🌌 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: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.56 AU - 0.6 AU

Year: 290 Days

Day: 33.9 Hours

Environment

Temp: -119 °C

Axial Tilt: 9.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.4

Radius: 9.9

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.55 AU - 0.87 AU

Year: 392 Days

Day: 8.8 Hours

Environment

Temp: -137 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,008,785 km

• M1: 123,119 km (0.079 R)
• M2: 437,723 km (0.095 R)
• M3: 760,256 km (0.113 R)
• M4: 1,292,226 km (0.115 R)
• M5: 2,218,536 km (0.089 R)
• M6: 2,702,336 km (0.053 R)
• M7: 3,134,973 km (0.059 R)
• M8: 3,791,259 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.1

Radius: 12.1

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.76 AU - 1.18 AU

Year: 627 Days

Day: 12 Hours

Environment

Temp: -149 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,008,785 km

• M1: 150,944 km (0.119 R)
• M2: 554,410 km (0.116 R)
• M3: 1,135,897 km (0.098 R)
• M4: 1,513,930 km (0.073 R)
• M5: 2,046,798 km (0.111 R)
• M6: 2,567,399 km (0.06 R)
• M7: 3,946,841 km (0.116 R)
• M8: 4,362,424 km (0.039 R)
• M9: 4,744,197 km (0.093 R)
• M10: 5,367,572 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.2

Radius: 10.2

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.34 AU - 1.46 AU

Year: 1087 Days

Day: 8.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,008,785 km

• M1: 171,140 km (0.087 R)
• M2: 724,203 km (0.096 R)
• M3: 1,226,852 km (0.102 R)
• M4: 1,551,031 km (0.027 R)
• M5: 1,923,679 km (0.065 R)
• M6: 2,245,015 km (0.063 R)
• M7: 3,674,722 km (0.115 R)
• M8: 4,905,314 km (0.108 R)
• M9: 5,677,239 km (0.091 R)
• M10: 7,386,844 km (0.12 R)
• M11: 7,766,224 km (0.094 R)
• M12: 8,646,907 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.4

Radius: 14.9

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.31 AU - 2.95 AU

Year: 2798 Days

Day: 14.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,008,785 km

• M1: 185,352 km (0.09 R)
• M2: 1,007,392 km (0.063 R)
• M3: 1,626,877 km (0.038 R)
• M4: 3,596,782 km (0.049 R)
• M5: 4,324,276 km (0.12 R)
• M6: 4,954,233 km (0.115 R)
• M7: 6,100,003 km (0.074 R)
• M8: 6,921,744 km (0.107 R)
• M9: 7,443,990 km (0.081 R)
• M10: 8,475,318 km (0.104 R)
• M11: 12,623,068 km (0.058 R)
• M12: 13,574,212 km (0.041 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.3

Radius: 14

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.05 AU - 3.31 AU

Year: 3720 Days

Day: 12.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,008,785 km

• M1: 174,132 km (0.086 R)
• M2: 738,116 km (0.077 R)
• M3: 1,212,940 km (0.093 R)
• M4: 1,964,070 km (0.046 R)
• M5: 2,922,544 km (0.111 R)
• M6: 4,686,452 km (0.108 R)
• M7: 5,189,251 km (0.109 R)
• M8: 6,011,291 km (0.097 R)
• M9: 6,454,101 km (0.089 R)
• M10: 6,950,467 km (0.106 R)
• M11: 7,674,820 km (0.074 R)
• M12: 8,412,636 km (0.033 R)
• M13: 9,391,156 km (0.092 R)
• M14: 10,194,646 km (0.113 R)
• M15: 12,077,186 km (0.112 R)
• M16: 13,272,921 km (0.058 R)
• M17: 17,572,813 km (0.113 R)
• M18: 20,200,500 km (0.113 R)
• M19: 25,297,748 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.6

Radius: 12.8

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.1 AU - 3.72 AU

Year: 4131 Days

Day: 9.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,008,785 km

• M1: 159,322 km (0.084 R)
• M2: 651,050 km (0.106 R)
• M3: 1,562,550 km (0.092 R)
• M4: 2,715,052 km (0.03 R)
• M5: 12,058,785 km (0.09 R)
• M6: 15,538,282 km (0.052 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 402.8

Radius: 4.1

Gravity: 23.96 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 6.34 AU - 8.64 AU

Year: 13447 Days

Day: 21.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 69,008,785 km

• M1: 51,013 km (0.119 R)
• M2: 274,512 km (0.109 R)
• M3: 726,597 km (0.113 R)
• M4: 1,034,469 km (0.033 R)
• M5: 1,318,406 km (0.109 R)
• M6: 1,506,899 km (0.095 R)
• M7: 2,057,868 km (0.088 R)
• M8: 2,408,077 km (0.088 R)
• M9: 2,883,649 km (0.106 R)
• M10: 4,018,648 km (0.03 R)
• M11: 4,157,624 km (0.045 R)
• M12: 4,504,541 km (0.06 R)
• M13: 5,557,860 km (0.059 R)
• M14: 6,457,990 km (0.081 R)
• M15: 8,049,861 km (0.086 R)
• M16: 9,245,597 km (0.089 R)
• M17: 13,784,845 km (0.037 R)
• M18: 17,322,386 km (0.081 R)
• M19: 19,063,406 km (0.084 R)
• M20: 24,515,052 km (0.118 R)
• M21: 25,356,540 km (0.037 R)
• M22: 25,832,112 km (0.115 R)
• M23: 26,410,756 km (0.108 R)
• M24: 27,794,387 km (0.111 R)
• M25: 33,698,267 km (0.113 R)
• M26: 38,731,637 km (0.026 R)
• M27: 43,290,632 km (0.091 R)
• M28: 44,518,232 km (0.102 R)
• M29: 44,656,012 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 602.1

Radius: 4.5

Gravity: 29.73 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 8 AU - 10.48 AU

Year: 18425 Days

Day: 19.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 69,008,785 km

• M1: 56,249 km (0.108 R)
• M2: 214,523 km (0.064 R)
• M3: 419,173 km (0.11 R)
• M4: 2,379,504 km (0.092 R)
• M5: 2,579,217 km (0.066 R)
• M6: 3,114,777 km (0.108 R)
• M7: 3,634,331 km (0.108 R)
• M8: 5,164,567 km (0.076 R)
• M9: 5,849,875 km (0.106 R)
• M10: 7,399,260 km (0.102 R)
• M11: 9,042,144 km (0.052 R)
• M12: 9,529,235 km (0.119 R)
• M13: 14,949,764 km (0.08 R)
• M14: 19,879,612 km (0.098 R)
• M15: 24,114,578 km (0.111 R)
• M16: 24,527,020 km (0.119 R)
• M17: 33,411,039 km (0.072 R)
• M18: 36,429,475 km (0.085 R)
• M19: 37,108,949 km (0.061 R)
• M20: 38,074,304 km (0.11 R)
• M21: 39,056,264 km (0.096 R)
• M22: 41,954,872 km (0.113 R)
• M23: 44,838,222 km (0.114 R)
• M24: 48,665,534 km (0.117 R)
• M25: 52,532,339 km (0.055 R)
• M26: 58,987,936 km (0.088 R)
• M27: 59,174,335 km (0.092 R)
• M28: 61,061,064 km (0.039 R)
• M29: 62,019,238 km (0.085 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 287 - 10,653 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit