🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91

Radius: 12.4

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.85 AU - 1.11 AU

Year: 647 Days

Day: 5.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,339,739 km

• M1: 154,235 km (0.098 R)
• M2: 619,186 km (0.057 R)
• M3: 1,151,754 km (0.097 R)
• M4: 1,979,329 km (0.115 R)
• M5: 2,860,311 km (0.119 R)
• M6: 3,350,394 km (0.066 R)
• M7: 3,930,235 km (0.065 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.6

Radius: 12.8

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.08 AU - 1.1 AU

Year: 759 Days

Day: 8.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,339,739 km

• M1: 159,771 km (0.098 R)
• M2: 564,433 km (0.111 R)
• M3: 1,176,886 km (0.065 R)
• M4: 1,579,305 km (0.108 R)
• M5: 2,337,616 km (0.107 R)
• M6: 3,211,417 km (0.071 R)
• M7: 3,876,081 km (0.069 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.2

Radius: 9.7

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.96 AU - 1.28 AU

Year: 790 Days

Day: 10.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 72,339,739 km

• M1: 120,576 km (0.028 R)
• M2: 664,364 km (0.081 R)
• M3: 1,276,219 km (0.115 R)
• M4: 1,666,520 km (0.112 R)
• M5: 3,106,549 km (0.084 R)
• M6: 3,523,479 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.2

Radius: 13.1

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.64 AU - 4.08 AU

Year: 4107 Days

Day: 10 Hours

Environment

Temp: -224 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,339,739 km

• M1: 165,306 km (0.075 R)
• M2: 620,083 km (0.051 R)
• M3: 1,213,388 km (0.119 R)
• M4: 1,626,129 km (0.095 R)
• M5: 2,605,247 km (0.116 R)
• M6: 3,578,381 km (0.118 R)
• M7: 4,405,956 km (0.12 R)
• M8: 5,126,420 km (0.119 R)
• M9: 5,980,175 km (0.075 R)
• M10: 6,471,155 km (0.113 R)
• M11: 7,868,250 km (0.1 R)
• M12: 9,079,095 km (0.032 R)
• M13: 9,612,411 km (0.12 R)
• M14: 10,046,095 km (0.097 R)
• M15: 11,913,226 km (0.112 R)
• M16: 13,409,654 km (0.104 R)
• M17: 14,203,271 km (0.051 R)
• M18: 15,613,231 km (0.049 R)
• M19: 16,213,716 km (0.097 R)
• M20: 17,057,299 km (0.034 R)
• M21: 18,528,145 km (0.061 R)
• M22: 19,139,701 km (0.096 R)
• M23: 19,954,561 km (0.099 R)
• M24: 23,947,178 km (0.089 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 77.7

Radius: 5.9

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 4.85 AU - 7.77 AU

Year: 10570 Days

Day: 20.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,339,739 km

• M1: 92,003 km (0.09 R)
• M2: 308,620 km (0.103 R)
• M3: 567,126 km (0.105 R)
• M4: 959,670 km (0.099 R)
• M5: 2,076,568 km (0.089 R)
• M6: 2,502,324 km (0.047 R)
• M7: 2,949,472 km (0.082 R)
• M8: 3,371,038 km (0.086 R)
• M9: 3,853,043 km (0.073 R)
• M10: 4,829,767 km (0.096 R)
• M11: 5,656,744 km (0.083 R)
• M12: 6,911,571 km (0.108 R)
• M13: 10,280,964 km (0.11 R)
• M14: 11,907,841 km (0.101 R)
• M15: 13,649,759 km (0.074 R)
• M16: 14,607,185 km (0.045 R)
• M17: 17,571,616 km (0.1 R)
• M18: 19,256,088 km (0.101 R)
• M19: 20,458,706 km (0.088 R)
• M20: 22,252,534 km (0.045 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 752.1

Radius: 3.9

Gravity: 49.45 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 7.14 AU - 9.32 AU

Year: 15745 Days

Day: 16.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 72,339,739 km

• M1: 48,769 km (0.093 R)
• M2: 872,904 km (0.049 R)
• M3: 1,056,311 km (0.097 R)
• M4: 1,335,759 km (0.107 R)
• M5: 1,646,025 km (0.054 R)
• M6: 2,040,814 km (0.093 R)
• M7: 2,891,278 km (0.093 R)
• M8: 3,273,800 km (0.065 R)
• M9: 4,793,864 km (0.048 R)
• M10: 5,365,627 km (0.089 R)
• M11: 7,215,704 km (0.119 R)
• M12: 7,398,213 km (0.068 R)
• M13: 8,763,892 km (0.091 R)
• M14: 9,289,878 km (0.086 R)
• M15: 9,948,408 km (0.119 R)
• M16: 11,730,119 km (0.088 R)
• M17: 11,855,930 km (0.099 R)
• M18: 12,433,378 km (0.112 R)
• M19: 12,895,336 km (0.113 R)
• M20: 15,680,250 km (0.094 R)
• M21: 17,334,055 km (0.055 R)
• M22: 19,450,266 km (0.088 R)
• M23: 19,804,065 km (0.106 R)
• M24: 20,799,190 km (0.102 R)
• M25: 22,113,408 km (0.05 R)
• M26: 23,883,001 km (0.064 R)
• M27: 24,085,257 km (0.08 R)
• M28: 26,602,391 km (0.094 R)
• M29: 29,637,582 km (0.038 R)
• M30: 30,460,520 km (0.061 R)
• M31: 31,177,991 km (0.025 R)
• M32: 31,906,533 km (0.071 R)
• M33: 32,398,560 km (0.085 R)
• M34: 39,262,709 km (0.062 R)
• M35: 42,882,529 km (0.093 R)
• M36: 44,390,625 km (0.095 R)
• M37: 45,312,148 km (0.108 R)
• M38: 49,126,445 km (0.072 R)
• M39: 51,447,306 km (0.105 R)
• M40: 56,844,349 km (0.073 R)
• M41: 64,349,524 km (0.111 R)
• M42: 65,925,837 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 535.9

Radius: 5.8

Gravity: 15.93 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 9.5 AU - 10.42 AU

Year: 20961 Days

Day: 16.9 Hours

Environment

Temp: -245 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 72,339,739 km

• M1: 114,891 km (0.119 R)
• M2: 351,854 km (0.117 R)
• M3: 591,660 km (0.094 R)
• M4: 1,096,403 km (0.076 R)
• M5: 1,342,342 km (0.079 R)
• M6: 1,927,419 km (0.114 R)
• M7: 2,204,325 km (0.12 R)
• M8: 2,507,410 km (0.064 R)
• M9: 3,170,577 km (0.114 R)
• M10: 4,697,224 km (0.114 R)
• M11: 4,980,412 km (0.044 R)
• M12: 5,464,661 km (0.119 R)
• M13: 6,570,039 km (0.093 R)
• M14: 7,768,318 km (0.096 R)
• M15: 8,997,564 km (0.11 R)
• M16: 9,602,239 km (0.089 R)
• M17: 13,175,832 km (0.11 R)
• M18: 14,245,457 km (0.071 R)
• M19: 14,466,114 km (0.097 R)
• M20: 15,065,852 km (0.117 R)
• M21: 15,294,886 km (0.113 R)
• M22: 16,718,759 km (0.09 R)
• M23: 16,964,249 km (0.116 R)
• M24: 18,488,801 km (0.093 R)
• M25: 22,297,862 km (0.095 R)
• M26: 22,695,343 km (0.09 R)
• M27: 24,753,810 km (0.082 R)
• M28: 28,650,087 km (0.068 R)
• M29: 29,475,568 km (0.111 R)
• M30: 31,546,152 km (0.075 R)
• M31: 32,680,552 km (0.117 R)
• M32: 32,936,365 km (0.101 R)
• M33: 34,897,144 km (0.095 R)
• M34: 35,974,249 km (0.066 R)
• M35: 36,520,879 km (0.115 R)
• M36: 39,337,957 km (0.111 R)
• M37: 49,488,621 km (0.065 R)
• M38: 49,995,160 km (0.089 R)
• M39: 54,710,634 km (0.058 R)
• M40: 59,523,646 km (0.065 R)
• M41: 59,905,121 km (0.116 R)
• M42: 66,028,760 km (0.115 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 549 - 17,621 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit