🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.5

Radius: 11.7

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.84 AU - 0.94 AU

Year: 590 Days

Day: 11.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,630,120 km

• M1: 146,008 km (0.085 R)
• M2: 550,520 km (0.101 R)
• M3: 1,096,552 km (0.103 R)
• M4: 1,579,454 km (0.102 R)
• M5: 2,448,618 km (0.083 R)
• M6: 3,536,194 km (0.071 R)
• M7: 4,297,199 km (0.104 R)
• M8: 4,763,645 km (0.097 R)
• M9: 5,432,497 km (0.042 R)
• M10: 5,942,626 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828.6

Radius: 13.8

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1 AU - 1.34 AU

Year: 890 Days

Day: 5.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,630,120 km

• M1: 171,738 km (0.106 R)
• M2: 699,220 km (0.097 R)
• M3: 1,399,937 km (0.117 R)
• M4: 2,289,895 km (0.106 R)
• M5: 2,770,104 km (0.119 R)
• M6: 3,373,582 km (0.063 R)
• M7: 4,275,806 km (0.082 R)
• M8: 5,048,928 km (0.089 R)
• M9: 5,628,171 km (0.085 R)
• M10: 6,294,779 km (0.114 R)
• M11: 7,786,569 km (0.069 R)
• M12: 8,245,984 km (0.12 R)
• M13: 8,750,428 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.4

Radius: 8.7

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.12 AU - 1.48 AU

Year: 1042 Days

Day: 7.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 52,630,120 km

• M1: 109,356 km (0.033 R)
• M2: 407,654 km (0.103 R)
• M3: 935,735 km (0.047 R)
• M4: 1,230,293 km (0.057 R)
• M5: 1,608,776 km (0.03 R)
• M6: 2,304,406 km (0.11 R)
• M7: 2,674,511 km (0.09 R)
• M8: 3,028,011 km (0.091 R)
• M9: 3,881,915 km (0.1 R)
• M10: 4,279,546 km (0.03 R)
• M11: 4,997,466 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.7

Radius: 9

Gravity: 10.75 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.19 AU - 1.53 AU

Year: 1115 Days

Day: 7.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,630,120 km

• M1: 121,174 km (0.102 R)
• M2: 528,529 km (0.101 R)
• M3: 829,670 km (0.071 R)
• M4: 1,372,860 km (0.095 R)
• M5: 1,936,544 km (0.078 R)
• M6: 3,992,318 km (0.091 R)
• M7: 4,287,176 km (0.082 R)
• M8: 4,671,493 km (0.118 R)
• M9: 5,509,390 km (0.104 R)
• M10: 6,754,045 km (0.069 R)
• M11: 7,533,300 km (0.113 R)
• M12: 7,823,819 km (0.096 R)
• M13: 8,427,297 km (0.109 R)
• M14: 8,711,682 km (0.113 R)
• M15: 9,239,912 km (0.065 R)
• M16: 9,542,399 km (0.08 R)
• M17: 10,199,433 km (0.103 R)
• M18: 11,708,577 km (0.097 R)
• M19: 12,027,370 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.6

Radius: 8.6

Gravity: 10.14 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.72 AU - 1.82 AU

Year: 1655 Days

Day: 13.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,630,120 km

• M1: 107,411 km (0.082 R)
• M2: 724,652 km (0.115 R)
• M3: 1,032,076 km (0.034 R)
• M4: 1,603,091 km (0.028 R)
• M5: 2,197,742 km (0.099 R)
• M6: 3,252,707 km (0.065 R)
• M7: 3,596,482 km (0.096 R)
• M8: 5,027,236 km (0.084 R)
• M9: 5,556,364 km (0.069 R)
• M10: 6,674,010 km (0.108 R)
• M11: 6,988,764 km (0.095 R)
• M12: 7,591,643 km (0.114 R)
• M13: 8,051,507 km (0.038 R)
• M14: 8,499,403 km (0.104 R)
• M15: 8,963,755 km (0.1 R)
• M16: 9,250,534 km (0.061 R)
• M17: 10,216,338 km (0.108 R)
• M18: 12,075,540 km (0.108 R)
• M19: 12,822,482 km (0.109 R)
• M20: 13,475,178 km (0.106 R)
• M21: 14,539,118 km (0.043 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.1

Radius: 13.9

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.99 AU - 2.21 AU

Year: 2139 Days

Day: 10.7 Hours

Environment

Temp: -207 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 52,630,120 km

• M1: 172,935 km (0.039 R)
• M2: 711,039 km (0.113 R)
• M3: 1,466,807 km (0.114 R)
• M4: 2,023,760 km (0.085 R)
• M5: 2,529,999 km (0.079 R)
• M6: 3,443,145 km (0.083 R)
• M7: 3,897,473 km (0.047 R)
• M8: 4,619,283 km (0.117 R)
• M9: 5,097,847 km (0.112 R)
• M10: 6,091,027 km (0.07 R)
• M11: 7,185,186 km (0.089 R)
• M12: 7,703,542 km (0.074 R)
• M13: 9,123,825 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226.9

Radius: 8.8

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 4.39 AU - 4.45 AU

Year: 6532 Days

Day: 9 Hours

Environment

Temp: -226 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,630,120 km

• M1: 109,506 km (0.045 R)
• M2: 916,437 km (0.115 R)
• M3: 2,072,080 km (0.083 R)
• M4: 2,544,809 km (0.096 R)
• M5: 3,069,898 km (0.115 R)
• M6: 4,382,021 km (0.078 R)
• M7: 5,614,109 km (0.11 R)
• M8: 9,044,089 km (0.117 R)
• M9: 10,020,065 km (0.077 R)
• M10: 18,352,068 km (0.079 R)
• M11: 19,592,684 km (0.073 R)
• M12: 21,965,156 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 519.3

Radius: 4.5

Gravity: 25.64 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 6.53 AU - 7.61 AU

Year: 13214 Days

Day: 18.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,630,120 km

• M1: 55,950 km (0.101 R)
• M2: 515,514 km (0.068 R)
• M3: 695,630 km (0.104 R)
• M4: 1,045,540 km (0.073 R)
• M5: 1,945,371 km (0.077 R)
• M6: 3,471,419 km (0.104 R)
• M7: 4,265,185 km (0.109 R)
• M8: 7,112,332 km (0.075 R)
• M9: 8,061,530 km (0.1 R)
• M10: 9,639,339 km (0.061 R)
• M11: 11,242,430 km (0.118 R)
• M12: 12,404,805 km (0.082 R)
• M13: 12,585,818 km (0.114 R)
• M14: 21,016,706 km (0.079 R)
• M15: 23,317,371 km (0.105 R)
• M16: 28,621,513 km (0.094 R)
• M17: 29,149,893 km (0.083 R)
• M18: 31,439,937 km (0.099 R)
• M19: 51,068,674 km (0.115 R)
• M20: 51,533,774 km (0.085 R)
• M21: 52,472,500 km (0.038 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 178 - 10,696 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit