🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.48

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.47 AU - 0.65 AU

Year: 271 Days

Day: 43.6 Hours

Environment

Temp: -118 °C

Axial Tilt: 17.9 °

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: 436.1

Radius: 12.7

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.93 AU - 1.07 AU

Year: 646 Days

Day: 6.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 71,795,719 km

• M1: 162,463 km (0.113 R)
• M2: 673,041 km (0.113 R)
• M3: 1,461,571 km (0.065 R)
• M4: 1,986,809 km (0.11 R)
• M5: 3,267,965 km (0.105 R)
• M6: 3,769,418 km (0.029 R)
• M7: 4,409,397 km (0.113 R)
• M8: 4,960,067 km (0.096 R)
• M9: 5,607,975 km (0.098 R)
• M10: 6,425,079 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.2

Radius: 10.9

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.82 AU - 1.28 AU

Year: 695 Days

Day: 13.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,795,719 km

• M1: 135,536 km (0.114 R)
• M2: 490,980 km (0.069 R)
• M3: 939,325 km (0.112 R)
• M4: 1,536,520 km (0.03 R)
• M5: 2,003,863 km (0.112 R)
• M6: 2,353,324 km (0.089 R)
• M7: 4,678,973 km (0.068 R)
• M8: 5,283,647 km (0.11 R)
• M9: 5,746,802 km (0.056 R)
• M10: 6,628,233 km (0.102 R)
• M11: 6,991,905 km (0.109 R)
• M12: 7,437,109 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.6

Radius: 11.2

Gravity: 1.99 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.38 AU - 2 AU

Year: 1419 Days

Day: 10.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,795,719 km

• M1: 139,276 km (0.082 R)
• M2: 546,182 km (0.074 R)
• M3: 1,067,530 km (0.114 R)
• M4: 1,497,175 km (0.038 R)
• M5: 1,947,615 km (0.058 R)
• M6: 2,543,912 km (0.064 R)
• M7: 3,339,772 km (0.106 R)
• M8: 3,993,665 km (0.089 R)
• M9: 5,050,275 km (0.112 R)
• M10: 5,812,476 km (0.11 R)
• M11: 8,772,718 km (0.052 R)
• M12: 9,312,168 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 796.4

Radius: 11.3

Gravity: 6.24 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.94 AU - 2.2 AU

Year: 1923 Days

Day: 9.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 134.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,795,719 km

• M1: 140,622 km (0.04 R)
• M2: 546,631 km (0.117 R)
• M3: 1,288,187 km (0.056 R)
• M4: 1,729,800 km (0.104 R)
• M5: 2,087,489 km (0.116 R)
• M6: 2,690,368 km (0.05 R)
• M7: 3,080,370 km (0.069 R)
• M8: 4,051,709 km (0.104 R)
• M9: 5,469,149 km (0.106 R)
• M10: 6,075,020 km (0.057 R)
• M11: 6,538,624 km (0.116 R)
• M12: 7,507,868 km (0.064 R)
• M13: 8,288,021 km (0.068 R)
• M14: 10,294,428 km (0.116 R)
• M15: 10,842,854 km (0.101 R)
• M16: 11,333,834 km (0.098 R)
• M17: 13,361,932 km (0.116 R)
• M18: 13,882,682 km (0.058 R)
• M19: 14,326,838 km (0.083 R)
• M20: 14,734,792 km (0.12 R)
• M21: 15,956,857 km (0.03 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 766.2

Radius: 13.2

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.46 AU - 3.5 AU

Year: 3322 Days

Day: 14.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 71,795,719 km

• M1: 165,006 km (0.066 R)
• M2: 585,526 km (0.105 R)
• M3: 1,015,919 km (0.082 R)
• M4: 1,570,030 km (0.077 R)
• M5: 2,969,518 km (0.059 R)
• M6: 4,193,827 km (0.109 R)
• M7: 4,646,211 km (0.051 R)
• M8: 5,676,940 km (0.066 R)
• M9: 6,464,722 km (0.102 R)
• M10: 8,051,806 km (0.068 R)
• M11: 8,468,586 km (0.101 R)
• M12: 8,900,026 km (0.101 R)
• M13: 10,043,103 km (0.078 R)
• M14: 10,650,172 km (0.106 R)
• M15: 13,183,761 km (0.054 R)
• M16: 13,961,820 km (0.026 R)
• M17: 14,977,140 km (0.072 R)
• M18: 16,259,942 km (0.095 R)
• M19: 18,558,813 km (0.082 R)
• M20: 19,350,634 km (0.114 R)
• M21: 20,228,175 km (0.116 R)
• M22: 21,197,869 km (0.11 R)
• M23: 22,334,065 km (0.048 R)
• M24: 22,882,490 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.1

Radius: 11

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.59 AU - 3.77 AU

Year: 3661 Days

Day: 13.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,795,719 km

• M1: 136,732 km (0.103 R)
• M2: 491,579 km (0.093 R)
• M3: 911,500 km (0.102 R)
• M4: 1,671,457 km (0.105 R)
• M5: 2,877,665 km (0.053 R)
• M6: 3,370,290 km (0.082 R)
• M7: 3,761,638 km (0.099 R)
• M8: 6,389,325 km (0.111 R)
• M9: 7,507,719 km (0.082 R)
• M10: 9,387,266 km (0.069 R)
• M11: 10,015,278 km (0.041 R)
• M12: 11,520,382 km (0.104 R)
• M13: 13,723,660 km (0.034 R)
• M14: 14,532,984 km (0.098 R)
• M15: 14,974,148 km (0.113 R)
• M16: 17,206,747 km (0.086 R)
• M17: 17,756,070 km (0.039 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.9

Radius: 9

Gravity: 11.59 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 3.72 AU - 6.04 AU

Year: 6961 Days

Day: 14.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 71,795,719 km

• M1: 180,415 km (0.098 R)
• M2: 593,305 km (0.094 R)
• M3: 888,013 km (0.054 R)
• M4: 1,204,562 km (0.096 R)
• M5: 2,328,940 km (0.049 R)
• M6: 2,741,381 km (0.092 R)
• M7: 3,521,384 km (0.105 R)
• M8: 4,695,578 km (0.11 R)
• M9: 6,078,311 km (0.098 R)
• M10: 6,642,893 km (0.044 R)
• M11: 7,397,166 km (0.114 R)
• M12: 9,672,101 km (0.041 R)
• M13: 10,441,632 km (0.116 R)
• M14: 10,790,943 km (0.039 R)
• M15: 11,303,466 km (0.061 R)
• M16: 12,321,928 km (0.065 R)
• M17: 12,938,720 km (0.097 R)
• M18: 15,874,428 km (0.067 R)
• M19: 16,403,407 km (0.061 R)
• M20: 17,848,223 km (0.087 R)
• M21: 20,133,330 km (0.059 R)
• M22: 21,950,047 km (0.105 R)
• M23: 23,701,838 km (0.117 R)
• M24: 24,831,900 km (0.061 R)
• M25: 25,454,975 km (0.104 R)
• M26: 26,271,480 km (0.101 R)
• M27: 30,112,705 km (0.11 R)
• M28: 30,617,747 km (0.032 R)
• M29: 40,213,404 km (0.025 R)
• M30: 40,580,218 km (0.115 R)
• M31: 41,444,744 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 89.6

Radius: 3

Gravity: 9.96 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 5.92 AU - 7.18 AU

Year: 10824 Days

Day: 24.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,795,719 km

• M1: 66,122 km (0.065 R)
• M2: 1,202,617 km (0.088 R)
• M3: 1,431,652 km (0.054 R)
• M4: 2,386,834 km (0.081 R)
• M5: 2,530,298 km (0.078 R)
• M6: 2,799,724 km (0.1 R)
• M7: 2,959,345 km (0.104 R)
• M8: 3,981,398 km (0.099 R)
• M9: 4,252,319 km (0.073 R)
• M10: 4,805,682 km (0.034 R)
• M11: 6,171,211 km (0.1 R)
• M12: 6,472,352 km (0.069 R)
• M13: 11,821,822 km (0.051 R)
• M14: 12,617,533 km (0.075 R)
• M15: 16,215,212 km (0.08 R)
• M16: 17,373,100 km (0.038 R)
• M17: 17,551,421 km (0.082 R)
• M18: 19,465,974 km (0.065 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 976.2

Radius: 7.7

Gravity: 16.46 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 6.22 AU - 10.32 AU

Year: 15356 Days

Day: 22.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 71,795,719 km

• M1: 95,743 km (0.047 R)
• M2: 394,938 km (0.045 R)
• M3: 695,630 km (0.114 R)
• M4: 1,298,659 km (0.076 R)
• M5: 1,826,440 km (0.07 R)
• M6: 2,315,476 km (0.095 R)
• M7: 3,039,978 km (0.115 R)
• M8: 4,481,204 km (0.065 R)
• M9: 5,756,676 km (0.092 R)
• M10: 6,038,368 km (0.053 R)
• M11: 7,351,389 km (0.104 R)
• M12: 7,828,606 km (0.075 R)
• M13: 8,531,118 km (0.092 R)
• M14: 9,058,301 km (0.049 R)
• M15: 14,450,257 km (0.05 R)
• M16: 17,019,002 km (0.083 R)
• M17: 20,060,326 km (0.085 R)
• M18: 28,681,652 km (0.062 R)
• M19: 34,647,316 km (0.103 R)
• M20: 38,483,005 km (0.089 R)
• M21: 39,773,586 km (0.076 R)
• M22: 41,838,186 km (0.086 R)
• M23: 48,293,933 km (0.099 R)
• M24: 49,794,848 km (0.109 R)
• M25: 51,498,768 km (0.117 R)
• M26: 52,889,430 km (0.087 R)
• M27: 54,126,754 km (0.118 R)
• M28: 54,483,844 km (0.114 R)
• M29: 55,927,613 km (0.04 R)
• M30: 57,582,315 km (0.103 R)
• M31: 60,220,623 km (0.098 R)
• M32: 60,796,275 km (0.115 R)
• M33: 70,512,807 km (0.103 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: 420 - 10,519 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit