🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.44 AU - 0.72 AU

Year: 157 Days

Day: 20.9 Hours

Environment

Temp: 219 °C

Axial Tilt: 37.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 39,133,907 km

• M1: 45,478 km (0.059 R)
• M2: 454,478 km (0.113 R)

Planet 2 - Terrestrial

Semi-Major Axis: 4.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 4.22 AU - 4.3 AU

Year: 3134 Days

Day: 31.9 Hours

Environment

Temp: -113 °C

Axial Tilt: 142.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.6

Radius: 14.9

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 4.17 AU - 6.77 AU

Year: 4560 Days

Day: 6.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,133,907 km

• M1: 185,501 km (0.112 R)
• M2: 649,255 km (0.091 R)
• M3: 1,140,385 km (0.047 R)
• M4: 1,628,074 km (0.12 R)
• M5: 2,258,629 km (0.106 R)
• M6: 2,815,881 km (0.103 R)
• M7: 3,316,435 km (0.052 R)
• M8: 4,105,863 km (0.08 R)
• M9: 6,401,442 km (0.092 R)
• M10: 9,303,492 km (0.07 R)
• M11: 10,069,283 km (0.107 R)
• M12: 10,670,966 km (0.08 R)
• M13: 12,439,213 km (0.096 R)
• M14: 13,274,417 km (0.069 R)
• M15: 14,246,056 km (0.086 R)
• M16: 14,800,316 km (0.111 R)
• M17: 16,385,754 km (0.117 R)
• M18: 20,713,172 km (0.099 R)

Planet 4 - Ice Giant

Semi-Major Axis: 14.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 274.3

Radius: 6.2

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 12.49 AU - 16.53 AU

Year: 19701 Days

Day: 21.6 Hours

Environment

Temp: -186 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 39,133,907 km

• M1: 77,641 km (0.054 R)
• M2: 330,761 km (0.114 R)
• M3: 583,282 km (0.056 R)
• M4: 1,333,815 km (0.048 R)
• M5: 3,266,021 km (0.101 R)
• M6: 3,468,427 km (0.106 R)
• M7: 3,760,442 km (0.092 R)
• M8: 5,062,542 km (0.116 R)
• M9: 5,474,085 km (0.108 R)
• M10: 6,132,765 km (0.107 R)
• M11: 6,560,465 km (0.115 R)
• M12: 8,472,775 km (0.107 R)
• M13: 8,856,493 km (0.082 R)
• M14: 9,555,863 km (0.051 R)
• M15: 10,077,511 km (0.11 R)
• M16: 10,783,763 km (0.032 R)
• M17: 11,007,711 km (0.116 R)
• M18: 15,094,126 km (0.099 R)
• M19: 16,530,266 km (0.055 R)
• M20: 17,434,435 km (0.064 R)
• M21: 22,545,297 km (0.114 R)
• M22: 23,656,210 km (0.058 R)
• M23: 27,726,918 km (0.078 R)
• M24: 28,359,268 km (0.097 R)
• M25: 29,982,256 km (0.091 R)
• M26: 30,648,415 km (0.109 R)
• M27: 32,241,183 km (0.104 R)
• M28: 35,714,397 km (0.05 R)
• M29: 37,991,127 km (0.107 R)
• M30: 38,249,932 km (0.045 R)
• M31: 41,859,878 km (0.11 R)
• M32: 47,916,348 km (0.089 R)

Planet 5 - Ice Giant

Semi-Major Axis: 16.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 242.8

Radius: 3.3

Gravity: 22.3 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 13.25 AU - 19.07 AU

Year: 23156 Days

Day: 16.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 39,133,907 km

• M1: 42,486 km (0.097 R)
• M2: 197,020 km (0.076 R)
• M3: 410,646 km (0.067 R)
• M4: 574,905 km (0.089 R)
• M5: 725,849 km (0.106 R)
• M6: 1,071,869 km (0.081 R)
• M7: 1,315,863 km (0.099 R)
• M8: 1,488,050 km (0.105 R)
• M9: 2,153,910 km (0.117 R)
• M10: 3,169,829 km (0.094 R)
• M11: 4,758,409 km (0.064 R)
• M12: 5,234,280 km (0.05 R)
• M13: 5,853,914 km (0.11 R)
• M14: 6,161,787 km (0.112 R)
• M15: 6,685,080 km (0.082 R)
• M16: 7,457,603 km (0.061 R)
• M17: 7,591,942 km (0.105 R)
• M18: 7,819,331 km (0.053 R)
• M19: 9,177,680 km (0.091 R)
• M20: 9,435,736 km (0.097 R)
• M21: 10,742,324 km (0.069 R)
• M22: 17,726,600 km (0.105 R)
• M23: 19,447,574 km (0.104 R)
• M24: 21,456,673 km (0.116 R)
• M25: 25,272,615 km (0.09 R)
• M26: 25,677,427 km (0.092 R)
• M27: 26,292,574 km (0.09 R)
• M28: 26,812,875 km (0.08 R)
• M29: 27,445,973 km (0.106 R)
• M30: 30,877,150 km (0.119 R)
• M31: 32,278,583 km (0.12 R)
• M32: 34,832,069 km (0.086 R)
• M33: 41,167,389 km (0.063 R)
• M34: 48,073,874 km (0.051 R)
• M35: 50,271,168 km (0.094 R)
• M36: 55,713,389 km (0.094 R)
• M37: 56,226,659 km (0.077 R)

Planet 6 - Ice Giant

Semi-Major Axis: 17.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 85.6

Radius: 7.7

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 17.29 AU - 17.53 AU

Year: 25894 Days

Day: 17.3 Hours

Environment

Temp: -199 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 39,133,907 km

• M1: 95,743 km (0.111 R)
• M2: 451,187 km (0.028 R)
• M3: 2,199,537 km (0.105 R)
• M4: 2,570,091 km (0.068 R)
• M5: 3,249,266 km (0.078 R)
• M6: 4,232,273 km (0.114 R)
• M7: 4,989,687 km (0.062 R)
• M8: 6,472,801 km (0.107 R)
• M9: 8,014,706 km (0.093 R)
• M10: 9,356,748 km (0.082 R)
• M11: 10,738,883 km (0.081 R)
• M12: 11,861,166 km (0.114 R)
• M13: 13,237,168 km (0.072 R)
• M14: 14,716,541 km (0.089 R)
• M15: 16,786,527 km (0.047 R)
• M16: 17,854,655 km (0.036 R)
• M17: 20,681,906 km (0.106 R)
• M18: 21,908,608 km (0.068 R)
• M19: 36,600,615 km (0.095 R)
• M20: 38,149,551 km (0.112 R)
• M21: 39,247,151 km (0.103 R)
• M22: 40,743,279 km (0.106 R)
• M23: 42,276,957 km (0.089 R)
• M24: 44,515,090 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 22.3

Radius: 5.3

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 15.28 AU - 19.8 AU

Year: 26184 Days

Day: 22.8 Hours

Environment

Temp: -200 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,133,907 km

• M1: 67,768 km (0.101 R)
• M2: 249,529 km (0.101 R)
• M3: 897,138 km (0.117 R)
• M4: 1,127,519 km (0.105 R)
• M5: 2,622,301 km (0.12 R)
• M6: 4,761,999 km (0.064 R)
• M7: 8,790,969 km (0.067 R)
• M8: 12,109,648 km (0.081 R)
• M9: 17,260,154 km (0.118 R)
• M10: 18,711,552 km (0.095 R)
• M11: 20,655,128 km (0.108 R)
• M12: 21,999,115 km (0.049 R)
• M13: 23,626,740 km (0.057 R)
• M14: 27,369,828 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 50.9

Radius: 6.4

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 17.43 AU - 18.43 AU

Year: 27062 Days

Day: 24.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,133,907 km

• M1: 82,129 km (0.092 R)
• M2: 339,138 km (0.11 R)
• M3: 774,019 km (0.113 R)
• M4: 1,134,101 km (0.089 R)
• M5: 3,474,859 km (0.085 R)
• M6: 3,856,184 km (0.115 R)
• M7: 4,535,059 km (0.097 R)
• M8: 4,787,730 km (0.071 R)
• M9: 12,197,762 km (0.059 R)
• M10: 13,246,891 km (0.043 R)
• M11: 15,650,032 km (0.086 R)
• M12: 16,034,049 km (0.092 R)
• M13: 20,911,688 km (0.111 R)
• M14: 26,603,438 km (0.091 R)
• M15: 34,202,262 km (0.028 R)
• M16: 36,724,781 km (0.05 R)

Kuiper Belt

Range: 30.8 - 56.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 548 - 17,169 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit