🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.6

Radius: 8.1

Gravity: 11.36 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.81 AU - 1.07 AU

Year: 641 Days

Day: 5.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,598,818 km

• M1: 100,679 km (0.049 R)
• M2: 360,980 km (0.099 R)
• M3: 839,693 km (0.072 R)
• M4: 1,140,684 km (0.066 R)
• M5: 1,425,817 km (0.116 R)
• M6: 1,809,536 km (0.099 R)
• M7: 2,162,886 km (0.101 R)
• M8: 2,683,337 km (0.04 R)
• M9: 2,937,504 km (0.104 R)
• M10: 3,375,377 km (0.097 R)
• M11: 4,090,903 km (0.109 R)
• M12: 4,556,901 km (0.045 R)
• M13: 4,988,939 km (0.116 R)
• M14: 6,031,936 km (0.12 R)
• M15: 6,698,544 km (0.075 R)
• M16: 7,039,029 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.9

Radius: 10.4

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.98 AU - 1.16 AU

Year: 778 Days

Day: 8.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,598,818 km

• M1: 129,402 km (0.09 R)
• M2: 520,900 km (0.102 R)
• M3: 921,224 km (0.068 R)
• M4: 1,245,402 km (0.055 R)
• M5: 1,713,195 km (0.091 R)
• M6: 2,265,809 km (0.1 R)
• M7: 3,993,066 km (0.042 R)
• M8: 4,317,843 km (0.108 R)
• M9: 4,744,646 km (0.094 R)
• M10: 5,568,930 km (0.059 R)
• M11: 6,015,480 km (0.109 R)
• M12: 7,181,147 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.6

Radius: 12.9

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.98 AU - 1.46 AU

Year: 947 Days

Day: 8.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,598,818 km

• M1: 160,519 km (0.058 R)
• M2: 615,894 km (0.096 R)
• M3: 1,020,108 km (0.094 R)
• M4: 1,663,080 km (0.049 R)
• M5: 2,251,298 km (0.032 R)
• M6: 2,747,066 km (0.101 R)
• M7: 3,666,345 km (0.073 R)
• M8: 4,496,164 km (0.117 R)
• M9: 5,567,883 km (0.095 R)
• M10: 6,003,363 km (0.109 R)
• M11: 7,037,533 km (0.05 R)
• M12: 7,748,422 km (0.12 R)
• M13: 8,345,766 km (0.091 R)
• M14: 9,199,521 km (0.114 R)
• M15: 10,263,012 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 492

Radius: 10.2

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.51 AU - 1.77 AU

Year: 1476 Days

Day: 9.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,598,818 km

• M1: 126,859 km (0.115 R)
• M2: 453,581 km (0.097 R)
• M3: 819,796 km (0.075 R)
• M4: 1,186,461 km (0.076 R)
• M5: 1,814,323 km (0.107 R)
• M6: 3,537,690 km (0.114 R)
• M7: 4,799,249 km (0.116 R)
• M8: 5,564,143 km (0.116 R)
• M9: 7,259,536 km (0.118 R)
• M10: 7,858,675 km (0.066 R)
• M11: 8,462,303 km (0.114 R)
• M12: 8,891,349 km (0.107 R)
• M13: 10,138,846 km (0.063 R)
• M14: 10,921,093 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.6

Radius: 8.6

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.46 AU - 2.42 AU

Year: 1899 Days

Day: 7.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,598,818 km

• M1: 107,112 km (0.115 R)
• M2: 432,936 km (0.111 R)
• M3: 825,331 km (0.108 R)
• M4: 1,714,092 km (0.112 R)
• M5: 1,991,297 km (0.109 R)
• M6: 2,688,872 km (0.115 R)
• M7: 3,238,495 km (0.043 R)
• M8: 6,537,128 km (0.094 R)
• M9: 6,972,158 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868

Radius: 10

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 2.74 AU - 3.24 AU

Year: 3634 Days

Day: 10.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,598,818 km

• M1: 124,316 km (0.088 R)
• M2: 483,351 km (0.113 R)
• M3: 827,127 km (0.075 R)
• M4: 2,058,317 km (0.076 R)
• M5: 2,410,022 km (0.089 R)
• M6: 2,977,746 km (0.086 R)
• M7: 4,546,429 km (0.059 R)
• M8: 5,831,624 km (0.1 R)
• M9: 6,390,223 km (0.116 R)
• M10: 11,665,343 km (0.036 R)
• M11: 16,788,471 km (0.077 R)
• M12: 17,258,508 km (0.038 R)
• M13: 23,457,545 km (0.073 R)
• M14: 24,417,364 km (0.069 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 768.9

Radius: 8.7

Gravity: 10.16 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.68 AU - 4.72 AU

Year: 6050 Days

Day: 12 Hours

Environment

Temp: -224 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,598,818 km

• M1: 108,159 km (0.09 R)
• M2: 451,486 km (0.077 R)
• M3: 1,106,276 km (0.12 R)
• M4: 2,992,406 km (0.105 R)
• M5: 4,037,198 km (0.119 R)
• M6: 4,989,239 km (0.071 R)
• M7: 5,609,771 km (0.114 R)
• M8: 6,019,070 km (0.1 R)
• M9: 7,293,943 km (0.115 R)
• M10: 8,657,528 km (0.077 R)
• M11: 10,000,618 km (0.069 R)
• M12: 12,138,072 km (0.084 R)
• M13: 12,451,330 km (0.083 R)
• M14: 14,099,899 km (0.118 R)
• M15: 14,504,710 km (0.081 R)
• M16: 18,849,332 km (0.113 R)
• M17: 21,240,654 km (0.099 R)
• M18: 25,238,208 km (0.106 R)
• M19: 26,441,573 km (0.065 R)
• M20: 31,835,923 km (0.077 R)
• M21: 35,528,896 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 532.7

Radius: 3.2

Gravity: 52.02 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 9.47 AU - 9.87 AU

Year: 21137 Days

Day: 19.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 72,598,818 km

• M1: 41,887 km (0.073 R)
• M2: 1,300,454 km (0.115 R)
• M3: 2,243,519 km (0.03 R)
• M4: 2,553,636 km (0.079 R)
• M5: 2,866,594 km (0.117 R)
• M6: 3,896,875 km (0.09 R)
• M7: 5,301,150 km (0.108 R)
• M8: 7,241,435 km (0.117 R)
• M9: 8,164,902 km (0.043 R)
• M10: 13,266,190 km (0.068 R)
• M11: 14,941,835 km (0.076 R)
• M12: 19,691,717 km (0.1 R)
• M13: 20,711,227 km (0.104 R)
• M14: 23,056,622 km (0.113 R)
• M15: 24,820,980 km (0.063 R)
• M16: 30,528,288 km (0.118 R)
• M17: 31,765,911 km (0.111 R)
• M18: 35,005,303 km (0.074 R)
• M19: 35,950,313 km (0.118 R)
• M20: 46,514,167 km (0.104 R)
• M21: 55,079,542 km (0.095 R)
• M22: 71,515,860 km (0.076 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 146 - 12,700 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit