🌌 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: 548.2

Radius: 8.6

Gravity: 7.41 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.43 AU - 0.61 AU

Year: 254 Days

Day: 13.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,354,152 km

• M1: 106,962 km (0.064 R)
• M2: 392,096 km (0.119 R)
• M3: 670,348 km (0.099 R)
• M4: 960,418 km (0.115 R)
• M5: 1,357,601 km (0.108 R)
• M6: 1,641,687 km (0.047 R)
• M7: 2,022,713 km (0.109 R)
• M8: 2,470,310 km (0.085 R)
• M9: 2,771,600 km (0.051 R)
• M10: 3,427,736 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.4

Radius: 8.5

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.78 AU - 1.12 AU

Year: 628 Days

Day: 9 Hours

Environment

Temp: -171 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,354,152 km

• M1: 105,766 km (0.076 R)
• M2: 406,009 km (0.063 R)
• M3: 680,371 km (0.116 R)
• M4: 1,338,303 km (0.116 R)
• M5: 1,661,434 km (0.069 R)
• M6: 2,116,361 km (0.096 R)
• M7: 2,477,640 km (0.115 R)
• M8: 2,890,979 km (0.051 R)
• M9: 3,155,917 km (0.077 R)
• M10: 3,564,618 km (0.06 R)
• M11: 3,966,438 km (0.068 R)
• M12: 4,413,137 km (0.068 R)
• M13: 5,407,365 km (0.047 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.1

Radius: 9.2

Gravity: 8.56 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.17 AU - 1.77 AU

Year: 1209 Days

Day: 9.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 117.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,354,152 km

• M1: 114,442 km (0.095 R)
• M2: 501,901 km (0.095 R)
• M3: 865,424 km (0.12 R)
• M4: 1,177,485 km (0.095 R)
• M5: 1,522,458 km (0.109 R)
• M6: 1,844,841 km (0.085 R)
• M7: 2,567,399 km (0.109 R)
• M8: 3,113,132 km (0.07 R)
• M9: 3,560,130 km (0.106 R)
• M10: 4,083,423 km (0.108 R)
• M11: 4,601,331 km (0.117 R)
• M12: 5,042,645 km (0.097 R)
• M13: 5,790,036 km (0.109 R)
• M14: 6,305,101 km (0.103 R)
• M15: 6,923,689 km (0.11 R)
• M16: 8,562,234 km (0.115 R)
• M17: 8,936,079 km (0.09 R)
• M18: 9,624,379 km (0.107 R)
• M19: 10,607,536 km (0.08 R)
• M20: 11,725,930 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.9

Radius: 9.7

Gravity: 7.78 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 1.38 AU - 2.14 AU

Year: 1584 Days

Day: 6.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 42,354,152 km

• M1: 120,875 km (0.083 R)
• M2: 544,387 km (0.06 R)
• M3: 1,541,456 km (0.086 R)
• M4: 1,996,234 km (0.042 R)
• M5: 2,881,405 km (0.107 R)
• M6: 3,510,314 km (0.11 R)
• M7: 4,008,625 km (0.082 R)
• M8: 4,379,328 km (0.116 R)
• M9: 4,936,730 km (0.118 R)
• M10: 5,518,366 km (0.076 R)
• M11: 6,818,372 km (0.076 R)
• M12: 7,402,851 km (0.114 R)
• M13: 8,049,113 km (0.12 R)
• M14: 9,010,429 km (0.073 R)
• M15: 9,979,375 km (0.108 R)
• M16: 10,351,574 km (0.106 R)
• M17: 12,430,985 km (0.081 R)
• M18: 12,901,919 km (0.042 R)
• M19: 13,630,610 km (0.112 R)
• M20: 14,173,650 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.7

Radius: 14.7

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 2.84 AU - 3.02 AU

Year: 3402 Days

Day: 6.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 42,354,152 km

• M1: 187,147 km (0.112 R)
• M2: 813,663 km (0.061 R)
• M3: 1,509,443 km (0.077 R)
• M4: 2,809,747 km (0.092 R)
• M5: 7,017,487 km (0.098 R)
• M6: 7,744,233 km (0.071 R)
• M7: 8,914,687 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 566

Radius: 5.6

Gravity: 18.05 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 5.49 AU - 5.95 AU

Year: 9279 Days

Day: 18.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 42,354,152 km

• M1: 69,713 km (0.12 R)
• M2: 530,773 km (0.056 R)
• M3: 737,069 km (0.117 R)
• M4: 987,496 km (0.112 R)
• M5: 1,392,158 km (0.109 R)
• M6: 1,590,973 km (0.095 R)
• M7: 1,948,811 km (0.037 R)
• M8: 3,079,023 km (0.115 R)
• M9: 3,280,083 km (0.108 R)
• M10: 3,859,625 km (0.091 R)
• M11: 4,309,615 km (0.069 R)
• M12: 5,409,609 km (0.111 R)
• M13: 5,938,736 km (0.117 R)
• M14: 6,501,823 km (0.034 R)
• M15: 8,233,418 km (0.115 R)
• M16: 9,113,652 km (0.069 R)
• M17: 9,297,059 km (0.098 R)
• M18: 12,129,395 km (0.111 R)
• M19: 15,166,382 km (0.109 R)
• M20: 17,662,721 km (0.108 R)
• M21: 22,106,377 km (0.065 R)
• M22: 24,761,888 km (0.075 R)
• M23: 26,397,442 km (0.117 R)
• M24: 28,200,545 km (0.105 R)
• M25: 32,795,294 km (0.096 R)
• M26: 34,988,399 km (0.119 R)
• M27: 40,276,833 km (0.094 R)
• M28: 42,405,760 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 379.3

Radius: 4.6

Gravity: 17.93 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 6.01 AU - 6.93 AU

Year: 11162 Days

Day: 15 Hours

Environment

Temp: -238 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 42,354,152 km

• M1: 57,745 km (0.116 R)
• M2: 312,211 km (0.077 R)
• M3: 599,139 km (0.08 R)
• M4: 853,306 km (0.097 R)
• M5: 1,199,177 km (0.073 R)
• M6: 1,619,098 km (0.112 R)
• M7: 1,855,163 km (0.056 R)
• M8: 2,030,641 km (0.12 R)
• M9: 2,804,960 km (0.115 R)
• M10: 4,041,386 km (0.114 R)
• M11: 4,647,707 km (0.119 R)
• M12: 6,283,260 km (0.099 R)
• M13: 7,973,118 km (0.1 R)
• M14: 8,922,017 km (0.108 R)
• M15: 13,181,517 km (0.05 R)
• M16: 13,711,842 km (0.03 R)
• M17: 16,309,459 km (0.108 R)
• M18: 18,624,486 km (0.105 R)
• M19: 19,442,487 km (0.068 R)
• M20: 28,295,839 km (0.091 R)
• M21: 28,685,242 km (0.03 R)
• M22: 29,474,969 km (0.093 R)
• M23: 29,875,293 km (0.11 R)
• M24: 37,129,144 km (0.088 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: 308 - 14,886 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit