🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.9

Radius: 14.3

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.59 AU - 0.77 AU

Year: 380 Days

Day: 12.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 62,110,767 km

• M1: 177,872 km (0.046 R)
• M2: 732,581 km (0.096 R)
• M3: 1,463,666 km (0.049 R)
• M4: 2,328,491 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522.5

Radius: 12.2

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.79 AU - 1.13 AU

Year: 638 Days

Day: 13.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 62,110,767 km

• M1: 151,692 km (0.112 R)
• M2: 554,410 km (0.108 R)
• M3: 986,448 km (0.09 R)
• M4: 1,500,317 km (0.07 R)
• M5: 1,903,334 km (0.104 R)
• M6: 2,458,043 km (0.063 R)
• M7: 3,262,580 km (0.081 R)
• M8: 3,951,179 km (0.049 R)
• M9: 5,851,670 km (0.039 R)
• M10: 6,511,696 km (0.058 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 293.7

Radius: 12.8

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.95 AU - 1.09 AU

Year: 699 Days

Day: 12.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,110,767 km

• M1: 159,172 km (0.102 R)
• M2: 592,258 km (0.086 R)
• M3: 1,013,526 km (0.111 R)
• M4: 1,624,334 km (0.065 R)
• M5: 2,760,230 km (0.11 R)
• M6: 3,586,459 km (0.086 R)
• M7: 4,132,791 km (0.101 R)
• M8: 4,855,348 km (0.115 R)
• M9: 5,643,729 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472

Radius: 13

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.08 AU - 1.36 AU

Year: 914 Days

Day: 10.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,110,767 km

• M1: 161,715 km (0.101 R)
• M2: 616,942 km (0.115 R)
• M3: 1,082,191 km (0.089 R)
• M4: 1,541,157 km (0.104 R)
• M5: 1,955,095 km (0.049 R)
• M6: 2,530,149 km (0.084 R)
• M7: 3,140,209 km (0.066 R)
• M8: 3,803,526 km (0.085 R)
• M9: 4,364,817 km (0.103 R)
• M10: 4,894,394 km (0.049 R)
• M11: 5,504,005 km (0.048 R)
• M12: 6,471,454 km (0.049 R)
• M13: 7,207,027 km (0.1 R)
• M14: 8,094,591 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.3

Radius: 10.2

Gravity: 7.16 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.33 AU - 1.61 AU

Year: 1209 Days

Day: 12.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 62,110,767 km

• M1: 129,402 km (0.11 R)
• M2: 567,275 km (0.05 R)
• M3: 919,129 km (0.106 R)
• M4: 1,341,444 km (0.062 R)
• M5: 1,690,306 km (0.104 R)
• M6: 2,453,704 km (0.045 R)
• M7: 2,955,456 km (0.091 R)
• M8: 3,297,436 km (0.114 R)
• M9: 4,341,480 km (0.043 R)
• M10: 5,529,137 km (0.118 R)
• M11: 5,940,083 km (0.064 R)
• M12: 6,535,482 km (0.092 R)
• M13: 6,896,911 km (0.086 R)
• M14: 10,127,626 km (0.116 R)
• M15: 11,981,443 km (0.04 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.6

Radius: 8.9

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 4.17 AU - 4.43 AU

Year: 6048 Days

Day: 13.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,110,767 km

• M1: 111,151 km (0.06 R)
• M2: 576,999 km (0.091 R)
• M3: 1,038,957 km (0.09 R)
• M4: 1,852,620 km (0.116 R)
• M5: 2,459,987 km (0.117 R)
• M6: 3,455,711 km (0.114 R)
• M7: 3,976,162 km (0.077 R)
• M8: 5,011,828 km (0.116 R)
• M9: 5,310,724 km (0.116 R)
• M10: 5,650,461 km (0.059 R)
• M11: 6,404,883 km (0.039 R)
• M12: 7,055,484 km (0.066 R)
• M13: 9,354,205 km (0.07 R)
• M14: 9,766,796 km (0.086 R)
• M15: 10,321,355 km (0.12 R)
• M16: 11,681,051 km (0.083 R)
• M17: 12,257,152 km (0.113 R)
• M18: 17,197,622 km (0.057 R)
• M19: 18,970,356 km (0.109 R)
• M20: 22,214,685 km (0.099 R)
• M21: 23,474,000 km (0.081 R)
• M22: 24,468,527 km (0.116 R)
• M23: 27,285,754 km (0.076 R)
• M24: 28,384,999 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 454.7

Radius: 3.8

Gravity: 31.49 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 5.2 AU - 8.64 AU

Year: 12347 Days

Day: 20.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 62,110,767 km

• M1: 47,273 km (0.115 R)
• M2: 184,903 km (0.076 R)
• M3: 304,880 km (0.113 R)
• M4: 492,476 km (0.119 R)
• M5: 655,388 km (0.051 R)
• M6: 789,428 km (0.104 R)
• M7: 931,845 km (0.108 R)
• M8: 1,195,736 km (0.076 R)
• M9: 1,549,834 km (0.105 R)
• M10: 1,936,844 km (0.062 R)
• M11: 2,055,924 km (0.063 R)
• M12: 2,327,892 km (0.062 R)
• M13: 2,877,066 km (0.118 R)
• M14: 3,101,014 km (0.116 R)
• M15: 3,711,822 km (0.072 R)
• M16: 4,635,739 km (0.113 R)
• M17: 4,757,212 km (0.118 R)
• M18: 5,363,981 km (0.119 R)
• M19: 5,531,830 km (0.063 R)
• M20: 6,807,002 km (0.074 R)
• M21: 7,829,504 km (0.116 R)
• M22: 9,671,951 km (0.096 R)
• M23: 11,449,473 km (0.117 R)
• M24: 11,784,273 km (0.084 R)
• M25: 12,590,755 km (0.036 R)
• M26: 13,128,260 km (0.073 R)
• M27: 15,499,387 km (0.105 R)
• M28: 20,573,148 km (0.027 R)
• M29: 20,819,536 km (0.068 R)
• M30: 21,739,563 km (0.058 R)
• M31: 23,840,216 km (0.092 R)
• M32: 28,541,479 km (0.068 R)
• M33: 29,156,475 km (0.099 R)
• M34: 31,054,274 km (0.119 R)
• M35: 31,595,669 km (0.081 R)
• M36: 33,032,855 km (0.065 R)
• M37: 35,327,986 km (0.109 R)
• M38: 35,799,518 km (0.117 R)
• M39: 39,092,018 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 339

Radius: 7.2

Gravity: 6.54 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 8.4 AU - 11.3 AU

Year: 20967 Days

Day: 16.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 62,110,767 km

• M1: 89,609 km (0.067 R)
• M2: 394,190 km (0.118 R)
• M3: 663,915 km (0.069 R)
• M4: 1,058,555 km (0.06 R)
• M5: 1,407,716 km (0.105 R)
• M6: 2,084,048 km (0.102 R)
• M7: 2,794,488 km (0.08 R)
• M8: 3,282,327 km (0.043 R)
• M9: 3,601,419 km (0.092 R)
• M10: 3,911,835 km (0.049 R)
• M11: 4,458,615 km (0.103 R)
• M12: 5,055,211 km (0.1 R)
• M13: 5,666,169 km (0.097 R)
• M14: 7,121,457 km (0.12 R)
• M15: 10,019,317 km (0.096 R)
• M16: 11,335,330 km (0.069 R)
• M17: 12,957,420 km (0.075 R)
• M18: 13,219,964 km (0.066 R)
• M19: 15,304,311 km (0.114 R)
• M20: 16,196,064 km (0.12 R)
• M21: 20,199,452 km (0.114 R)
• M22: 22,570,130 km (0.093 R)
• M23: 23,724,427 km (0.063 R)
• M24: 24,019,135 km (0.098 R)
• M25: 26,254,726 km (0.098 R)
• M26: 27,315,374 km (0.113 R)
• M27: 35,042,254 km (0.059 R)
• M28: 43,225,706 km (0.115 R)
• M29: 44,852,434 km (0.049 R)
• M30: 47,290,729 km (0.094 R)
• M31: 51,767,894 km (0.063 R)
• M32: 55,477,922 km (0.115 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: 521 - 15,673 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit