🌌 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 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20.3

Radius: 14.2

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 0.5 AU - 0.62 AU

Year: 295 Days

Day: 11.3 Hours

Environment

Temp: -138 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 35,205,016 km

• M1: 176,525 km (0.11 R)
• M2: 861,833 km (0.083 R)
• M3: 1,349,074 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.7

Radius: 13.9

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.9 AU - 0.92 AU

Year: 610 Days

Day: 10.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,205,016 km

• M1: 172,935 km (0.115 R)
• M2: 632,799 km (0.064 R)
• M3: 1,080,246 km (0.118 R)
• M4: 1,541,157 km (0.111 R)
• M5: 2,118,755 km (0.091 R)
• M6: 2,619,758 km (0.087 R)
• M7: 3,072,740 km (0.11 R)
• M8: 3,527,967 km (0.092 R)
• M9: 4,097,785 km (0.088 R)
• M10: 4,591,458 km (0.058 R)
• M11: 5,223,359 km (0.057 R)
• M12: 6,260,970 km (0.044 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 902.8

Radius: 13.5

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.94 AU - 1.1 AU

Year: 724 Days

Day: 11.4 Hours

Environment

Temp: -180 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,205,016 km

• M1: 167,849 km (0.116 R)
• M2: 663,616 km (0.118 R)
• M3: 1,509,742 km (0.117 R)
• M4: 1,971,401 km (0.113 R)
• M5: 2,440,988 km (0.093 R)
• M6: 2,973,407 km (0.094 R)
• M7: 3,829,107 km (0.065 R)
• M8: 4,259,351 km (0.114 R)
• M9: 4,860,584 km (0.118 R)
• M10: 5,575,213 km (0.098 R)
• M11: 6,151,315 km (0.098 R)
• M12: 6,614,619 km (0.114 R)
• M13: 7,611,689 km (0.107 R)
• M14: 8,146,651 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.3

Radius: 14.2

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.31 AU - 1.33 AU

Year: 1066 Days

Day: 12.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,205,016 km

• M1: 176,825 km (0.097 R)
• M2: 633,098 km (0.059 R)
• M3: 1,124,677 km (0.072 R)
• M4: 1,752,988 km (0.087 R)
• M5: 2,976,549 km (0.119 R)
• M6: 3,508,070 km (0.091 R)
• M7: 4,355,991 km (0.115 R)
• M8: 5,045,338 km (0.098 R)
• M9: 5,558,010 km (0.059 R)
• M10: 6,370,476 km (0.084 R)
• M11: 7,236,199 km (0.066 R)
• M12: 8,946,102 km (0.078 R)
• M13: 9,850,571 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.4

Radius: 14.6

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.56 AU - 1.62 AU

Year: 1409 Days

Day: 13.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,205,016 km

• M1: 181,612 km (0.03 R)
• M2: 645,066 km (0.081 R)
• M3: 1,148,762 km (0.071 R)
• M4: 1,619,247 km (0.103 R)
• M5: 2,232,599 km (0.052 R)
• M6: 2,742,279 km (0.054 R)
• M7: 3,716,460 km (0.09 R)
• M8: 4,528,028 km (0.105 R)
• M9: 6,325,447 km (0.112 R)
• M10: 7,213,011 km (0.093 R)
• M11: 8,560,589 km (0.073 R)
• M12: 9,150,154 km (0.12 R)
• M13: 9,736,727 km (0.063 R)
• M14: 10,348,433 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.6

Radius: 9.1

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.54 AU - 2.68 AU

Year: 2964 Days

Day: 14.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 35,205,016 km

• M1: 114,143 km (0.108 R)
• M2: 840,142 km (0.119 R)
• M3: 1,362,388 km (0.114 R)
• M4: 1,786,498 km (0.078 R)
• M5: 2,335,223 km (0.108 R)
• M6: 2,656,559 km (0.079 R)
• M7: 3,194,663 km (0.079 R)
• M8: 3,523,927 km (0.088 R)
• M9: 3,821,627 km (0.077 R)
• M10: 4,231,974 km (0.118 R)
• M11: 6,002,016 km (0.068 R)
• M12: 7,202,689 km (0.099 R)
• M13: 7,713,565 km (0.084 R)
• M14: 8,401,416 km (0.103 R)
• M15: 8,713,029 km (0.06 R)
• M16: 9,326,230 km (0.099 R)
• M17: 10,141,688 km (0.062 R)
• M18: 11,077,872 km (0.028 R)
• M19: 11,682,098 km (0.086 R)
• M20: 12,188,935 km (0.107 R)
• M21: 12,508,177 km (0.036 R)
• M22: 12,873,794 km (0.099 R)
• M23: 15,404,691 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659

Radius: 12.5

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 3.65 AU - 3.89 AU

Year: 5145 Days

Day: 7.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,205,016 km

• M1: 155,432 km (0.11 R)
• M2: 724,353 km (0.084 R)
• M3: 1,127,519 km (0.086 R)
• M4: 2,133,864 km (0.106 R)
• M5: 2,592,531 km (0.108 R)
• M6: 3,040,577 km (0.115 R)
• M7: 4,048,567 km (0.109 R)
• M8: 4,529,674 km (0.107 R)
• M9: 5,157,387 km (0.058 R)
• M10: 5,578,654 km (0.068 R)
• M11: 7,186,831 km (0.097 R)
• M12: 9,328,774 km (0.077 R)
• M13: 10,792,738 km (0.109 R)
• M14: 12,355,139 km (0.046 R)
• M15: 13,530,080 km (0.07 R)
• M16: 14,722,375 km (0.068 R)
• M17: 17,377,289 km (0.106 R)
• M18: 18,393,956 km (0.063 R)
• M19: 21,537,605 km (0.04 R)
• M20: 23,617,465 km (0.115 R)
• M21: 26,154,645 km (0.041 R)
• M22: 28,519,338 km (0.028 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 118

Radius: 3.9

Gravity: 7.76 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 6.41 AU - 9.09 AU

Year: 15166 Days

Day: 21.8 Hours

Environment

Temp: -241 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,205,016 km

• M1: 48,470 km (0.106 R)
• M2: 260,450 km (0.049 R)
• M3: 388,206 km (0.113 R)
• M4: 1,116,299 km (0.108 R)
• M5: 1,504,805 km (0.116 R)
• M6: 9,050,222 km (0.111 R)
• M7: 9,221,512 km (0.12 R)
• M8: 10,201,827 km (0.12 R)
• M9: 15,118,660 km (0.12 R)
• M10: 16,224,039 km (0.066 R)
• M11: 20,005,574 km (0.114 R)
• M12: 29,717,318 km (0.088 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 517 - 13,313 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit