🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.53 AU - 0.61 AU

Year: 282 Days

Day: 36.6 Hours

Environment

Temp: -120 °C

Axial Tilt: 30 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,372,107 km

• M1: 63,429 km (0.118 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.51 AU - 0.75 AU

Year: 328 Days

Day: 29.5 Hours

Environment

Temp: -121 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,372,107 km

• M1: 37,399 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.6

Radius: 14.9

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.78 AU - 0.96 AU

Year: 532 Days

Day: 12.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,372,107 km

• M1: 186,249 km (0.09 R)
• M2: 721,959 km (0.062 R)
• M3: 1,298,061 km (0.08 R)
• M4: 1,936,694 km (0.07 R)
• M5: 2,445,327 km (0.032 R)
• M6: 3,385,849 km (0.101 R)
• M7: 4,650,699 km (0.118 R)
• M8: 5,296,363 km (0.082 R)
• M9: 5,888,920 km (0.116 R)
• M10: 6,525,758 km (0.113 R)
• M11: 7,337,327 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.6

Radius: 9.9

Gravity: 5.63 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.07 AU - 1.17 AU

Year: 778 Days

Day: 7.3 Hours

Environment

Temp: -162 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,372,107 km

• M1: 123,119 km (0.072 R)
• M2: 466,147 km (0.106 R)
• M3: 809,324 km (0.117 R)
• M4: 1,141,282 km (0.081 R)
• M5: 1,660,088 km (0.088 R)
• M6: 2,039,169 km (0.107 R)
• M7: 2,486,616 km (0.041 R)
• M8: 3,109,392 km (0.059 R)
• M9: 3,485,032 km (0.077 R)
• M10: 4,328,016 km (0.072 R)
• M11: 5,265,546 km (0.072 R)
• M12: 5,801,555 km (0.025 R)
• M13: 6,192,155 km (0.081 R)
• M14: 6,875,069 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.3

Radius: 14.7

Gravity: 0.07 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 2.25 AU - 2.55 AU

Year: 2439 Days

Day: 9.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 47,372,107 km

• M1: 182,809 km (0.118 R)
• M2: 2,416,305 km (0.107 R)
• M3: 3,343,662 km (0.097 R)
• M4: 3,939,959 km (0.043 R)
• M5: 4,403,264 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.3

Radius: 11.5

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 2.23 AU - 2.87 AU

Year: 2671 Days

Day: 11.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,372,107 km

• M1: 145,260 km (0.12 R)
• M2: 950,545 km (0.104 R)
• M3: 1,325,587 km (0.104 R)
• M4: 2,485,569 km (0.118 R)
• M5: 2,915,064 km (0.074 R)
• M6: 3,544,871 km (0.064 R)
• M7: 4,807,328 km (0.077 R)
• M8: 5,709,702 km (0.1 R)
• M9: 7,640,113 km (0.065 R)
• M10: 8,838,990 km (0.102 R)
• M11: 9,604,034 km (0.054 R)
• M12: 9,971,895 km (0.11 R)
• M13: 10,349,031 km (0.119 R)
• M14: 10,866,789 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.3

Radius: 12.3

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.62 AU - 4.28 AU

Year: 4204 Days

Day: 6.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,372,107 km

• M1: 153,188 km (0.046 R)
• M2: 645,664 km (0.034 R)
• M3: 1,170,304 km (0.082 R)
• M4: 1,821,952 km (0.08 R)
• M5: 2,372,921 km (0.113 R)
• M6: 4,674,335 km (0.057 R)
• M7: 6,203,225 km (0.115 R)
• M8: 7,972,968 km (0.101 R)
• M9: 9,417,186 km (0.065 R)
• M10: 10,727,215 km (0.087 R)
• M11: 13,257,214 km (0.097 R)
• M12: 15,659,606 km (0.066 R)
• M13: 17,374,745 km (0.094 R)
• M14: 18,585,740 km (0.029 R)
• M15: 19,658,656 km (0.084 R)
• M16: 20,639,121 km (0.115 R)
• M17: 23,053,780 km (0.073 R)
• M18: 24,664,500 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.2

Radius: 10.6

Gravity: 7.64 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 3.24 AU - 4.12 AU

Year: 4631 Days

Day: 13.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,372,107 km

• M1: 131,945 km (0.119 R)
• M2: 464,202 km (0.06 R)
• M3: 1,049,279 km (0.089 R)
• M4: 1,730,099 km (0.104 R)
• M5: 2,073,576 km (0.071 R)
• M6: 2,882,601 km (0.048 R)
• M7: 3,516,597 km (0.035 R)
• M8: 4,193,378 km (0.081 R)
• M9: 4,795,360 km (0.058 R)
• M10: 5,657,343 km (0.086 R)
• M11: 6,751,202 km (0.064 R)
• M12: 7,759,791 km (0.112 R)
• M13: 10,118,052 km (0.099 R)
• M14: 13,439,424 km (0.073 R)
• M15: 14,468,059 km (0.069 R)
• M16: 15,841,667 km (0.107 R)
• M17: 19,721,487 km (0.087 R)
• M18: 23,111,973 km (0.032 R)
• M19: 25,549,820 km (0.116 R)
• M20: 26,040,651 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 97.9

Radius: 6.9

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 7.55 AU - 11.59 AU

Year: 19421 Days

Day: 24.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 47,372,107 km

• M1: 113,246 km (0.107 R)
• M2: 406,607 km (0.107 R)
• M3: 1,075,010 km (0.088 R)
• M4: 1,670,410 km (0.099 R)
• M5: 2,503,072 km (0.064 R)
• M6: 2,788,205 km (0.115 R)
• M7: 3,116,273 km (0.115 R)
• M8: 3,469,923 km (0.119 R)
• M9: 4,390,548 km (0.114 R)
• M10: 5,098,894 km (0.091 R)
• M11: 6,776,185 km (0.094 R)
• M12: 7,143,747 km (0.11 R)
• M13: 8,120,920 km (0.094 R)
• M14: 9,273,123 km (0.109 R)
• M15: 10,337,662 km (0.117 R)
• M16: 11,175,111 km (0.095 R)
• M17: 14,254,134 km (0.114 R)
• M18: 16,971,280 km (0.059 R)
• M19: 18,700,033 km (0.09 R)
• M20: 20,165,195 km (0.091 R)
• M21: 22,584,641 km (0.052 R)
• M22: 26,975,338 km (0.11 R)
• M23: 31,395,208 km (0.085 R)
• M24: 32,519,436 km (0.113 R)
• M25: 32,830,599 km (0.104 R)
• M26: 36,833,689 km (0.108 R)
• M27: 37,058,983 km (0.108 R)
• M28: 37,285,175 km (0.07 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 143.1

Radius: 8

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 7.77 AU - 12.71 AU

Year: 21496 Days

Day: 18.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 47,372,107 km

• M1: 111,301 km (0.115 R)
• M2: 1,338,003 km (0.111 R)
• M3: 4,407,153 km (0.089 R)
• M4: 5,661,083 km (0.114 R)
• M5: 6,823,458 km (0.051 R)
• M6: 12,491,721 km (0.051 R)
• M7: 16,453,372 km (0.109 R)
• M8: 17,378,785 km (0.051 R)
• M9: 30,907,668 km (0.053 R)
• M10: 34,103,827 km (0.091 R)
• M11: 39,238,175 km (0.113 R)
• M12: 40,757,940 km (0.115 R)
• M13: 42,580,192 km (0.102 R)
• M14: 44,184,778 km (0.073 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 271 - 18,715 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit