🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.3

Radius: 14.6

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.83 AU - 0.85 AU

Year: 497 Days

Day: 11.6 Hours

Environment

Temp: -158 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 63,954,765 km

• M1: 181,612 km (0.113 R)
• M2: 1,242,710 km (0.118 R)
• M3: 1,704,817 km (0.061 R)
• M4: 2,220,780 km (0.053 R)
• M5: 2,833,533 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.8

Radius: 14.1

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.22 AU - 1.6 AU

Year: 1081 Days

Day: 9.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 63,954,765 km

• M1: 175,628 km (0.115 R)
• M2: 679,474 km (0.115 R)
• M3: 1,199,326 km (0.104 R)
• M4: 1,775,876 km (0.081 R)
• M5: 2,278,525 km (0.065 R)
• M6: 3,072,291 km (0.065 R)
• M7: 3,853,342 km (0.025 R)
• M8: 4,359,432 km (0.1 R)
• M9: 4,891,402 km (0.042 R)
• M10: 5,750,542 km (0.102 R)
• M11: 6,869,833 km (0.086 R)
• M12: 7,322,367 km (0.096 R)
• M13: 8,234,764 km (0.075 R)
• M14: 8,967,794 km (0.095 R)
• M15: 9,685,116 km (0.111 R)
• M16: 10,316,868 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.5

Radius: 13.3

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.55 AU - 1.55 AU

Year: 1246 Days

Day: 9.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,954,765 km

• M1: 165,605 km (0.026 R)
• M2: 867,219 km (0.117 R)
• M3: 1,470,547 km (0.087 R)
• M4: 2,731,807 km (0.086 R)
• M5: 4,858,939 km (0.073 R)
• M6: 5,398,538 km (0.061 R)
• M7: 6,749,856 km (0.058 R)
• M8: 7,921,506 km (0.047 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 79.6

Radius: 3.5

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 5.54 AU - 6.54 AU

Year: 9585 Days

Day: 20.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 63,954,765 km

• M1: 77,193 km (0.112 R)
• M2: 365,168 km (0.049 R)
• M3: 638,035 km (0.058 R)
• M4: 1,773,483 km (0.102 R)
• M5: 4,115,138 km (0.117 R)
• M6: 4,246,336 km (0.089 R)
• M7: 4,425,853 km (0.078 R)
• M8: 5,909,565 km (0.112 R)
• M9: 6,276,079 km (0.072 R)
• M10: 6,627,634 km (0.113 R)
• M11: 7,861,219 km (0.065 R)
• M12: 9,541,352 km (0.096 R)
• M13: 10,566,696 km (0.106 R)
• M14: 17,201,960 km (0.082 R)
• M15: 19,317,573 km (0.111 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 511.6

Radius: 6

Gravity: 14.21 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 5.99 AU - 6.23 AU

Year: 9752 Days

Day: 17.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 63,954,765 km

• M1: 74,649 km (0.041 R)
• M2: 315,352 km (0.095 R)
• M3: 628,610 km (0.047 R)
• M4: 1,115,851 km (0.034 R)
• M5: 1,447,509 km (0.078 R)
• M6: 1,752,539 km (0.115 R)
• M7: 3,305,814 km (0.115 R)
• M8: 3,913,181 km (0.107 R)
• M9: 4,394,737 km (0.115 R)
• M10: 4,621,078 km (0.096 R)
• M11: 5,507,595 km (0.087 R)
• M12: 5,939,933 km (0.116 R)
• M13: 6,181,833 km (0.106 R)
• M14: 6,430,315 km (0.091 R)
• M15: 6,796,979 km (0.109 R)
• M16: 7,061,767 km (0.091 R)
• M17: 7,774,452 km (0.102 R)
• M18: 8,490,726 km (0.085 R)
• M19: 10,851,381 km (0.116 R)
• M20: 12,126,403 km (0.103 R)
• M21: 13,145,913 km (0.112 R)
• M22: 13,856,652 km (0.118 R)
• M23: 14,843,550 km (0.117 R)
• M24: 15,289,800 km (0.12 R)
• M25: 16,887,804 km (0.117 R)
• M26: 17,798,407 km (0.119 R)
• M27: 22,096,952 km (0.119 R)
• M28: 22,678,588 km (0.101 R)
• M29: 24,396,870 km (0.075 R)
• M30: 29,068,512 km (0.067 R)
• M31: 31,508,902 km (0.06 R)
• M32: 33,644,112 km (0.085 R)
• M33: 38,200,415 km (0.107 R)
• M34: 41,749,475 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 528

Radius: 4.6

Gravity: 24.95 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 5.52 AU - 8.34 AU

Year: 11779 Days

Day: 22 Hours

Environment

Temp: -224 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,954,765 km

• M1: 110,702 km (0.069 R)
• M2: 333,304 km (0.093 R)
• M3: 557,551 km (0.105 R)
• M4: 708,944 km (0.118 R)
• M5: 1,010,234 km (0.114 R)
• M6: 2,050,239 km (0.095 R)
• M7: 3,097,574 km (0.12 R)
• M8: 4,430,191 km (0.103 R)
• M9: 5,172,945 km (0.088 R)
• M10: 6,177,345 km (0.048 R)
• M11: 8,382,118 km (0.109 R)
• M12: 8,748,035 km (0.094 R)
• M13: 9,413,745 km (0.048 R)
• M14: 12,593,598 km (0.084 R)
• M15: 13,565,236 km (0.098 R)
• M16: 17,140,326 km (0.084 R)
• M17: 20,220,845 km (0.086 R)
• M18: 21,044,980 km (0.089 R)
• M19: 27,951,465 km (0.103 R)
• M20: 28,663,999 km (0.099 R)
• M21: 45,998,054 km (0.069 R)
• M22: 46,563,534 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 524.8

Radius: 5.8

Gravity: 15.6 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 7.45 AU - 10.67 AU

Year: 17608 Days

Day: 20.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 63,954,765 km

• M1: 72,106 km (0.099 R)
• M2: 457,321 km (0.095 R)
• M3: 743,053 km (0.087 R)
• M4: 1,131,409 km (0.081 R)
• M5: 1,415,196 km (0.112 R)
• M6: 2,582,957 km (0.082 R)
• M7: 3,153,074 km (0.116 R)
• M8: 4,507,234 km (0.067 R)
• M9: 5,045,637 km (0.12 R)
• M10: 5,971,349 km (0.112 R)
• M11: 6,789,649 km (0.104 R)
• M12: 7,962,047 km (0.105 R)
• M13: 8,250,622 km (0.101 R)
• M14: 8,900,026 km (0.09 R)
• M15: 9,799,708 km (0.082 R)
• M16: 10,642,692 km (0.086 R)
• M17: 11,902,755 km (0.111 R)
• M18: 12,090,500 km (0.089 R)
• M19: 12,927,201 km (0.07 R)
• M20: 13,733,234 km (0.105 R)
• M21: 14,643,687 km (0.087 R)
• M22: 21,983,856 km (0.101 R)
• M23: 22,647,771 km (0.061 R)
• M24: 23,325,001 km (0.109 R)
• M25: 26,807,639 km (0.1 R)
• M26: 28,897,073 km (0.059 R)
• M27: 31,688,569 km (0.066 R)
• M28: 39,581,652 km (0.066 R)
• M29: 39,860,502 km (0.094 R)
• M30: 40,422,242 km (0.075 R)
• M31: 41,131,785 km (0.088 R)
• M32: 47,109,865 km (0.025 R)
• M33: 47,580,201 km (0.105 R)
• M34: 49,493,109 km (0.058 R)
• M35: 53,132,077 km (0.104 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 219 - 13,945 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit