959,035 km (0.057 R)
• M28: 49,898,819 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 788.1

Radius: 7.1

Gravity: 15.63 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 10.65 AU - 14.85 AU

Year: 17061 Days

Day: 15.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 67,416,561 km

• M1: 88,263 km (0.095 R)
• M2: 549,174 km (0.116 R)
• M3: 770,728 km (0.088 R)
• M4: 994,227 km (0.09 R)
• M5: 1,361,789 km (0.099 R)
• M6: 1,763,908 km (0.08 R)
• M7: 2,160,642 km (0.117 R)
• M8: 2,524,314 km (0.05 R)
• M9: 3,429,980 km (0.065 R)
• M10: 3,835,241 km (0.091 R)
• M11: 4,112,296 km (0.047 R)
• M12: 4,776,211 km (0.055 R)
• M13: 5,547,837 km (0.112 R)
• M14: 10,275,878 km (0.039 R)
• M15: 14,723,722 km (0.073 R)
• M16: 15,099,511 km (0.116 R)
• M17: 15,870,539 km (0.039 R)
• M18: 16,993,570 km (0.093 R)
• M19: 20,867,706 km (0.1 R)
• M20: 21,920,726 km (0.067 R)
• M21: 23,617,315 km (0.111 R)
• M22: 24,760,692 km (0.093 R)
• M23: 30,546,988 km (0.078 R)
• M24: 34,603,184 km (0.092 R)
• M25: 36,622,307 km (0.105 R)
• M26: 46,766,538 km (0.045 R)
• M27: 47,252,881 km (0.107 R)
• M28: 50,580,835 km (0.095 R)
• M29: 58,071,949 km (0.048 R)
• M30: 58,821,733 km (0.112 R)
• M31: 61,303,113 km (0.077 R)
• M32: 62,471,472 km (0.047 R)
• M33: 63,061,337 km (0.102 R)
• M34: 63,456,574 km (0.088 R)
• M35: 63,853,458 km (0.102 R)
• M36: 64,451,849 km (0.11 R)
• M37: 70,856,134 km (0.067 R)
• M38: 71,712,133 km (0.068 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 293.5

Radius: 5.2

Gravity: 10.85 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 16.36 AU - 16.96 AU

Year: 25482 Days

Day: 15.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 67,416,561 km

• M1: 69,264 km (0.095 R)
• M2: 325,375 km (0.107 R)
• M3: 1,527,394 km (0.086 R)
• M4: 1,724,415 km (0.043 R)
• M5: 4,215,518 km (0.113 R)
• M6: 5,271,530 km (0.028 R)
• M7: 6,663,239 km (0.043 R)
• M8: 6,968,418 km (0.104 R)
• M9: 8,134,983 km (0.102 R)
• M10: 8,433,281 km (0.1 R)
• M11: 11,578,726 km (0.056 R)
• M12: 12,406,899 km (0.09 R)
• M13: 18,221,769 km (0.083 R)
• M14: 21,903,073 km (0.06 R)
• M15: 22,870,672 km (0.117 R)
• M16: 27,357,262 km (0.109 R)
• M17: 32,520,932 km (0.107 R)
• M18: 32,894,926 km (0.109 R)
• M19: 34,162,319 km (0.105 R)
• M20: 35,199,481 km (0.095 R)
• M21: 35,991,004 km (0.114 R)
• M22: 46,119,677 km (0.106 R)
• M23: 47,545,644 km (0.05 R)
• M24: 49,492,212 km (0.078 R)
• M25: 53,543,621 km (0.069 R)
• M26: 55,649,810 km (0.092 R)
• M27: 66,211,419 km (0.075 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: 348 - 11,220 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit