🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.62 AU - 0.72 AU

Year: 360 Days

Day: 25.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.4

Radius: 11

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.85 AU - 1.15 AU

Year: 656 Days

Day: 12.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 45,905,286 km

• M1: 137,331 km (0.085 R)
• M2: 522,246 km (0.054 R)
• M3: 964,757 km (0.06 R)
• M4: 1,314,816 km (0.107 R)
• M5: 2,163,185 km (0.114 R)
• M6: 2,671,070 km (0.097 R)
• M7: 3,076,331 km (0.102 R)
• M8: 3,871,892 km (0.099 R)
• M9: 4,318,591 km (0.08 R)
• M10: 4,735,371 km (0.042 R)
• M11: 5,490,242 km (0.106 R)
• M12: 6,017,874 km (0.117 R)
• M13: 6,639,154 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.1

Radius: 10.2

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 0.83 AU - 1.33 AU

Year: 736 Days

Day: 10.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,905,286 km

• M1: 126,859 km (0.058 R)
• M2: 560,693 km (0.086 R)
• M3: 1,038,209 km (0.1 R)
• M4: 1,748,500 km (0.087 R)
• M5: 2,260,424 km (0.04 R)
• M6: 2,828,148 km (0.038 R)
• M7: 3,299,979 km (0.032 R)
• M8: 3,635,079 km (0.056 R)
• M9: 4,112,894 km (0.082 R)
• M10: 4,617,488 km (0.093 R)
• M11: 5,306,087 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961.5

Radius: 8.3

Gravity: 13.96 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 3.26 AU - 5.43 AU

Year: 5931 Days

Day: 14.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 45,905,286 km

• M1: 103,223 km (0.035 R)
• M2: 392,096 km (0.059 R)
• M3: 1,103,135 km (0.12 R)
• M4: 1,668,315 km (0.058 R)
• M5: 2,467,318 km (0.086 R)
• M6: 2,983,281 km (0.066 R)
• M7: 3,477,851 km (0.079 R)
• M8: 4,126,956 km (0.087 R)
• M9: 4,602,977 km (0.116 R)
• M10: 5,174,441 km (0.091 R)
• M11: 5,477,376 km (0.087 R)
• M12: 5,921,533 km (0.043 R)
• M13: 7,437,109 km (0.071 R)
• M14: 7,706,385 km (0.089 R)
• M15: 9,021,200 km (0.09 R)
• M16: 9,461,018 km (0.098 R)
• M17: 9,869,271 km (0.063 R)
• M18: 10,818,320 km (0.101 R)
• M19: 12,732,424 km (0.117 R)
• M20: 13,398,883 km (0.072 R)
• M21: 18,661,138 km (0.086 R)
• M22: 20,182,698 km (0.109 R)
• M23: 22,818,911 km (0.072 R)
• M24: 27,923,490 km (0.057 R)
• M25: 28,763,631 km (0.054 R)
• M26: 29,047,419 km (0.114 R)
• M27: 31,585,496 km (0.076 R)
• M28: 32,497,445 km (0.072 R)
• M29: 32,805,317 km (0.082 R)
• M30: 33,635,884 km (0.116 R)
• M31: 36,653,124 km (0.118 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 923.6

Radius: 5.6

Gravity: 29.45 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 5.07 AU - 6.73 AU

Year: 9401 Days

Day: 18 Hours

Environment

Temp: -215 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 45,905,286 km

• M1: 69,713 km (0.08 R)
• M2: 711,637 km (0.086 R)
• M3: 1,399,189 km (0.072 R)
• M4: 2,417,651 km (0.078 R)
• M5: 3,080,071 km (0.103 R)
• M6: 3,317,632 km (0.075 R)
• M7: 4,392,642 km (0.046 R)
• M8: 4,818,547 km (0.036 R)
• M9: 5,474,235 km (0.11 R)
• M10: 6,644,389 km (0.039 R)
• M11: 7,840,873 km (0.071 R)
• M12: 8,745,342 km (0.114 R)
• M13: 9,174,389 km (0.088 R)
• M14: 10,652,266 km (0.036 R)
• M15: 13,750,887 km (0.098 R)
• M16: 14,461,776 km (0.026 R)
• M17: 14,859,706 km (0.114 R)
• M18: 16,813,753 km (0.062 R)
• M19: 18,310,181 km (0.11 R)
• M20: 18,619,699 km (0.089 R)
• M21: 18,854,119 km (0.091 R)
• M22: 20,717,809 km (0.064 R)
• M23: 21,308,571 km (0.113 R)
• M24: 23,510,053 km (0.077 R)
• M25: 24,901,314 km (0.045 R)
• M26: 26,940,033 km (0.103 R)
• M27: 29,087,212 km (0.105 R)
• M28: 32,461,541 km (0.061 R)
• M29: 33,029,115 km (0.115 R)
• M30: 35,605,490 km (0.118 R)
• M31: 36,942,446 km (0.102 R)
• M32: 43,306,340 km (0.099 R)
• M33: 46,100,977 km (0.098 R)
• M34: 47,980,525 km (0.105 R)
• M35: 50,061,132 km (0.074 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 224.2

Radius: 6.8

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 6.36 AU - 8.06 AU

Year: 12700 Days

Day: 15.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 174.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 45,905,286 km

• M1: 133,292 km (0.055 R)
• M2: 725,550 km (0.104 R)
• M3: 1,170,603 km (0.101 R)
• M4: 2,395,212 km (0.098 R)
• M5: 3,355,031 km (0.084 R)
• M6: 4,332,803 km (0.091 R)
• M7: 4,772,920 km (0.072 R)
• M8: 5,646,123 km (0.095 R)
• M9: 6,480,879 km (0.03 R)
• M10: 7,823,370 km (0.027 R)
• M11: 10,749,355 km (0.111 R)
• M12: 11,972,916 km (0.084 R)
• M13: 12,239,051 km (0.118 R)
• M14: 13,005,291 km (0.026 R)
• M15: 14,154,801 km (0.108 R)
• M16: 15,245,968 km (0.111 R)
• M17: 16,132,634 km (0.105 R)
• M18: 17,526,438 km (0.088 R)
• M19: 18,078,005 km (0.071 R)
• M20: 20,400,063 km (0.11 R)
• M21: 21,164,658 km (0.098 R)
• M22: 22,995,586 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 778.5

Radius: 4.7

Gravity: 35.24 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 6.21 AU - 9.87 AU

Year: 14955 Days

Day: 21.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 45,905,286 km

• M1: 59,390 km (0.12 R)
• M2: 373,845 km (0.114 R)
• M3: 698,921 km (0.047 R)
• M4: 864,077 km (0.085 R)
• M5: 1,493,136 km (0.099 R)
• M6: 1,823,149 km (0.111 R)
• M7: 2,765,616 km (0.049 R)
• M8: 3,032,199 km (0.109 R)
• M9: 3,995,310 km (0.069 R)
• M10: 4,304,380 km (0.056 R)
• M11: 4,662,517 km (0.074 R)
• M12: 5,974,490 km (0.113 R)
• M13: 7,018,833 km (0.047 R)
• M14: 7,286,463 km (0.12 R)
• M15: 7,653,876 km (0.118 R)
• M16: 7,842,220 km (0.12 R)
• M17: 8,525,882 km (0.115 R)
• M18: 8,677,275 km (0.111 R)
• M19: 10,236,085 km (0.115 R)
• M20: 11,972,168 km (0.047 R)
• M21: 12,226,036 km (0.07 R)
• M22: 12,418,867 km (0.091 R)
• M23: 13,143,220 km (0.077 R)
• M24: 13,756,422 km (0.077 R)
• M25: 13,964,961 km (0.119 R)
• M26: 18,934,004 km (0.109 R)
• M27: 21,065,624 km (0.05 R)
• M28: 32,774,350 km (0.09 R)
• M29: 34,921,080 km (0.094 R)
• M30: 36,891,433 km (0.085 R)
• M31: 37,294,300 km (0.029 R)
• M32: 38,796,263 km (0.025 R)
• M33: 41,052,199 km (0.027 R)
• M34: 43,394,154 km (0.085 R)
• M35: 44,597,968 km (0.069 R)
• M36: 48,182,333 km (0.088 R)
• M37: 49,147,987 km (0.113 R)
• M38: 50,290,765 km (0.116 R)
• M39: 53,653,426 km (0.085 R)
• M40: 61,572,688 km (0.089 R)
• M41: 63,091,406 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 111.3

Radius: 4.4

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 10.07 AU - 11.51 AU

Year: 23251 Days

Day: 21.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 45,905,286 km

• M1: 55,202 km (0.112 R)
• M2: 485,445 km (0.092 R)
• M3: 1,305,092 km (0.069 R)
• M4: 1,557,164 km (0.111 R)
• M5: 2,247,858 km (0.119 R)
• M6: 2,712,209 km (0.118 R)
• M7: 2,880,507 km (0.067 R)
• M8: 5,515,374 km (0.073 R)
• M9: 5,820,554 km (0.076 R)
• M10: 6,065,595 km (0.117 R)
• M11: 10,824,304 km (0.048 R)
• M12: 11,794,595 km (0.05 R)
• M13: 14,921,490 km (0.077 R)
• M14: 16,604,167 km (0.109 R)
• M15: 17,527,335 km (0.106 R)
• M16: 26,748,099 km (0.097 R)
• M17: 32,269,158 km (0.063 R)
• M18: 35,874,617 km (0.113 R)
• M19: 37,292,954 km (0.096 R)
• M20: 45,357,326 km (0.089 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 233 - 12,399 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit