🌌 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: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 68.4

Radius: 8

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.52 AU - 0.78 AU

Year: 349 Days

Day: 10.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 46,295,005 km

• M1: 99,483 km (0.087 R)
• M2: 474,225 km (0.074 R)
• M3: 809,324 km (0.066 R)
• M4: 1,188,555 km (0.111 R)
• M5: 1,449,304 km (0.106 R)
• M6: 1,765,255 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737

Radius: 12

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.68 AU - 0.82 AU

Year: 433 Days

Day: 13.1 Hours

Environment

Temp: -153 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 46,295,005 km

• M1: 149,448 km (0.112 R)
• M2: 743,352 km (0.082 R)
• M3: 1,308,084 km (0.097 R)
• M4: 1,886,728 km (0.088 R)
• M5: 2,533,739 km (0.071 R)
• M6: 3,040,278 km (0.116 R)
• M7: 3,790,511 km (0.084 R)
• M8: 4,175,725 km (0.098 R)
• M9: 5,295,465 km (0.09 R)
• M10: 5,676,192 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581

Radius: 13.6

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.71 AU - 1.13 AU

Year: 588 Days

Day: 9.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,295,005 km

• M1: 169,195 km (0.115 R)
• M2: 607,367 km (0.108 R)
• M3: 1,052,122 km (0.079 R)
• M4: 1,718,880 km (0.077 R)
• M5: 2,565,454 km (0.044 R)
• M6: 3,085,007 km (0.116 R)
• M7: 3,820,281 km (0.062 R)
• M8: 4,472,378 km (0.095 R)
• M9: 5,082,588 km (0.067 R)
• M10: 5,982,269 km (0.098 R)
• M11: 6,764,517 km (0.046 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.4

Radius: 14.5

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.27 AU - 1.77 AU

Year: 1250 Days

Day: 10.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,295,005 km

• M1: 180,265 km (0.112 R)
• M2: 722,109 km (0.112 R)
• M3: 1,437,336 km (0.07 R)
• M4: 2,481,081 km (0.062 R)
• M5: 3,410,233 km (0.098 R)
• M6: 5,226,501 km (0.12 R)
• M7: 5,956,538 km (0.077 R)
• M8: 6,414,906 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.9

Radius: 13.7

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 3.41 AU - 4.33 AU

Year: 5077 Days

Day: 14.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 46,295,005 km

• M1: 170,392 km (0.031 R)
• M2: 692,638 km (0.117 R)
• M3: 1,444,218 km (0.085 R)
• M4: 1,946,418 km (0.116 R)
• M5: 2,516,236 km (0.093 R)
• M6: 3,665,896 km (0.078 R)
• M7: 4,874,946 km (0.118 R)
• M8: 5,472,440 km (0.05 R)
• M9: 6,815,230 km (0.045 R)
• M10: 8,105,961 km (0.103 R)
• M11: 8,947,449 km (0.085 R)
• M12: 9,846,233 km (0.086 R)
• M13: 10,625,638 km (0.1 R)
• M14: 12,161,409 km (0.064 R)
• M15: 14,487,955 km (0.062 R)
• M16: 16,018,790 km (0.084 R)
• M17: 17,780,455 km (0.088 R)
• M18: 20,556,243 km (0.039 R)
• M19: 21,045,428 km (0.085 R)
• M20: 21,902,325 km (0.058 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 72

Radius: 3.1

Gravity: 7.49 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 5.37 AU - 7.21 AU

Year: 10520 Days

Day: 18.4 Hours

Environment

Temp: -238 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,295,005 km

• M1: 38,895 km (0.065 R)
• M2: 196,272 km (0.035 R)
• M3: 315,352 km (0.093 R)
• M4: 614,249 km (0.099 R)
• M5: 989,440 km (0.099 R)
• M6: 1,146,668 km (0.103 R)
• M7: 1,948,063 km (0.114 R)
• M8: 2,268,053 km (0.115 R)
• M9: 7,351,239 km (0.105 R)
• M10: 8,505,686 km (0.096 R)
• M11: 10,374,164 km (0.077 R)
• M12: 10,828,193 km (0.113 R)
• M13: 11,425,089 km (0.059 R)
• M14: 13,251,080 km (0.072 R)
• M15: 15,957,605 km (0.094 R)
• M16: 16,066,363 km (0.111 R)
• M17: 17,641,778 km (0.115 R)
• M18: 18,707,214 km (0.094 R)
• M19: 22,567,437 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 220.5

Radius: 3.8

Gravity: 15.27 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 6.41 AU - 8.87 AU

Year: 14082 Days

Day: 21.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 46,295,005 km

• M1: 53,706 km (0.1 R)
• M2: 183,557 km (0.051 R)
• M3: 372,200 km (0.059 R)
• M4: 722,857 km (0.077 R)
• M5: 1,032,076 km (0.062 R)
• M6: 1,501,963 km (0.118 R)
• M7: 2,273,738 km (0.101 R)
• M8: 3,058,080 km (0.054 R)
• M9: 4,033,757 km (0.087 R)
• M10: 5,324,936 km (0.037 R)
• M11: 5,483,660 km (0.113 R)
• M12: 6,943,436 km (0.036 R)
• M13: 7,443,242 km (0.09 R)
• M14: 7,681,701 km (0.079 R)
• M15: 9,176,184 km (0.084 R)
• M16: 9,358,544 km (0.09 R)
• M17: 9,919,835 km (0.026 R)
• M18: 10,111,769 km (0.105 R)
• M19: 10,355,314 km (0.111 R)
• M20: 10,503,267 km (0.113 R)
• M21: 11,057,826 km (0.08 R)
• M22: 11,845,309 km (0.08 R)
• M23: 13,886,422 km (0.077 R)
• M24: 18,143,828 km (0.081 R)
• M25: 19,460,289 km (0.093 R)
• M26: 19,988,968 km (0.086 R)
• M27: 23,364,195 km (0.113 R)
• M28: 25,994,874 km (0.041 R)
• M29: 30,603,536 km (0.107 R)
• M30: 35,728,011 km (0.064 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 289.1

Radius: 3.6

Gravity: 22.31 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 7.53 AU - 8.13 AU

Year: 14611 Days

Day: 16.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 46,295,005 km

• M1: 45,927 km (0.076 R)
• M2: 171,738 km (0.03 R)
• M3: 454,927 km (0.08 R)
• M4: 607,517 km (0.066 R)
• M5: 767,437 km (0.084 R)
• M6: 1,281,007 km (0.057 R)
• M7: 1,396,047 km (0.076 R)
• M8: 1,603,390 km (0.058 R)
• M9: 2,027,799 km (0.09 R)
• M10: 2,149,123 km (0.082 R)
• M11: 2,582,658 km (0.066 R)
• M12: 4,175,576 km (0.037 R)
• M13: 5,620,392 km (0.095 R)
• M14: 6,547,899 km (0.102 R)
• M15: 8,929,497 km (0.083 R)
• M16: 11,499,738 km (0.073 R)
• M17: 12,340,328 km (0.113 R)
• M18: 12,922,862 km (0.099 R)
• M19: 13,341,587 km (0.115 R)
• M20: 15,437,453 km (0.12 R)
• M21: 18,259,617 km (0.108 R)
• M22: 18,634,958 km (0.036 R)
• M23: 20,267,520 km (0.104 R)
• M24: 20,588,856 km (0.097 R)
• M25: 21,573,509 km (0.104 R)
• M26: 22,417,690 km (0.106 R)
• M27: 23,724,876 km (0.066 R)
• M28: 24,442,347 km (0.111 R)
• M29: 25,452,432 km (0.118 R)
• M30: 32,103,254 km (0.045 R)
• M31: 33,202,350 km (0.105 R)
• M32: 39,949,513 km (0.08 R)
• M33: 40,075,474 km (0.098 R)
• M34: 42,256,163 km (0.09 R)
• M35: 45,057,383 km (0.103 R)
• M36: 45,330,548 km (0.06 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: 198 - 14,205 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit