🌌 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: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.49 AU - 0.65 AU

Year: 278 Days

Day: 46.1 Hours

Environment

Temp: -132 °C

Axial Tilt: 9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.5

Radius: 14.3

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.76 AU - 1 AU

Year: 533 Days

Day: 7.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,039,097 km

• M1: 177,872 km (0.108 R)
• M2: 729,738 km (0.101 R)
• M3: 1,543,401 km (0.072 R)
• M4: 2,006,407 km (0.077 R)
• M5: 2,464,027 km (0.093 R)
• M6: 2,936,008 km (0.097 R)
• M7: 3,406,643 km (0.032 R)
• M8: 3,955,218 km (0.071 R)
• M9: 4,747,638 km (0.058 R)
• M10: 6,040,014 km (0.117 R)
• M11: 6,669,671 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.5

Radius: 13.4

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.73 AU - 1.07 AU

Year: 551 Days

Day: 6.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 81,039,097 km

• M1: 166,652 km (0.089 R)
• M2: 677,978 km (0.1 R)
• M3: 1,169,107 km (0.114 R)
• M4: 1,751,641 km (0.055 R)
• M5: 2,991,209 km (0.114 R)
• M6: 3,435,216 km (0.104 R)
• M7: 3,873,986 km (0.06 R)
• M8: 4,336,842 km (0.091 R)
• M9: 5,071,218 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.5

Radius: 11

Gravity: 4.42 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.32 AU - 2 AU

Year: 1381 Days

Day: 7 Hours

Environment

Temp: -190 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,039,097 km

• M1: 136,732 km (0.106 R)
• M2: 504,444 km (0.109 R)
• M3: 860,487 km (0.09 R)
• M4: 1,499,419 km (0.084 R)
• M5: 1,842,298 km (0.071 R)
• M6: 2,249,653 km (0.079 R)
• M7: 2,641,300 km (0.099 R)
• M8: 3,234,755 km (0.094 R)
• M9: 3,882,214 km (0.07 R)
• M10: 6,103,144 km (0.053 R)
• M11: 7,394,623 km (0.1 R)
• M12: 7,970,126 km (0.102 R)
• M13: 8,407,251 km (0.114 R)
• M14: 8,860,383 km (0.025 R)
• M15: 10,350,228 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 471.1

Radius: 14.9

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.09 AU - 2.47 AU

Year: 2223 Days

Day: 5.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,039,097 km

• M1: 250,576 km (0.115 R)
• M2: 912,996 km (0.092 R)
• M3: 1,447,958 km (0.104 R)
• M4: 2,600,909 km (0.115 R)
• M5: 3,684,446 km (0.098 R)
• M6: 4,378,730 km (0.088 R)
• M7: 5,515,075 km (0.044 R)
• M8: 6,761,225 km (0.036 R)
• M9: 10,252,241 km (0.083 R)
• M10: 10,890,875 km (0.053 R)
• M11: 13,927,861 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.5

Radius: 8.3

Gravity: 13.1 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.99 AU - 3.73 AU

Year: 3977 Days

Day: 6.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 81,039,097 km

• M1: 107,262 km (0.051 R)
• M2: 380,727 km (0.081 R)
• M3: 698,472 km (0.105 R)
• M4: 1,057,358 km (0.105 R)
• M5: 1,327,532 km (0.028 R)
• M6: 1,861,446 km (0.106 R)
• M7: 2,433,808 km (0.113 R)
• M8: 2,787,906 km (0.087 R)
• M9: 3,234,456 km (0.086 R)
• M10: 4,084,321 km (0.113 R)
• M11: 4,414,484 km (0.099 R)
• M12: 4,737,166 km (0.12 R)
• M13: 4,995,970 km (0.075 R)
• M14: 5,570,576 km (0.087 R)
• M15: 7,048,902 km (0.118 R)
• M16: 7,352,735 km (0.117 R)
• M17: 8,243,142 km (0.052 R)
• M18: 10,365,786 km (0.055 R)
• M19: 11,763,479 km (0.097 R)
• M20: 13,746,997 km (0.044 R)
• M21: 14,545,251 km (0.106 R)
• M22: 16,824,674 km (0.109 R)
• M23: 24,301,576 km (0.103 R)
• M24: 25,784,390 km (0.12 R)
• M25: 26,184,415 km (0.071 R)
• M26: 27,243,717 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.5

Radius: 8.2

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 4.19 AU - 5.79 AU

Year: 7197 Days

Day: 11.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,039,097 km

• M1: 105,167 km (0.081 R)
• M2: 371,003 km (0.077 R)
• M3: 649,404 km (0.062 R)
• M4: 2,280,470 km (0.048 R)
• M5: 3,567,311 km (0.037 R)
• M6: 4,398,028 km (0.103 R)
• M7: 4,694,680 km (0.092 R)
• M8: 5,471,393 km (0.1 R)
• M9: 6,573,031 km (0.106 R)
• M10: 7,424,692 km (0.109 R)
• M11: 9,174,089 km (0.1 R)
• M12: 10,645,534 km (0.096 R)
• M13: 10,911,669 km (0.036 R)
• M14: 14,647,876 km (0.079 R)
• M15: 16,802,085 km (0.103 R)
• M16: 17,267,334 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 395.4

Radius: 5.1

Gravity: 15.2 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 7.87 AU - 11.23 AU

Year: 19055 Days

Day: 16.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 81,039,097 km

• M1: 63,429 km (0.057 R)
• M2: 258,056 km (0.112 R)
• M3: 510,877 km (0.119 R)
• M4: 707,000 km (0.088 R)
• M5: 1,044,044 km (0.081 R)
• M6: 1,511,986 km (0.104 R)
• M7: 2,147,627 km (0.12 R)
• M8: 2,645,938 km (0.03 R)
• M9: 3,167,436 km (0.06 R)
• M10: 3,985,287 km (0.085 R)
• M11: 5,283,498 km (0.074 R)
• M12: 6,968,269 km (0.038 R)
• M13: 8,433,580 km (0.116 R)
• M14: 9,499,914 km (0.108 R)
• M15: 12,648,949 km (0.064 R)
• M16: 12,971,631 km (0.109 R)
• M17: 15,386,141 km (0.065 R)
• M18: 16,737,309 km (0.08 R)
• M19: 17,204,802 km (0.118 R)
• M20: 17,680,972 km (0.108 R)
• M21: 20,634,932 km (0.097 R)
• M22: 25,198,415 km (0.048 R)
• M23: 27,930,521 km (0.097 R)
• M24: 37,036,244 km (0.07 R)
• M25: 39,586,888 km (0.09 R)
• M26: 41,539,439 km (0.112 R)
• M27: 42,972,736 km (0.11 R)
• M28: 46,089,608 km (0.101 R)
• M29: 52,602,650 km (0.036 R)
• M30: 53,941,252 km (0.089 R)
• M31: 57,738,944 km (0.038 R)
• M32: 58,804,829 km (0.091 R)
• M33: 60,427,965 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 219.4

Radius: 6.6

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 8.24 AU - 11.16 AU

Year: 19506 Days

Day: 22.8 Hours

Environment

Temp: -229 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 81,039,097 km

• M1: 87,365 km (0.061 R)
• M2: 421,716 km (0.078 R)
• M3: 980,464 km (0.112 R)
• M4: 1,679,834 km (0.118 R)
• M5: 1,919,041 km (0.03 R)
• M6: 2,527,157 km (0.07 R)
• M7: 2,976,549 km (0.073 R)
• M8: 5,735,283 km (0.098 R)
• M9: 6,169,865 km (0.052 R)
• M10: 10,159,191 km (0.034 R)
• M11: 10,474,095 km (0.044 R)
• M12: 10,958,642 km (0.086 R)
• M13: 12,682,010 km (0.066 R)
• M14: 14,055,468 km (0.063 R)
• M15: 16,512,164 km (0.036 R)
• M16: 20,545,173 km (0.086 R)
• M17: 20,964,346 km (0.069 R)
• M18: 22,788,094 km (0.119 R)
• M19: 27,348,585 km (0.104 R)
• M20: 29,948,746 km (0.106 R)
• M21: 30,379,438 km (0.026 R)
• M22: 32,143,945 km (0.116 R)
• M23: 34,798,409 km (0.052 R)
• M24: 35,634,512 km (0.113 R)
• M25: 37,845,569 km (0.028 R)
• M26: 42,134,091 km (0.117 R)
• M27: 42,947,006 km (0.111 R)
• M28: 46,735,422 km (0.06 R)
• M29: 51,046,085 km (0.038 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 566.7

Radius: 5.3

Gravity: 20.17 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 8.43 AU - 13.95 AU

Year: 24169 Days

Day: 15.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 81,039,097 km

• M1: 69,713 km (0.111 R)
• M2: 302,636 km (0.116 R)
• M3: 514,916 km (0.063 R)
• M4: 723,455 km (0.077 R)
• M5: 893,249 km (0.107 R)
• M6: 1,227,750 km (0.082 R)
• M7: 2,208,813 km (0.087 R)
• M8: 2,694,407 km (0.111 R)
• M9: 4,301,986 km (0.102 R)
• M10: 5,728,701 km (0.107 R)
• M11: 8,154,879 km (0.06 R)
• M12: 9,360,937 km (0.044 R)
• M13: 10,248,352 km (0.059 R)
• M14: 10,556,374 km (0.089 R)
• M15: 11,985,033 km (0.077 R)
• M16: 17,208,692 km (0.05 R)
• M17: 18,809,239 km (0.077 R)
• M18: 20,798,891 km (0.095 R)
• M19: 26,550,780 km (0.102 R)
• M20: 27,366,238 km (0.06 R)
• M21: 28,560,029 km (0.114 R)
• M22: 32,217,547 km (0.058 R)
• M23: 32,480,690 km (0.086 R)
• M24: 33,144,904 km (0.118 R)
• M25: 36,745,575 km (0.081 R)
• M26: 38,344,328 km (0.105 R)
• M27: 40,445,430 km (0.079 R)
• M28: 42,149,200 km (0.065 R)
• M29: 45,533,553 km (0.093 R)
• M30: 46,198,216 km (0.105 R)
• M31: 48,747,962 km (0.109 R)
• M32: 49,094,880 km (0.088 R)
• M33: 51,210,941 km (0.111 R)
• M34: 52,472,949 km (0.106 R)
• M35: 55,058,898 km (0.044 R)
• M36: 69,709,765 km (0.059 R)
• M37: 71,259,001 km (0.097 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 195 - 15,031 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit