🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 505.6

Radius: 11.5

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.69 AU - 0.69 AU

Year: 370 Days

Day: 9.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,860,729 km

• M1: 143,016 km (0.117 R)
• M2: 554,260 km (0.113 R)
• M3: 1,002,904 km (0.115 R)
• M4: 1,407,118 km (0.097 R)
• M5: 1,929,065 km (0.091 R)
• M6: 2,357,962 km (0.094 R)
• M7: 2,811,842 km (0.102 R)
• M8: 3,534,399 km (0.083 R)
• M9: 4,522,643 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426

Radius: 13.4

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.7 AU - 1.02 AU

Year: 515 Days

Day: 11.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,860,729 km

• M1: 166,652 km (0.061 R)
• M2: 594,502 km (0.081 R)
• M3: 1,091,167 km (0.115 R)
• M4: 1,587,383 km (0.098 R)
• M5: 2,035,728 km (0.103 R)
• M6: 2,617,664 km (0.096 R)
• M7: 3,366,550 km (0.074 R)
• M8: 3,950,730 km (0.065 R)
• M9: 4,446,647 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.8

Radius: 9

Gravity: 10.97 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 1.14 AU - 1.72 AU

Year: 1104 Days

Day: 8.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 141.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,860,729 km

• M1: 111,899 km (0.041 R)
• M2: 532,568 km (0.105 R)
• M3: 846,574 km (0.111 R)
• M4: 1,333,815 km (0.044 R)
• M5: 2,084,347 km (0.096 R)
• M6: 2,648,331 km (0.047 R)
• M7: 3,745,482 km (0.115 R)
• M8: 4,378,430 km (0.059 R)
• M9: 4,825,878 km (0.083 R)
• M10: 5,283,049 km (0.081 R)
• M11: 5,725,410 km (0.074 R)
• M12: 7,614,980 km (0.105 R)
• M13: 8,015,753 km (0.045 R)
• M14: 8,458,862 km (0.068 R)
• M15: 8,773,018 km (0.048 R)
• M16: 9,273,722 km (0.11 R)
• M17: 10,076,165 km (0.088 R)
• M18: 10,890,725 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.6

Radius: 12.6

Gravity: 2.49 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 2.7 AU - 2.72 AU

Year: 2881 Days

Day: 7.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,860,729 km

• M1: 160,967 km (0.067 R)
• M2: 590,313 km (0.1 R)
• M3: 1,219,073 km (0.089 R)
• M4: 1,946,418 km (0.085 R)
• M5: 2,931,969 km (0.109 R)
• M6: 4,186,197 km (0.104 R)
• M7: 5,249,090 km (0.075 R)
• M8: 6,890,478 km (0.071 R)
• M9: 7,724,037 km (0.112 R)
• M10: 8,337,389 km (0.074 R)
• M11: 8,916,931 km (0.048 R)
• M12: 10,483,968 km (0.084 R)
• M13: 10,931,416 km (0.099 R)
• M14: 11,904,400 km (0.087 R)
• M15: 14,247,701 km (0.093 R)
• M16: 15,551,895 km (0.084 R)

Asteroid Belt

Center: 3.2 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.8

Radius: 14.2

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.08 AU - 4.3 AU

Year: 4577 Days

Day: 14 Hours

Environment

Temp: -204 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,860,729 km

• M1: 188,643 km (0.075 R)
• M2: 718,967 km (0.071 R)
• M3: 1,421,928 km (0.068 R)
• M4: 2,021,366 km (0.108 R)
• M5: 2,545,557 km (0.047 R)
• M6: 3,421,752 km (0.081 R)
• M7: 4,875,843 km (0.116 R)
• M8: 5,831,774 km (0.118 R)
• M9: 6,709,913 km (0.12 R)
• M10: 7,425,290 km (0.107 R)
• M11: 9,458,176 km (0.091 R)
• M12: 13,195,729 km (0.102 R)
• M13: 14,320,256 km (0.092 R)
• M14: 14,991,053 km (0.112 R)
• M15: 16,882,569 km (0.094 R)
• M16: 17,442,214 km (0.098 R)
• M17: 18,467,558 km (0.115 R)
• M18: 18,995,190 km (0.075 R)
• M19: 22,226,803 km (0.067 R)
• M20: 23,585,750 km (0.091 R)
• M21: 26,468,650 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.4

Radius: 11.8

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 4.59 AU - 7.07 AU

Year: 9089 Days

Day: 10.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,860,729 km

• M1: 146,756 km (0.08 R)
• M2: 613,650 km (0.07 R)
• M3: 1,818,961 km (0.077 R)
• M4: 2,461,334 km (0.045 R)
• M5: 3,484,134 km (0.065 R)
• M6: 4,770,975 km (0.036 R)
• M7: 5,490,092 km (0.083 R)
• M8: 5,893,109 km (0.12 R)
• M9: 6,388,427 km (0.115 R)
• M10: 7,584,762 km (0.104 R)
• M11: 8,834,053 km (0.116 R)
• M12: 10,776,133 km (0.047 R)
• M13: 13,524,545 km (0.048 R)
• M14: 15,487,120 km (0.089 R)
• M15: 16,990,578 km (0.077 R)
• M16: 18,069,927 km (0.115 R)
• M17: 20,365,207 km (0.067 R)
• M18: 21,253,519 km (0.069 R)
• M19: 29,110,998 km (0.109 R)
• M20: 39,078,853 km (0.113 R)
• M21: 43,155,844 km (0.114 R)
• M22: 43,950,658 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 741.1

Radius: 3.5

Gravity: 60.5 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 6.29 AU - 10.47 AU

Year: 15663 Days

Day: 21.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 76,860,729 km

• M1: 47,123 km (0.108 R)
• M2: 182,659 km (0.066 R)
• M3: 527,781 km (0.092 R)
• M4: 702,661 km (0.032 R)
• M5: 1,018,911 km (0.047 R)
• M6: 1,169,407 km (0.096 R)
• M7: 2,862,854 km (0.109 R)
• M8: 3,086,653 km (0.104 R)
• M9: 4,288,223 km (0.088 R)
• M10: 4,515,013 km (0.086 R)
• M11: 6,332,179 km (0.097 R)
• M12: 7,798,687 km (0.093 R)
• M13: 9,261,903 km (0.116 R)
• M14: 9,423,020 km (0.083 R)
• M15: 10,429,066 km (0.112 R)
• M16: 11,628,691 km (0.082 R)
• M17: 21,642,324 km (0.107 R)
• M18: 22,501,165 km (0.086 R)
• M19: 25,632,847 km (0.116 R)
• M20: 33,494,066 km (0.112 R)
• M21: 44,474,849 km (0.119 R)
• M22: 49,858,128 km (0.086 R)
• M23: 51,017,811 km (0.058 R)
• M24: 54,082,323 km (0.101 R)
• M25: 54,779,599 km (0.119 R)
• M26: 59,273,818 km (0.103 R)
• M27: 62,466,236 km (0.095 R)
• M28: 65,969,519 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 534.8

Radius: 4.9

Gravity: 22.27 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 9.48 AU - 12.16 AU

Year: 22980 Days

Day: 17.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 76,860,729 km

• M1: 75,996 km (0.075 R)
• M2: 418,575 km (0.053 R)
• M3: 1,122,582 km (0.082 R)
• M4: 1,426,416 km (0.108 R)
• M5: 2,304,854 km (0.102 R)
• M6: 3,526,022 km (0.12 R)
• M7: 3,704,193 km (0.04 R)
• M8: 4,512,321 km (0.062 R)
• M9: 8,931,442 km (0.079 R)
• M10: 12,699,662 km (0.064 R)
• M11: 14,814,228 km (0.092 R)
• M12: 16,157,019 km (0.076 R)
• M13: 16,402,060 km (0.091 R)
• M14: 17,152,293 km (0.1 R)
• M15: 18,991,450 km (0.118 R)
• M16: 23,056,173 km (0.083 R)
• M17: 27,316,721 km (0.111 R)
• M18: 29,206,740 km (0.113 R)
• M19: 30,680,130 km (0.103 R)
• M20: 36,226,770 km (0.054 R)
• M21: 59,474,877 km (0.037 R)
• M22: 60,647,426 km (0.093 R)
• M23: 66,952,377 km (0.092 R)
• M24: 67,796,409 km (0.09 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 168 - 11,757 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit