🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.51 AU - 0.71 AU

Year: 303 Days

Day: 36.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 41 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 90,157,887 km

• M1: 408,851 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.9

Radius: 10.9

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.51 AU - 0.85 AU

Year: 357 Days

Day: 14.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 90,157,887 km

• M1: 136,134 km (0.051 R)
• M2: 939,026 km (0.106 R)
• M3: 1,287,589 km (0.083 R)
• M4: 1,635,105 km (0.078 R)
• M5: 2,281,068 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.5

Radius: 8.7

Gravity: 8.42 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.75 AU - 0.83 AU

Year: 446 Days

Day: 6.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 137.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 90,157,887 km

• M1: 108,159 km (0.11 R)
• M2: 380,128 km (0.112 R)
• M3: 852,708 km (0.114 R)
• M4: 1,247,945 km (0.066 R)
• M5: 1,645,128 km (0.083 R)
• M6: 2,049,042 km (0.076 R)
• M7: 2,357,214 km (0.075 R)
• M8: 2,809,747 km (0.109 R)
• M9: 3,902,111 km (0.096 R)
• M10: 4,464,898 km (0.109 R)
• M11: 4,925,360 km (0.088 R)
• M12: 5,271,231 km (0.108 R)
• M13: 5,734,834 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.3

Radius: 14.8

Gravity: 2.45 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.91 AU - 0.91 AU

Year: 552 Days

Day: 7.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 90,157,887 km

• M1: 184,005 km (0.087 R)
• M2: 758,461 km (0.119 R)
• M3: 1,354,310 km (0.113 R)
• M4: 1,868,777 km (0.074 R)
• M5: 2,429,170 km (0.088 R)
• M6: 3,250,911 km (0.044 R)
• M7: 3,818,336 km (0.106 R)
• M8: 4,495,566 km (0.091 R)
• M9: 4,964,705 km (0.096 R)
• M10: 5,618,746 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.7

Radius: 13.2

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.93 AU - 1.23 AU

Year: 714 Days

Day: 11.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 90,157,887 km

• M1: 167,400 km (0.093 R)
• M2: 1,016,218 km (0.072 R)
• M3: 1,444,966 km (0.105 R)
• M4: 1,966,314 km (0.081 R)
• M5: 4,946,902 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 225.4

Radius: 12.9

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 3.56 AU - 3.58 AU

Year: 4289 Days

Day: 11.3 Hours

Environment

Temp: -210 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 90,157,887 km

• M1: 160,369 km (0.1 R)
• M2: 766,091 km (0.104 R)
• M3: 1,523,206 km (0.111 R)
• M4: 2,211,057 km (0.08 R)
• M5: 2,635,615 km (0.083 R)
• M6: 3,114,927 km (0.116 R)
• M7: 3,579,727 km (0.119 R)
• M8: 4,071,156 km (0.118 R)
• M9: 4,607,465 km (0.116 R)
• M10: 5,237,571 km (0.112 R)
• M11: 5,924,524 km (0.084 R)
• M12: 6,505,862 km (0.103 R)
• M13: 7,449,076 km (0.032 R)
• M14: 8,779,001 km (0.111 R)
• M15: 10,150,365 km (0.087 R)
• M16: 11,338,771 km (0.087 R)
• M17: 12,278,844 km (0.105 R)
• M18: 13,990,991 km (0.108 R)
• M19: 15,266,164 km (0.05 R)
• M20: 17,295,758 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.9

Radius: 13.6

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 4.4 AU - 5.72 AU

Year: 7237 Days

Day: 12.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 90,157,887 km

• M1: 169,195 km (0.08 R)
• M2: 938,727 km (0.113 R)
• M3: 1,706,762 km (0.118 R)
• M4: 2,750,058 km (0.033 R)
• M5: 6,443,479 km (0.097 R)
• M6: 7,085,703 km (0.093 R)
• M7: 7,636,672 km (0.091 R)
• M8: 8,642,568 km (0.095 R)
• M9: 9,310,373 km (0.116 R)
• M10: 10,172,954 km (0.113 R)
• M11: 11,216,998 km (0.096 R)
• M12: 12,844,623 km (0.097 R)
• M13: 13,715,133 km (0.049 R)
• M14: 15,790,504 km (0.115 R)
• M15: 16,733,120 km (0.11 R)
• M16: 18,608,778 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 899.8

Radius: 3.2

Gravity: 87.87 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 5.12 AU - 8.2 AU

Year: 10928 Days

Day: 21.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 90,157,887 km

• M1: 52,359 km (0.079 R)
• M2: 182,958 km (0.063 R)
• M3: 427,551 km (0.106 R)
• M4: 690,843 km (0.09 R)
• M5: 1,029,383 km (0.1 R)
• M6: 1,557,613 km (0.091 R)
• M7: 2,132,218 km (0.12 R)
• M8: 2,405,683 km (0.084 R)
• M9: 2,858,965 km (0.074 R)
• M10: 3,117,919 km (0.063 R)
• M11: 4,652,643 km (0.107 R)
• M12: 5,527,941 km (0.106 R)
• M13: 5,966,861 km (0.118 R)
• M14: 6,428,520 km (0.107 R)
• M15: 6,954,955 km (0.1 R)
• M16: 8,706,446 km (0.111 R)
• M17: 11,704,238 km (0.109 R)
• M18: 12,859,732 km (0.075 R)
• M19: 14,697,991 km (0.117 R)
• M20: 16,929,093 km (0.085 R)
• M21: 17,694,436 km (0.117 R)
• M22: 17,928,407 km (0.066 R)
• M23: 18,164,473 km (0.067 R)
• M24: 18,402,632 km (0.058 R)
• M25: 19,791,499 km (0.081 R)
• M26: 20,640,317 km (0.101 R)
• M27: 20,812,953 km (0.091 R)
• M28: 22,960,281 km (0.062 R)
• M29: 27,168,469 km (0.089 R)
• M30: 28,109,889 km (0.091 R)
• M31: 31,290,938 km (0.108 R)
• M32: 38,617,344 km (0.102 R)
• M33: 44,662,145 km (0.055 R)
• M34: 45,678,363 km (0.08 R)
• M35: 46,561,739 km (0.089 R)
• M36: 50,053,204 km (0.054 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 447.8

Radius: 4.2

Gravity: 25.39 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 7.6 AU - 10.64 AU

Year: 17512 Days

Day: 16 Hours

Environment

Temp: -237 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 90,157,887 km

• M1: 53,706 km (0.087 R)
• M2: 191,186 km (0.111 R)
• M3: 535,261 km (0.092 R)
• M4: 995,723 km (0.061 R)
• M5: 1,175,989 km (0.083 R)
• M6: 1,335,610 km (0.113 R)
• M7: 1,833,920 km (0.069 R)
• M8: 2,125,187 km (0.072 R)
• M9: 2,685,880 km (0.036 R)
• M10: 3,717,657 km (0.072 R)
• M11: 4,430,939 km (0.114 R)
• M12: 4,819,894 km (0.101 R)
• M13: 4,954,532 km (0.076 R)
• M14: 5,161,127 km (0.05 R)
• M15: 6,281,764 km (0.073 R)
• M16: 6,984,126 km (0.109 R)
• M17: 7,332,091 km (0.07 R)
• M18: 9,351,213 km (0.086 R)
• M19: 9,508,141 km (0.064 R)
• M20: 11,059,771 km (0.072 R)
• M21: 12,079,878 km (0.118 R)
• M22: 12,391,341 km (0.103 R)
• M23: 12,708,339 km (0.046 R)
• M24: 13,490,886 km (0.032 R)
• M25: 13,961,969 km (0.109 R)
• M26: 16,180,805 km (0.107 R)
• M27: 20,764,783 km (0.11 R)
• M28: 21,848,320 km (0.096 R)
• M29: 24,029,607 km (0.099 R)
• M30: 27,835,975 km (0.082 R)
• M31: 36,745,725 km (0.103 R)
• M32: 38,327,573 km (0.101 R)
• M33: 41,063,718 km (0.084 R)
• M34: 43,344,337 km (0.089 R)
• M35: 43,927,320 km (0.043 R)
• M36: 51,337,052 km (0.075 R)
• M37: 57,061,565 km (0.064 R)
• M38: 59,179,422 km (0.066 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 928.2

Radius: 4.6

Gravity: 43.87 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 9.85 AU - 11.49 AU

Year: 22161 Days

Day: 23.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 90,157,887 km

• M1: 57,296 km (0.109 R)
• M2: 205,248 km (0.053 R)
• M3: 433,235 km (0.073 R)
• M4: 1,334,114 km (0.037 R)
• M5: 1,733,989 km (0.032 R)
• M6: 2,014,036 km (0.094 R)
• M7: 2,563,659 km (0.104 R)
• M8: 2,927,331 km (0.113 R)
• M9: 5,401,830 km (0.091 R)
• M10: 7,576,384 km (0.105 R)
• M11: 8,104,465 km (0.071 R)
• M12: 8,544,432 km (0.117 R)
• M13: 9,592,066 km (0.03 R)
• M14: 10,400,044 km (0.08 R)
• M15: 11,051,692 km (0.119 R)
• M16: 17,365,620 km (0.025 R)
• M17: 20,407,992 km (0.079 R)
• M18: 24,460,149 km (0.104 R)
• M19: 24,915,525 km (0.118 R)
• M20: 27,156,202 km (0.106 R)
• M21: 29,144,358 km (0.104 R)
• M22: 33,687,047 km (0.035 R)
• M23: 35,979,335 km (0.1 R)
• M24: 36,568,152 km (0.092 R)
• M25: 36,864,954 km (0.073 R)
• M26: 39,142,732 km (0.089 R)
• M27: 39,765,508 km (0.066 R)
• M28: 41,351,544 km (0.062 R)
• M29: 42,486,543 km (0.057 R)
• M30: 43,642,187 km (0.068 R)
• M31: 44,311,936 km (0.099 R)
• M32: 48,118,006 km (0.037 R)
• M33: 55,978,177 km (0.071 R)
• M34: 58,371,743 km (0.098 R)
• M35: 60,417,643 km (0.105 R)
• M36: 60,832,478 km (0.066 R)
• M37: 64,435,692 km (0.095 R)
• M38: 68,403,178 km (0.098 R)
• M39: 69,760,928 km (0.079 R)
• M40: 84,082,830 km (0.108 R)
• M41: 88,279,050 km (0.066 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 405 - 11,625 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit