🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.8

Radius: 10.6

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.43 AU - 0.61 AU

Year: 250 Days

Day: 14.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 76,101,217 km

• M1: 131,796 km (0.067 R)
• M2: 593,455 km (0.032 R)
• M3: 941,270 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.6

Radius: 8.3

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.81 AU - 1.03 AU

Year: 588 Days

Day: 14.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,101,217 km

• M1: 103,223 km (0.117 R)
• M2: 586,872 km (0.102 R)
• M3: 852,259 km (0.111 R)
• M4: 1,131,259 km (0.084 R)
• M5: 1,569,581 km (0.098 R)
• M6: 2,641,300 km (0.057 R)
• M7: 2,950,668 km (0.093 R)
• M8: 3,851,696 km (0.092 R)
• M9: 4,512,769 km (0.036 R)
• M10: 5,844,041 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 534.9

Radius: 8.7

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.03 AU - 1.21 AU

Year: 790 Days

Day: 8.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,101,217 km

• M1: 109,206 km (0.099 R)
• M2: 434,731 km (0.085 R)
• M3: 1,722,320 km (0.118 R)
• M4: 2,414,360 km (0.115 R)
• M5: 2,871,382 km (0.064 R)
• M6: 3,574,043 km (0.102 R)
• M7: 4,108,257 km (0.079 R)
• M8: 5,593,165 km (0.089 R)
• M9: 7,116,670 km (0.083 R)
• M10: 7,704,141 km (0.055 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.7

Radius: 9.6

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.45 AU - 1.73 AU

Year: 1337 Days

Day: 6 Hours

Environment

Temp: -196 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,101,217 km

• M1: 119,379 km (0.094 R)
• M2: 798,853 km (0.115 R)
• M3: 1,104,331 km (0.045 R)
• M4: 1,796,222 km (0.12 R)
• M5: 2,727,917 km (0.078 R)
• M6: 3,870,396 km (0.1 R)
• M7: 5,044,739 km (0.112 R)
• M8: 5,387,767 km (0.085 R)
• M9: 8,025,926 km (0.108 R)
• M10: 9,855,209 km (0.112 R)
• M11: 10,425,176 km (0.095 R)
• M12: 10,883,694 km (0.117 R)
• M13: 11,253,350 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.2

Radius: 11.7

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 2.21 AU - 3.57 AU

Year: 3276 Days

Day: 7.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 76,101,217 km

• M1: 145,559 km (0.04 R)
• M2: 1,058,854 km (0.085 R)
• M3: 2,939,897 km (0.066 R)
• M4: 5,834,766 km (0.028 R)
• M5: 6,444,676 km (0.096 R)
• M6: 9,932,551 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 356.7

Radius: 13.8

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.96 AU - 3.22 AU

Year: 3622 Days

Day: 8.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 76,101,217 km

• M1: 176,077 km (0.098 R)
• M2: 728,093 km (0.054 R)
• M3: 1,490,743 km (0.031 R)
• M4: 2,074,623 km (0.114 R)
• M5: 2,628,883 km (0.12 R)
• M6: 3,264,226 km (0.088 R)
• M7: 3,941,754 km (0.105 R)
• M8: 4,388,154 km (0.091 R)
• M9: 6,279,071 km (0.084 R)
• M10: 7,790,010 km (0.117 R)
• M11: 8,300,587 km (0.068 R)
• M12: 9,748,246 km (0.097 R)
• M13: 10,266,453 km (0.08 R)
• M14: 10,764,016 km (0.06 R)
• M15: 15,395,416 km (0.055 R)
• M16: 18,452,897 km (0.046 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 947.6

Radius: 4.1

Gravity: 56.37 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 5.24 AU - 6.72 AU

Year: 9752 Days

Day: 20.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 76,101,217 km

• M1: 51,761 km (0.073 R)
• M2: 210,933 km (0.069 R)
• M3: 509,680 km (0.078 R)
• M4: 758,312 km (0.118 R)
• M5: 994,676 km (0.042 R)
• M6: 1,453,493 km (0.11 R)
• M7: 1,599,052 km (0.067 R)
• M8: 2,708,769 km (0.099 R)
• M9: 2,862,406 km (0.102 R)
• M10: 3,358,921 km (0.118 R)
• M11: 4,612,701 km (0.119 R)
• M12: 5,158,135 km (0.066 R)
• M13: 6,453,652 km (0.086 R)
• M14: 8,130,943 km (0.051 R)
• M15: 9,564,989 km (0.074 R)
• M16: 9,974,139 km (0.069 R)
• M17: 10,937,250 km (0.097 R)
• M18: 12,255,955 km (0.074 R)
• M19: 13,613,107 km (0.118 R)
• M20: 14,999,131 km (0.068 R)
• M21: 16,768,575 km (0.082 R)
• M22: 17,741,410 km (0.119 R)
• M23: 19,230,058 km (0.06 R)
• M24: 23,633,920 km (0.111 R)
• M25: 27,524,662 km (0.028 R)
• M26: 28,664,897 km (0.071 R)
• M27: 30,928,462 km (0.09 R)
• M28: 33,076,837 km (0.079 R)
• M29: 35,807,746 km (0.109 R)
• M30: 37,165,497 km (0.086 R)
• M31: 37,667,547 km (0.063 R)
• M32: 39,460,627 km (0.114 R)
• M33: 39,590,777 km (0.116 R)
• M34: 40,510,355 km (0.066 R)
• M35: 47,055,711 km (0.111 R)
• M36: 51,582,094 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 579.2

Radius: 4.9

Gravity: 24.12 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 10.02 AU - 10.4 AU

Year: 21755 Days

Day: 21.7 Hours

Environment

Temp: -245 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,101,217 km

• M1: 60,886 km (0.112 R)
• M2: 260,749 km (0.053 R)
• M3: 1,073,215 km (0.116 R)
• M4: 1,524,552 km (0.068 R)
• M5: 2,218,387 km (0.105 R)
• M6: 3,462,892 km (0.051 R)
• M7: 4,854,900 km (0.105 R)
• M8: 6,716,645 km (0.111 R)
• M9: 10,691,311 km (0.112 R)
• M10: 11,968,129 km (0.05 R)
• M11: 16,650,393 km (0.108 R)
• M12: 18,804,303 km (0.09 R)
• M13: 20,560,283 km (0.073 R)
• M14: 20,943,552 km (0.104 R)
• M15: 40,621,656 km (0.055 R)
• M16: 46,759,208 km (0.034 R)
• M17: 67,757,812 km (0.072 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 471 - 15,946 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit