🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.67 AU - 0.83 AU

Year: 290 Days

Day: 13.1 Hours

Environment

Temp: -43 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.69 AU - 0.91 AU

Year: 319 Days

Day: 44.1 Hours

Environment

Temp: -50 °C

Axial Tilt: 14.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.6

Radius: 1.47

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.94 AU - 1.32 AU

Year: 536 Days

Day: 31.9 Hours

Environment

Temp: -80 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.42 AU - 1.74 AU

Year: 886 Days

Day: 39 Hours

Environment

Temp: -109 °C

Axial Tilt: 6.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 104,542,420 km

• M1: 618,438 km (0.086 R)
• M2: 1,301,202 km (0.103 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.3 AU - 1.94 AU

Year: 920 Days

Day: 26 Hours

Environment

Temp: -106 °C

Axial Tilt: 3.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.3

Radius: 13.6

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 4.51 AU - 5.85 AU

Year: 5261 Days

Day: 5.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 104,542,420 km

• M1: 169,494 km (0.072 R)
• M2: 800,049 km (0.101 R)
• M3: 1,270,834 km (0.091 R)
• M4: 2,343,750 km (0.03 R)
• M5: 4,903,220 km (0.06 R)
• M6: 6,861,306 km (0.12 R)
• M7: 8,715,422 km (0.052 R)
• M8: 10,535,430 km (0.068 R)
• M9: 13,697,331 km (0.074 R)
• M10: 14,806,599 km (0.111 R)
• M11: 16,493,913 km (0.056 R)
• M12: 17,143,617 km (0.086 R)
• M13: 17,626,968 km (0.102 R)
• M14: 18,057,211 km (0.115 R)
• M15: 19,131,473 km (0.048 R)
• M16: 19,782,972 km (0.095 R)
• M17: 20,652,136 km (0.063 R)
• M18: 21,268,628 km (0.091 R)
• M19: 23,118,855 km (0.104 R)
• M20: 24,008,214 km (0.08 R)
• M21: 25,151,591 km (0.097 R)
• M22: 25,697,473 km (0.048 R)
• M23: 26,411,055 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.1

Radius: 11.8

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 5.32 AU - 7.02 AU

Year: 6839 Days

Day: 5.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 104,542,420 km

• M1: 146,905 km (0.116 R)
• M2: 565,181 km (0.118 R)
• M3: 1,023,997 km (0.1 R)
• M4: 1,433,447 km (0.07 R)
• M5: 2,094,819 km (0.098 R)
• M6: 2,636,214 km (0.081 R)
• M7: 4,052,906 km (0.105 R)
• M8: 4,475,819 km (0.073 R)
• M9: 4,928,203 km (0.116 R)
• M10: 6,542,663 km (0.096 R)
• M11: 8,233,568 km (0.062 R)
• M12: 9,542,549 km (0.073 R)
• M13: 9,914,000 km (0.07 R)
• M14: 11,086,848 km (0.106 R)
• M15: 14,973,550 km (0.09 R)
• M16: 15,476,199 km (0.077 R)
• M17: 15,860,366 km (0.112 R)
• M18: 17,187,748 km (0.095 R)
• M19: 25,393,640 km (0.117 R)
• M20: 26,199,374 km (0.071 R)
• M21: 29,105,463 km (0.07 R)
• M22: 29,888,907 km (0.073 R)
• M23: 38,867,172 km (0.084 R)
• M24: 39,697,740 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.1

Radius: 11.3

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 7.24 AU - 11.2 AU

Year: 12492 Days

Day: 12.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 104,542,420 km

• M1: 143,764 km (0.084 R)
• M2: 576,849 km (0.117 R)
• M3: 1,625,830 km (0.055 R)
• M4: 3,388,841 km (0.103 R)
• M5: 4,997,317 km (0.081 R)
• M6: 5,401,830 km (0.098 R)
• M7: 9,604,333 km (0.07 R)
• M8: 10,232,046 km (0.114 R)
• M9: 13,566,881 km (0.099 R)
• M10: 14,764,263 km (0.045 R)
• M11: 16,468,781 km (0.087 R)
• M12: 17,172,938 km (0.06 R)
• M13: 19,406,733 km (0.1 R)
• M14: 21,073,702 km (0.079 R)
• M15: 21,827,526 km (0.113 R)
• M16: 25,359,681 km (0.081 R)
• M17: 27,084,545 km (0.089 R)
• M18: 29,070,606 km (0.112 R)
• M19: 30,288,931 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 606.5

Radius: 3.3

Gravity: 55.69 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 13.99 AU - 15.13 AU

Year: 24791 Days

Day: 21.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 104,542,420 km

• M1: 51,611 km (0.111 R)
• M2: 172,636 km (0.101 R)
• M3: 440,566 km (0.065 R)
• M4: 557,551 km (0.112 R)
• M5: 938,278 km (0.109 R)
• M6: 1,079,797 km (0.057 R)
• M7: 1,454,839 km (0.071 R)
• M8: 1,574,069 km (0.101 R)
• M9: 1,991,746 km (0.108 R)
• M10: 3,623,111 km (0.049 R)
• M11: 3,907,496 km (0.088 R)
• M12: 4,206,543 km (0.101 R)
• M13: 4,775,463 km (0.063 R)
• M14: 5,195,085 km (0.033 R)
• M15: 6,107,632 km (0.107 R)
• M16: 7,926,593 km (0.114 R)
• M17: 8,031,311 km (0.114 R)
• M18: 8,190,035 km (0.077 R)
• M19: 8,734,272 km (0.06 R)
• M20: 10,829,390 km (0.078 R)
• M21: 11,285,215 km (0.037 R)
• M22: 13,757,469 km (0.075 R)
• M23: 19,547,206 km (0.1 R)
• M24: 21,313,508 km (0.112 R)
• M25: 21,617,790 km (0.081 R)
• M26: 22,653,306 km (0.095 R)
• M27: 24,934,674 km (0.074 R)
• M28: 30,972,743 km (0.103 R)
• M29: 31,756,935 km (0.118 R)
• M30: 36,596,576 km (0.115 R)
• M31: 41,273,903 km (0.099 R)
• M32: 46,503,994 km (0.092 R)
• M33: 46,844,778 km (0.117 R)
• M34: 55,723,711 km (0.104 R)
• M35: 63,543,341 km (0.093 R)
• M36: 66,735,610 km (0.093 R)
• M37: 71,381,970 km (0.099 R)
• M38: 71,608,462 km (0.092 R)
• M39: 73,207,214 km (0.119 R)
• M40: 74,131,430 km (0.078 R)
• M41: 78,627,743 km (0.093 R)
• M42: 80,574,012 km (0.116 R)

Planet 10 - Ice Giant

Semi-Major Axis: 15.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 947.4

Radius: 4.2

Gravity: 53.71 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 12.21 AU - 18.91 AU

Year: 27388 Days

Day: 20.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 104,542,420 km

• M1: 52,359 km (0.074 R)
• M2: 411,993 km (0.064 R)
• M3: 602,730 km (0.106 R)
• M4: 913,445 km (0.095 R)
• M5: 1,195,437 km (0.091 R)
• M6: 1,443,171 km (0.116 R)
• M7: 1,910,066 km (0.045 R)
• M8: 2,272,990 km (0.108 R)
• M9: 3,476,206 km (0.109 R)
• M10: 4,122,917 km (0.111 R)
• M11: 4,967,996 km (0.04 R)
• M12: 6,394,561 km (0.102 R)
• M13: 6,942,239 km (0.077 R)
• M14: 8,187,192 km (0.112 R)
• M15: 8,953,133 km (0.05 R)
• M16: 9,701,422 km (0.058 R)
• M17: 14,744,366 km (0.073 R)
• M18: 20,651,088 km (0.038 R)
• M19: 22,062,544 km (0.059 R)
• M20: 24,476,306 km (0.111 R)
• M21: 25,931,594 km (0.072 R)
• M22: 27,060,310 km (0.041 R)
• M23: 31,903,092 km (0.12 R)
• M24: 40,533,842 km (0.09 R)
• M25: 54,155,327 km (0.055 R)
• M26: 60,014,627 km (0.115 R)
• M27: 63,996,024 km (0.062 R)
• M28: 90,206,469 km (0.072 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 470 - 16,427 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit