🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.67 AU - 0.93 AU

Year: 275 Days

Day: 35.8 Hours

Environment

Temp: 24 °C

Axial Tilt: 0.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.09 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.71

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.04 AU - 1.14 AU

Year: 438 Days

Day: 45.7 Hours

Environment

Temp: -20 °C

Axial Tilt: 8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.21 AU - 1.71 AU

Year: 679 Days

Day: 15.5 Hours

Environment

Temp: -61 °C

Axial Tilt: 97.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,784,625 km

• M1: 1,036,115 km (0.083 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.28 AU - 1.64 AU

Year: 679 Days

Day: 15.6 Hours

Environment

Temp: -44 °C

Axial Tilt: 1.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,784,625 km

• M1: 42,187 km (0.104 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.4

Radius: 1.14

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.47 AU - 1.99 AU

Year: 876 Days

Day: 41.1 Hours

Environment

Temp: -64 °C

Axial Tilt: 1.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.76

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.76 AU - 2.74 AU

Year: 1299 Days

Day: 27.8 Hours

Environment

Temp: -102 °C

Axial Tilt: 28.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,784,625 km

• M1: 1,358,049 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.8

Radius: 8

Gravity: 11.78 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 4.69 AU - 6.67 AU

Year: 5212 Days

Day: 8.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 64,784,625 km

• M1: 99,632 km (0.101 R)
• M2: 366,814 km (0.079 R)
• M3: 749,485 km (0.077 R)
• M4: 1,032,973 km (0.026 R)
• M5: 1,311,375 km (0.088 R)
• M6: 1,838,857 km (0.115 R)
• M7: 3,767,024 km (0.105 R)
• M8: 4,669,997 km (0.053 R)
• M9: 5,243,106 km (0.097 R)
• M10: 8,126,456 km (0.08 R)
• M11: 10,145,428 km (0.1 R)
• M12: 10,458,986 km (0.066 R)
• M13: 10,871,427 km (0.1 R)
• M14: 11,680,153 km (0.111 R)
• M15: 12,785,532 km (0.09 R)
• M16: 13,632,256 km (0.118 R)
• M17: 14,742,421 km (0.115 R)
• M18: 16,092,393 km (0.108 R)
• M19: 17,909,558 km (0.116 R)
• M20: 18,633,312 km (0.106 R)
• M21: 20,492,216 km (0.091 R)
• M22: 20,777,798 km (0.083 R)
• M23: 23,004,712 km (0.075 R)
• M24: 23,702,735 km (0.094 R)
• M25: 24,978,356 km (0.115 R)
• M26: 26,047,981 km (0.073 R)
• M27: 28,632,284 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 985.4

Radius: 7

Gravity: 20.11 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 13.55 AU - 14.45 AU

Year: 20168 Days

Day: 20.5 Hours

Environment

Temp: -186 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 64,784,625 km

• M1: 87,066 km (0.065 R)
• M2: 308,920 km (0.1 R)
• M3: 607,218 km (0.099 R)
• M4: 1,901,239 km (0.062 R)
• M5: 2,191,459 km (0.05 R)
• M6: 2,511,299 km (0.048 R)
• M7: 2,733,003 km (0.078 R)
• M8: 4,079,384 km (0.077 R)
• M9: 5,127,168 km (0.107 R)
• M10: 5,609,471 km (0.064 R)
• M11: 6,479,832 km (0.114 R)
• M12: 6,899,753 km (0.116 R)
• M13: 11,068,148 km (0.108 R)
• M14: 11,465,929 km (0.118 R)
• M15: 11,941,800 km (0.085 R)
• M16: 13,079,192 km (0.075 R)
• M17: 15,485,175 km (0.049 R)
• M18: 16,151,035 km (0.051 R)
• M19: 17,450,592 km (0.113 R)
• M20: 19,100,207 km (0.065 R)
• M21: 20,060,326 km (0.092 R)
• M22: 26,624,232 km (0.106 R)
• M23: 30,065,582 km (0.043 R)
• M24: 31,231,697 km (0.115 R)
• M25: 34,208,844 km (0.1 R)
• M26: 35,479,379 km (0.039 R)
• M27: 40,877,319 km (0.111 R)
• M28: 44,931,870 km (0.113 R)
• M29: 46,113,394 km (0.044 R)
• M30: 56,907,030 km (0.056 R)
• M31: 57,892,431 km (0.068 R)
• M32: 59,290,872 km (0.084 R)
• M33: 61,533,643 km (0.109 R)
• M34: 62,363,014 km (0.11 R)
• M35: 64,469,202 km (0.062 R)
• M36: 71,298,944 km (0.115 R)
• M37: 71,984,401 km (0.113 R)
• M38: 72,905,026 km (0.101 R)
• M39: 78,110,135 km (0.106 R)
• M40: 78,352,483 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 468.3

Radius: 5.6

Gravity: 14.93 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 13.17 AU - 16.83 AU

Year: 22367 Days

Day: 16 Hours

Environment

Temp: -193 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 64,784,625 km

• M1: 73,602 km (0.1 R)
• M2: 259,253 km (0.059 R)
• M3: 827,426 km (0.069 R)
• M4: 1,018,014 km (0.087 R)
• M5: 1,489,696 km (0.056 R)
• M6: 2,218,985 km (0.066 R)
• M7: 10,155,900 km (0.064 R)
• M8: 10,994,396 km (0.118 R)
• M9: 11,748,968 km (0.025 R)
• M10: 12,073,446 km (0.03 R)
• M11: 14,662,686 km (0.118 R)
• M12: 15,498,489 km (0.116 R)
• M13: 18,282,655 km (0.068 R)
• M14: 20,067,058 km (0.065 R)
• M15: 26,887,076 km (0.089 R)
• M16: 29,306,073 km (0.065 R)
• M17: 30,874,158 km (0.06 R)
• M18: 34,572,068 km (0.118 R)
• M19: 34,970,746 km (0.064 R)
• M20: 38,129,206 km (0.091 R)
• M21: 39,559,811 km (0.098 R)
• M22: 46,281,243 km (0.109 R)
• M23: 53,725,083 km (0.117 R)
• M24: 57,172,117 km (0.08 R)
• M25: 57,729,519 km (0.058 R)
• M26: 59,044,185 km (0.101 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 230.6

Radius: 5.8

Gravity: 6.85 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 16.97 AU - 17.11 AU

Year: 27082 Days

Day: 22.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 64,784,625 km

• M1: 72,256 km (0.091 R)
• M2: 313,108 km (0.112 R)
• M3: 671,395 km (0.109 R)
• M4: 1,035,516 km (0.116 R)
• M5: 1,666,819 km (0.039 R)
• M6: 3,376,723 km (0.035 R)
• M7: 3,595,136 km (0.082 R)
• M8: 4,370,951 km (0.118 R)
• M9: 5,547,089 km (0.097 R)
• M10: 6,008,449 km (0.044 R)
• M11: 7,095,427 km (0.1 R)
• M12: 8,911,246 km (0.082 R)
• M13: 9,118,888 km (0.078 R)
• M14: 10,547,697 km (0.071 R)
• M15: 12,246,680 km (0.109 R)
• M16: 12,503,390 km (0.065 R)
• M17: 20,330,201 km (0.119 R)
• M18: 24,732,717 km (0.112 R)
• M19: 25,349,958 km (0.11 R)
• M20: 26,508,443 km (0.077 R)
• M21: 27,263,614 km (0.113 R)
• M22: 28,367,347 km (0.047 R)
• M23: 29,615,591 km (0.032 R)
• M24: 39,394,355 km (0.076 R)
• M25: 41,520,739 km (0.117 R)
• M26: 45,538,789 km (0.101 R)
• M27: 48,197,292 km (0.053 R)
• M28: 50,627,510 km (0.063 R)
• M29: 52,292,235 km (0.106 R)
• M30: 62,862,671 km (0.086 R)
• M31: 63,626,817 km (0.12 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 259 - 18,521 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit