🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.72

Radius: 1.24

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.42 AU - 0.66 AU

Year: 140 Days

Day: 26.6 Hours

Environment

Temp: 202 °C

Axial Tilt: 123.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.64 AU - 0.98 AU

Year: 257 Days

Day: 42.4 Hours

Environment

Temp: 139 °C

Axial Tilt: 23.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 83,875,361 km

• M1: 14,960 km (0.12 R)
• M2: 130,599 km (0.066 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.85

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.03 AU - 1.59 AU

Year: 529 Days

Day: 32.5 Hours

Environment

Temp: 22 °C

Axial Tilt: 39.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 83,875,361 km

• M1: 84,224 km (0.029 R)
• M2: 296,204 km (0.08 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.58 AU - 1.7 AU

Year: 742 Days

Day: 22.7 Hours

Environment

Temp: -43 °C

Axial Tilt: 14.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,875,361 km

• M1: 870,360 km (0.04 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.09 AU - 2.51 AU

Year: 1232 Days

Day: 20.4 Hours

Environment

Temp: -73 °C

Axial Tilt: 6.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 8.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.2

Radius: 11.1

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 8.16 AU - 8.16 AU

Year: 8231 Days

Day: 8.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 83,875,361 km

• M1: 138,079 km (0.111 R)
• M2: 714,479 km (0.069 R)
• M3: 1,146,817 km (0.061 R)
• M4: 1,857,108 km (0.105 R)
• M5: 2,510,551 km (0.085 R)
• M6: 3,784,527 km (0.109 R)
• M7: 4,275,208 km (0.061 R)
• M8: 4,721,159 km (0.096 R)
• M9: 5,416,490 km (0.098 R)
• M10: 6,144,433 km (0.07 R)
• M11: 7,357,074 km (0.109 R)
• M12: 8,250,023 km (0.086 R)
• M13: 9,033,168 km (0.108 R)
• M14: 10,447,616 km (0.057 R)
• M15: 13,592,463 km (0.061 R)
• M16: 15,188,223 km (0.114 R)
• M17: 15,703,438 km (0.104 R)
• M18: 16,430,783 km (0.08 R)
• M19: 17,180,567 km (0.069 R)
• M20: 20,100,568 km (0.076 R)
• M21: 20,487,428 km (0.099 R)
• M22: 20,958,213 km (0.105 R)
• M23: 21,921,324 km (0.107 R)
• M24: 22,746,506 km (0.102 R)
• M25: 26,071,319 km (0.077 R)
• M26: 28,137,564 km (0.116 R)
• M27: 34,324,184 km (0.119 R)
• M28: 40,126,637 km (0.083 R)
• M29: 40,987,872 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 42.6

Radius: 14.2

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 10.27 AU - 13.51 AU

Year: 14477 Days

Day: 13.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 83,875,361 km

• M1: 237,262 km (0.06 R)
• M2: 828,024 km (0.103 R)
• M3: 1,448,855 km (0.076 R)
• M4: 2,203,876 km (0.054 R)
• M5: 3,120,612 km (0.076 R)
• M6: 3,748,175 km (0.109 R)
• M7: 4,234,517 km (0.114 R)
• M8: 4,811,217 km (0.086 R)
• M9: 6,066,792 km (0.115 R)
• M10: 7,596,430 km (0.11 R)
• M11: 9,370,511 km (0.107 R)
• M12: 14,222,419 km (0.089 R)
• M13: 15,097,866 km (0.074 R)
• M14: 16,283,878 km (0.096 R)
• M15: 23,515,289 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 116.6

Radius: 5.9

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 10.82 AU - 16.16 AU

Year: 17495 Days

Day: 21.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 83,875,361 km

• M1: 73,453 km (0.061 R)
• M2: 262,544 km (0.052 R)
• M3: 848,070 km (0.087 R)
• M4: 3,264,076 km (0.064 R)
• M5: 4,438,120 km (0.107 R)
• M6: 5,060,746 km (0.112 R)
• M7: 6,478,186 km (0.074 R)
• M8: 8,984,399 km (0.106 R)
• M9: 12,124,608 km (0.093 R)
• M10: 13,164,762 km (0.073 R)
• M11: 13,620,138 km (0.069 R)
• M12: 14,804,355 km (0.075 R)
• M13: 16,839,335 km (0.036 R)
• M14: 18,695,545 km (0.119 R)
• M15: 20,230,270 km (0.076 R)
• M16: 21,144,163 km (0.095 R)
• M17: 24,644,753 km (0.107 R)
• M18: 32,767,469 km (0.084 R)
• M19: 37,995,166 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 597.1

Radius: 6.1

Gravity: 16.05 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 13.71 AU - 16.79 AU

Year: 21028 Days

Day: 16.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 5.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 83,875,361 km

• M1: 75,846 km (0.102 R)
• M2: 658,679 km (0.041 R)
• M3: 1,001,259 km (0.072 R)
• M4: 1,688,960 km (0.11 R)
• M5: 2,749,459 km (0.097 R)
• M6: 2,975,053 km (0.094 R)
• M7: 4,195,622 km (0.057 R)
• M8: 6,341,454 km (0.072 R)
• M9: 7,147,936 km (0.093 R)
• M10: 8,020,989 km (0.114 R)
• M11: 10,390,769 km (0.106 R)
• M12: 11,832,444 km (0.119 R)
• M13: 12,567,119 km (0.034 R)
• M14: 13,050,021 km (0.081 R)
• M15: 18,849,033 km (0.073 R)
• M16: 22,656,747 km (0.03 R)
• M17: 23,371,825 km (0.062 R)
• M18: 26,049,178 km (0.107 R)
• M19: 26,271,780 km (0.1 R)
• M20: 28,924,150 km (0.07 R)
• M21: 30,499,415 km (0.095 R)
• M22: 33,688,244 km (0.104 R)
• M23: 33,952,583 km (0.071 R)
• M24: 36,117,264 km (0.116 R)
• M25: 40,569,746 km (0.1 R)
• M26: 46,346,318 km (0.095 R)
• M27: 47,332,018 km (0.049 R)
• M28: 49,005,570 km (0.1 R)
• M29: 51,764,902 km (0.069 R)
• M30: 55,357,196 km (0.096 R)
• M31: 56,280,664 km (0.049 R)
• M32: 64,040,604 km (0.112 R)
• M33: 70,523,129 km (0.082 R)

Planet 10 - Ice Giant

Semi-Major Axis: 16.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 656.5

Radius: 8

Gravity: 10.26 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 14.48 AU - 18.5 AU

Year: 23644 Days

Day: 24.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 83,875,361 km

• M1: 99,483 km (0.028 R)
• M2: 349,610 km (0.069 R)
• M3: 749,785 km (0.089 R)
• M4: 1,105,528 km (0.092 R)
• M5: 2,185,326 km (0.079 R)
• M6: 3,421,303 km (0.113 R)
• M7: 4,482,102 km (0.078 R)
• M8: 5,068,974 km (0.049 R)
• M9: 8,631,797 km (0.066 R)
• M10: 9,775,772 km (0.09 R)
• M11: 10,571,483 km (0.113 R)
• M12: 11,947,185 km (0.044 R)
• M13: 12,571,756 km (0.118 R)
• M14: 12,856,291 km (0.08 R)
• M15: 15,049,546 km (0.055 R)
• M16: 17,657,635 km (0.085 R)
• M17: 20,454,517 km (0.025 R)
• M18: 27,263,165 km (0.118 R)
• M19: 30,083,833 km (0.058 R)
• M20: 33,772,916 km (0.089 R)
• M21: 57,190,368 km (0.082 R)
• M22: 58,366,208 km (0.117 R)
• M23: 59,758,066 km (0.076 R)
• M24: 60,361,394 km (0.092 R)
• M25: 75,149,443 km (0.078 R)

Kuiper Belt

Range: 31.1 - 46.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 377 - 11,419 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit