🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.7

Radius: 8.7

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.56 AU - 0.76 AU

Year: 364 Days

Day: 9.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,550,952 km

• M1: 108,309 km (0.096 R)
• M2: 393,742 km (0.108 R)
• M3: 671,246 km (0.102 R)
• M4: 961,765 km (0.071 R)
• M5: 1,278,015 km (0.029 R)
• M6: 1,582,147 km (0.043 R)
• M7: 2,056,821 km (0.096 R)
• M8: 2,455,200 km (0.1 R)
• M9: 2,834,730 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.4

Radius: 14.9

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.75 AU - 0.75 AU

Year: 441 Days

Day: 7.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 43,550,952 km

• M1: 185,352 km (0.089 R)
• M2: 672,592 km (0.109 R)
• M3: 1,137,991 km (0.111 R)
• M4: 1,950,906 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.3

Radius: 11.5

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.74 AU - 0.94 AU

Year: 522 Days

Day: 6.7 Hours

Environment

Temp: -159 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,550,952 km

• M1: 143,315 km (0.084 R)
• M2: 513,719 km (0.098 R)
• M3: 1,117,795 km (0.058 R)
• M4: 1,543,252 km (0.112 R)
• M5: 2,147,777 km (0.084 R)
• M6: 2,566,651 km (0.06 R)
• M7: 3,074,386 km (0.117 R)
• M8: 3,955,069 km (0.084 R)
• M9: 4,790,273 km (0.116 R)
• M10: 5,241,760 km (0.049 R)
• M11: 5,846,135 km (0.085 R)
• M12: 6,400,545 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 200.1

Radius: 9.7

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.77 AU - 1.03 AU

Year: 579 Days

Day: 9.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,550,952 km

• M1: 120,576 km (0.091 R)
• M2: 428,897 km (0.108 R)
• M3: 780,602 km (0.096 R)
• M4: 1,592,469 km (0.101 R)
• M5: 2,109,629 km (0.078 R)
• M6: 2,452,059 km (0.117 R)
• M7: 3,525,723 km (0.097 R)
• M8: 4,290,168 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.7

Radius: 8.1

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.9 AU - 1.46 AU

Year: 869 Days

Day: 14.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,550,952 km

• M1: 100,829 km (0.088 R)
• M2: 403,465 km (0.083 R)
• M3: 879,187 km (0.039 R)
• M4: 1,266,346 km (0.112 R)
• M5: 1,546,393 km (0.089 R)
• M6: 1,975,739 km (0.075 R)
• M7: 2,233,945 km (0.076 R)
• M8: 2,523,118 km (0.075 R)
• M9: 2,819,471 km (0.081 R)
• M10: 3,206,032 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 229.7

Radius: 12.2

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.25 AU - 1.31 AU

Year: 982 Days

Day: 13.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,550,952 km

• M1: 151,692 km (0.105 R)
• M2: 535,411 km (0.098 R)
• M3: 958,025 km (0.12 R)
• M4: 1,569,282 km (0.076 R)
• M5: 2,381,598 km (0.07 R)
• M6: 3,482,040 km (0.097 R)
• M7: 4,472,677 km (0.08 R)
• M8: 6,251,246 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 512

Radius: 7.6

Gravity: 8.86 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 4.95 AU - 8.05 AU

Year: 11240 Days

Day: 20.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 43,550,952 km

• M1: 97,987 km (0.063 R)
• M2: 673,041 km (0.116 R)
• M3: 958,025 km (0.106 R)
• M4: 1,227,301 km (0.116 R)
• M5: 1,492,688 km (0.071 R)
• M6: 2,649,378 km (0.108 R)
• M7: 2,986,871 km (0.116 R)
• M8: 5,752,188 km (0.117 R)
• M9: 6,138,599 km (0.059 R)
• M10: 6,769,902 km (0.049 R)
• M11: 7,362,010 km (0.116 R)
• M12: 7,860,171 km (0.057 R)
• M13: 8,694,628 km (0.113 R)
• M14: 10,538,721 km (0.096 R)
• M15: 12,111,144 km (0.118 R)
• M16: 13,162,219 km (0.108 R)
• M17: 13,587,077 km (0.117 R)
• M18: 14,786,104 km (0.087 R)
• M19: 17,249,083 km (0.098 R)
• M20: 20,292,203 km (0.099 R)
• M21: 20,614,886 km (0.104 R)
• M22: 22,883,687 km (0.106 R)
• M23: 23,409,524 km (0.089 R)
• M24: 24,033,197 km (0.076 R)
• M25: 29,945,305 km (0.119 R)
• M26: 32,846,008 km (0.115 R)
• M27: 35,577,066 km (0.103 R)
• M28: 40,714,407 km (0.047 R)
• M29: 41,746,034 km (0.047 R)
• M30: 46,744,547 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 366.4

Radius: 7.2

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 5.94 AU - 7.52 AU

Year: 11842 Days

Day: 23 Hours

Environment

Temp: -228 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 43,550,952 km

• M1: 90,806 km (0.089 R)
• M2: 597,943 km (0.048 R)
• M3: 1,043,595 km (0.105 R)
• M4: 1,286,691 km (0.082 R)
• M5: 1,905,428 km (0.106 R)
• M6: 2,273,140 km (0.109 R)
• M7: 4,292,412 km (0.119 R)
• M8: 5,392,854 km (0.105 R)
• M9: 6,060,659 km (0.109 R)
• M10: 6,560,016 km (0.065 R)
• M11: 7,163,793 km (0.107 R)
• M12: 7,763,082 km (0.035 R)
• M13: 9,106,621 km (0.118 R)
• M14: 9,713,839 km (0.059 R)
• M15: 11,429,427 km (0.077 R)
• M16: 11,970,074 km (0.105 R)
• M17: 12,641,469 km (0.116 R)
• M18: 13,161,172 km (0.071 R)
• M19: 13,396,639 km (0.045 R)
• M20: 13,936,837 km (0.081 R)
• M21: 14,869,430 km (0.101 R)
• M22: 15,710,619 km (0.092 R)
• M23: 17,701,168 km (0.08 R)
• M24: 18,351,620 km (0.093 R)
• M25: 20,555,944 km (0.099 R)
• M26: 21,355,395 km (0.044 R)
• M27: 21,762,750 km (0.087 R)
• M28: 24,316,685 km (0.115 R)
• M29: 30,625,377 km (0.083 R)
• M30: 32,410,827 km (0.082 R)
• M31: 34,042,940 km (0.115 R)
• M32: 34,598,846 km (0.039 R)
• M33: 35,273,981 km (0.113 R)
• M34: 35,843,351 km (0.06 R)
• M35: 36,883,505 km (0.095 R)
• M36: 41,371,890 km (0.042 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 363 - 13,473 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit