🌌 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: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.4 AU - 0.64 AU

Year: 132 Days

Day: 19 Hours

Environment

Temp: 251 °C

Axial Tilt: 47.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.53 AU - 0.59 AU

Year: 148 Days

Day: 22.7 Hours

Environment

Temp: 187 °C

Axial Tilt: 28.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 91,289,217 km

• M1: 141,669 km (0.065 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.17

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.9 AU - 1.06 AU

Year: 343 Days

Day: 30.4 Hours

Environment

Temp: 132 °C

Axial Tilt: 18 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.3

Radius: 0.62

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.52 AU - 1.84 AU

Year: 769 Days

Day: 44.9 Hours

Environment

Temp: -41 °C

Axial Tilt: 7.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.61

Radius: 1.21

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.84 AU - 2 AU

Year: 939 Days

Day: 36.2 Hours

Environment

Temp: -53 °C

Axial Tilt: 32.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 91,289,217 km

• M1: 279,598 km (0.093 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.54

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 2.47 AU - 2.75 AU

Year: 1489 Days

Day: 47 Hours

Environment

Temp: -72 °C

Axial Tilt: 43.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 91,289,217 km

• M1: 141,071 km (0.105 R)

Planet 7 - Terrestrial

Semi-Major Axis: 5.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 5.01 AU - 5.67 AU

Year: 4357 Days

Day: 39.7 Hours

Environment

Temp: -127 °C

Axial Tilt: 15.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 91,289,217 km

• M1: 467,493 km (0.094 R)
• M2: 2,417,950 km (0.119 R)

Asteroid Belt

Center: 9.6 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 13.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 351.6

Radius: 6

Gravity: 9.77 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 11.05 AU - 16.65 AU

Year: 18200 Days

Day: 19.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 91,289,217 km

• M1: 77,492 km (0.081 R)
• M2: 345,571 km (0.088 R)
• M3: 1,877,453 km (0.037 R)
• M4: 2,072,379 km (0.113 R)
• M5: 4,158,222 km (0.079 R)
• M6: 4,649,053 km (0.064 R)
• M7: 5,563,694 km (0.107 R)
• M8: 5,931,107 km (0.055 R)
• M9: 9,789,385 km (0.098 R)
• M10: 12,852,701 km (0.071 R)
• M11: 13,364,625 km (0.11 R)
• M12: 13,560,149 km (0.069 R)
• M13: 14,634,860 km (0.098 R)
• M14: 15,406,038 km (0.098 R)
• M15: 16,203,843 km (0.067 R)
• M16: 19,089,885 km (0.08 R)
• M17: 24,468,826 km (0.066 R)
• M18: 27,292,486 km (0.09 R)
• M19: 28,999,846 km (0.097 R)
• M20: 30,551,027 km (0.103 R)
• M21: 35,785,456 km (0.118 R)
• M22: 43,557,066 km (0.063 R)
• M23: 44,275,285 km (0.12 R)
• M24: 45,001,583 km (0.099 R)
• M25: 47,833,470 km (0.084 R)
• M26: 49,838,231 km (0.118 R)
• M27: 52,543,260 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 983.9

Radius: 4.8

Gravity: 42.7 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 13.85 AU - 21.17 AU

Year: 25872 Days

Day: 15.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 91,289,217 km

• M1: 59,690 km (0.054 R)
• M2: 240,105 km (0.083 R)
• M3: 509,082 km (0.119 R)
• M4: 815,009 km (0.097 R)
• M5: 1,689,858 km (0.071 R)
• M6: 1,998,628 km (0.097 R)
• M7: 2,248,157 km (0.045 R)
• M8: 2,978,344 km (0.066 R)
• M9: 4,098,682 km (0.065 R)
• M10: 5,013,025 km (0.116 R)
• M11: 5,827,435 km (0.106 R)
• M12: 7,990,172 km (0.068 R)
• M13: 10,434,152 km (0.103 R)
• M14: 11,537,437 km (0.097 R)
• M15: 15,483,828 km (0.036 R)
• M16: 17,007,184 km (0.112 R)
• M17: 19,627,689 km (0.116 R)
• M18: 24,690,680 km (0.084 R)
• M19: 26,018,510 km (0.12 R)
• M20: 31,248,452 km (0.114 R)
• M21: 32,230,263 km (0.114 R)
• M22: 37,293,403 km (0.106 R)
• M23: 40,671,323 km (0.111 R)
• M24: 41,170,082 km (0.111 R)
• M25: 45,129,190 km (0.083 R)
• M26: 47,109,267 km (0.073 R)
• M27: 49,901,811 km (0.073 R)
• M28: 50,282,238 km (0.082 R)
• M29: 50,473,274 km (0.063 R)
• M30: 52,018,321 km (0.098 R)
• M31: 56,223,817 km (0.081 R)
• M32: 57,465,778 km (0.055 R)
• M33: 59,576,006 km (0.11 R)
• M34: 59,789,931 km (0.099 R)
• M35: 66,445,390 km (0.109 R)
• M36: 68,066,433 km (0.117 R)
• M37: 69,476,692 km (0.095 R)
• M38: 72,112,457 km (0.046 R)
• M39: 84,126,811 km (0.083 R)
• M40: 88,502,549 km (0.068 R)
• M41: 99,497,693 km (0.084 R)

Planet 10 - Ice Giant

Semi-Major Axis: 18.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 559.5

Radius: 3.8

Gravity: 38.75 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 16.64 AU - 21.22 AU

Year: 29082 Days

Day: 23.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 91,289,217 km

• M1: 62,382 km (0.079 R)
• M2: 197,170 km (0.108 R)
• M3: 331,210 km (0.115 R)
• M4: 544,686 km (0.069 R)
• M5: 755,469 km (0.099 R)
• M6: 979,567 km (0.044 R)
• M7: 1,171,950 km (0.113 R)
• M8: 2,007,603 km (0.079 R)
• M9: 2,953,810 km (0.119 R)
• M10: 4,411,492 km (0.051 R)
• M11: 4,744,347 km (0.086 R)
• M12: 5,053,865 km (0.088 R)
• M13: 7,872,738 km (0.025 R)
• M14: 8,585,422 km (0.041 R)
• M15: 12,510,122 km (0.119 R)
• M16: 12,802,735 km (0.071 R)
• M17: 13,174,935 km (0.073 R)
• M18: 13,554,315 km (0.091 R)
• M19: 14,097,655 km (0.067 R)
• M20: 16,329,655 km (0.091 R)
• M21: 17,574,907 km (0.094 R)
• M22: 21,374,544 km (0.106 R)
• M23: 25,922,917 km (0.111 R)
• M24: 26,758,721 km (0.047 R)
• M25: 27,122,543 km (0.103 R)
• M26: 29,118,029 km (0.08 R)
• M27: 37,623,565 km (0.068 R)
• M28: 42,519,006 km (0.104 R)
• M29: 43,346,282 km (0.067 R)
• M30: 43,680,185 km (0.084 R)
• M31: 44,184,330 km (0.083 R)
• M32: 48,000,122 km (0.096 R)
• M33: 51,281,103 km (0.074 R)
• M34: 51,467,502 km (0.081 R)
• M35: 70,633,981 km (0.086 R)
• M36: 71,560,590 km (0.115 R)
• M37: 74,389,486 km (0.09 R)
• M38: 78,523,174 km (0.097 R)
• M39: 89,656,697 km (0.085 R)
• M40: 89,927,469 km (0.118 R)

Kuiper Belt

Range: 31.1 - 57.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 17,344 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit