🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.4

Radius: 10.2

Gravity: 9.45 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.46 AU - 0.7 AU

Year: 295 Days

Day: 5.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,342,862 km

• M1: 126,859 km (0.097 R)
• M2: 451,187 km (0.105 R)
• M3: 778,507 km (0.069 R)
• M4: 1,113,457 km (0.104 R)
• M5: 1,457,981 km (0.1 R)
• M6: 1,822,850 km (0.109 R)
• M7: 2,232,150 km (0.114 R)
• M8: 2,635,466 km (0.091 R)
• M9: 3,013,649 km (0.045 R)
• M10: 3,485,331 km (0.081 R)
• M11: 3,855,586 km (0.083 R)
• M12: 4,358,684 km (0.099 R)
• M13: 4,847,121 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.8

Radius: 9

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.88 AU - 0.9 AU

Year: 560 Days

Day: 7.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,342,862 km

• M1: 111,899 km (0.084 R)
• M2: 413,788 km (0.061 R)
• M3: 1,028,037 km (0.102 R)
• M4: 1,432,100 km (0.063 R)
• M5: 1,758,523 km (0.064 R)
• M6: 2,052,034 km (0.071 R)
• M7: 2,378,606 km (0.068 R)
• M8: 2,820,668 km (0.085 R)
• M9: 3,282,476 km (0.115 R)
• M10: 3,769,118 km (0.089 R)
• M11: 5,205,856 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 735.8

Radius: 12.2

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.72 AU - 1.06 AU

Year: 560 Days

Day: 6.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,342,862 km

• M1: 151,692 km (0.077 R)
• M2: 605,273 km (0.111 R)
• M3: 1,068,278 km (0.068 R)
• M4: 1,819,708 km (0.057 R)
• M5: 2,382,645 km (0.092 R)
• M6: 2,842,958 km (0.063 R)
• M7: 3,312,695 km (0.098 R)
• M8: 3,917,071 km (0.09 R)
• M9: 4,364,967 km (0.094 R)
• M10: 4,830,964 km (0.075 R)
• M11: 5,330,023 km (0.105 R)
• M12: 5,754,132 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 512.9

Radius: 10.8

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.69 AU - 2.73 AU

Year: 2975 Days

Day: 10.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,342,862 km

• M1: 134,339 km (0.114 R)
• M2: 526,285 km (0.094 R)
• M3: 1,102,088 km (0.09 R)
• M4: 1,571,675 km (0.108 R)
• M5: 3,133,926 km (0.092 R)
• M6: 3,571,799 km (0.046 R)
• M7: 4,010,569 km (0.071 R)
• M8: 4,399,973 km (0.098 R)
• M9: 4,882,426 km (0.108 R)
• M10: 5,279,159 km (0.108 R)
• M11: 7,324,162 km (0.107 R)
• M12: 7,814,095 km (0.104 R)
• M13: 11,839,175 km (0.037 R)
• M14: 14,036,918 km (0.102 R)
• M15: 16,806,722 km (0.067 R)
• M16: 17,714,931 km (0.063 R)
• M17: 18,431,355 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.7

Radius: 13.7

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 3.84 AU - 5.36 AU

Year: 6579 Days

Day: 10.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 42,342,862 km

• M1: 170,392 km (0.117 R)
• M2: 665,112 km (0.057 R)
• M3: 1,162,675 km (0.116 R)
• M4: 1,665,772 km (0.063 R)
• M5: 2,160,642 km (0.065 R)
• M6: 3,455,711 km (0.086 R)
• M7: 4,128,752 km (0.086 R)
• M8: 5,561,151 km (0.11 R)
• M9: 6,619,855 km (0.088 R)
• M10: 8,184,500 km (0.057 R)
• M11: 9,595,806 km (0.11 R)
• M12: 10,837,169 km (0.094 R)
• M13: 11,448,875 km (0.043 R)
• M14: 14,129,070 km (0.104 R)
• M15: 14,916,852 km (0.103 R)
• M16: 16,092,841 km (0.034 R)
• M17: 16,889,899 km (0.117 R)
• M18: 17,906,865 km (0.097 R)
• M19: 19,439,645 km (0.078 R)
• M20: 21,203,105 km (0.087 R)
• M21: 23,691,366 km (0.03 R)
• M22: 31,080,902 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 195.7

Radius: 3

Gravity: 21.74 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 7.55 AU - 9.31 AU

Year: 16322 Days

Day: 22.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,342,862 km

• M1: 46,824 km (0.08 R)
• M2: 154,684 km (0.046 R)
• M3: 309,668 km (0.118 R)
• M4: 997,219 km (0.062 R)
• M5: 1,241,662 km (0.066 R)
• M6: 1,710,801 km (0.082 R)
• M7: 6,960,939 km (0.059 R)
• M8: 7,512,506 km (0.05 R)
• M9: 7,634,428 km (0.08 R)
• M10: 8,881,476 km (0.101 R)
• M11: 10,208,409 km (0.11 R)
• M12: 14,907,278 km (0.074 R)
• M13: 20,628,499 km (0.057 R)
• M14: 34,197,624 km (0.077 R)
• M15: 40,565,557 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 122.3

Radius: 6.6

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 8.6 AU - 10.48 AU

Year: 19650 Days

Day: 22.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,342,862 km

• M1: 103,671 km (0.104 R)
• M2: 603,029 km (0.051 R)
• M3: 1,415,645 km (0.096 R)
• M4: 1,656,647 km (0.076 R)
• M5: 2,346,592 km (0.054 R)
• M6: 2,827,549 km (0.088 R)
• M7: 4,413,885 km (0.073 R)
• M8: 8,285,029 km (0.108 R)
• M9: 11,160,450 km (0.083 R)
• M10: 11,581,119 km (0.112 R)
• M11: 13,725,006 km (0.086 R)
• M12: 15,921,701 km (0.102 R)
• M13: 17,910,904 km (0.098 R)
• M14: 27,244,615 km (0.064 R)
• M15: 35,071,276 km (0.027 R)
• M16: 40,346,695 km (0.093 R)
• M17: 41,336,734 km (0.074 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: 346 - 18,264 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit