🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.56

Radius: 0.79

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.46 AU - 0.58 AU

Year: 238 Days

Day: 34.7 Hours

Environment

Temp: -109 °C

Axial Tilt: 35.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 18,231,546 km

• M1: 24,833 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 545.4

Radius: 12.5

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.7 AU - 0.78 AU

Year: 405 Days

Day: 10.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 18,231,546 km

• M1: 155,881 km (0.099 R)
• M2: 731,683 km (0.108 R)
• M3: 1,308,832 km (0.108 R)
• M4: 1,767,499 km (0.108 R)
• M5: 2,548,549 km (0.112 R)
• M6: 3,008,862 km (0.083 R)
• M7: 3,665,896 km (0.092 R)
• M8: 4,151,341 km (0.065 R)
• M9: 4,722,057 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.7

Radius: 11.3

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.83 AU - 0.87 AU

Year: 498 Days

Day: 10 Hours

Environment

Temp: -147 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 18,231,546 km

• M1: 140,472 km (0.114 R)
• M2: 599,738 km (0.039 R)
• M3: 955,332 km (0.096 R)
• M4: 1,405,771 km (0.059 R)
• M5: 2,014,485 km (0.085 R)
• M6: 2,513,095 km (0.049 R)
• M7: 2,923,591 km (0.111 R)
• M8: 4,101,375 km (0.1 R)
• M9: 5,068,675 km (0.049 R)
• M10: 5,746,802 km (0.097 R)
• M11: 6,332,029 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.9

Radius: 11.1

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.66 AU - 1.1 AU

Year: 525 Days

Day: 12.1 Hours

Environment

Temp: -159 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 18,231,546 km

• M1: 141,669 km (0.089 R)
• M2: 632,201 km (0.096 R)
• M3: 1,262,905 km (0.088 R)
• M4: 1,781,262 km (0.091 R)
• M5: 3,131,083 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.5

Radius: 9.6

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.06 AU - 1.66 AU

Year: 1008 Days

Day: 12.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 18,231,546 km

• M1: 119,828 km (0.067 R)
• M2: 448,494 km (0.097 R)
• M3: 790,924 km (0.095 R)
• M4: 1,220,270 km (0.087 R)
• M5: 1,659,190 km (0.115 R)
• M6: 2,271,943 km (0.059 R)
• M7: 2,870,185 km (0.119 R)
• M8: 3,232,960 km (0.114 R)
• M9: 4,081,778 km (0.066 R)
• M10: 4,395,784 km (0.092 R)
• M11: 4,828,122 km (0.059 R)
• M12: 6,401,143 km (0.102 R)
• M13: 7,616,177 km (0.072 R)
• M14: 8,142,911 km (0.114 R)
• M15: 8,465,444 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.8

Radius: 10.1

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.92 AU - 2.3 AU

Year: 1949 Days

Day: 14.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 18,231,546 km

• M1: 125,961 km (0.087 R)
• M2: 456,573 km (0.07 R)
• M3: 1,069,924 km (0.084 R)
• M4: 1,461,272 km (0.063 R)
• M5: 1,788,293 km (0.104 R)
• M6: 2,164,681 km (0.07 R)
• M7: 2,675,558 km (0.057 R)
• M8: 3,004,673 km (0.06 R)
• M9: 3,344,859 km (0.119 R)
• M10: 4,177,969 km (0.064 R)
• M11: 5,057,904 km (0.038 R)
• M12: 6,105,089 km (0.059 R)
• M13: 6,628,831 km (0.117 R)
• M14: 7,209,271 km (0.06 R)
• M15: 7,709,077 km (0.093 R)
• M16: 8,321,382 km (0.057 R)
• M17: 8,965,700 km (0.082 R)
• M18: 10,079,007 km (0.071 R)
• M19: 12,499,500 km (0.097 R)
• M20: 12,817,097 km (0.042 R)
• M21: 14,313,674 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.3

Radius: 8.3

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 4.38 AU - 5.14 AU

Year: 6603 Days

Day: 8.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 18,231,546 km

• M1: 103,223 km (0.117 R)
• M2: 366,664 km (0.069 R)
• M3: 639,830 km (0.062 R)
• M4: 939,175 km (0.114 R)
• M5: 1,385,725 km (0.078 R)
• M6: 1,745,358 km (0.09 R)
• M7: 2,347,041 km (0.104 R)
• M8: 3,174,916 km (0.087 R)
• M9: 3,572,547 km (0.054 R)
• M10: 3,914,228 km (0.047 R)
• M11: 4,967,996 km (0.104 R)
• M12: 5,588,827 km (0.116 R)
• M13: 7,658,962 km (0.075 R)
• M14: 10,751,599 km (0.118 R)
• M15: 12,792,563 km (0.116 R)
• M16: 17,382,076 km (0.084 R)
• M17: 19,646,688 km (0.105 R)
• M18: 20,443,447 km (0.057 R)
• M19: 21,192,483 km (0.042 R)
• M20: 22,817,714 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 27.3

Radius: 3.5

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 6.84 AU - 7.14 AU

Year: 11750 Days

Day: 16.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 18,231,546 km

• M1: 64,626 km (0.102 R)
• M2: 267,780 km (0.102 R)
• M3: 843,582 km (0.103 R)
• M4: 1,530,386 km (0.089 R)
• M5: 3,036,687 km (0.108 R)
• M6: 3,483,237 km (0.102 R)
• M7: 4,441,411 km (0.113 R)
• M8: 4,700,515 km (0.064 R)
• M9: 5,368,170 km (0.113 R)
• M10: 5,587,630 km (0.087 R)
• M11: 9,425,863 km (0.116 R)
• M12: 10,368,180 km (0.081 R)
• M13: 10,978,389 km (0.098 R)
• M14: 11,855,930 km (0.087 R)
• M15: 12,103,216 km (0.069 R)
• M16: 12,353,792 km (0.086 R)
• M17: 12,822,333 km (0.072 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 246 - 12,598 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit