🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.7

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.5 AU - 0.74 AU

Year: 320 Days

Day: 35.4 Hours

Environment

Temp: -140 °C

Axial Tilt: 1.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.1

Radius: 11.7

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.77 AU - 0.83 AU

Year: 469 Days

Day: 11.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 83,813,347 km

• M1: 161,715 km (0.109 R)
• M2: 579,243 km (0.066 R)
• M3: 1,240,615 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.5

Radius: 10.8

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 1.05 AU - 1.13 AU

Year: 747 Days

Day: 7 Hours

Environment

Temp: -161 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 83,813,347 km

• M1: 154,385 km (0.1 R)
• M2: 990,039 km (0.113 R)
• M3: 1,420,282 km (0.098 R)
• M4: 2,182,483 km (0.062 R)
• M5: 2,925,686 km (0.057 R)
• M6: 3,386,746 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 232.9

Radius: 12.2

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.97 AU - 3.13 AU

Year: 2671 Days

Day: 11.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 83,813,347 km

• M1: 151,692 km (0.099 R)
• M2: 588,967 km (0.079 R)
• M3: 1,083,837 km (0.056 R)
• M4: 1,540,559 km (0.055 R)
• M5: 2,312,783 km (0.106 R)
• M6: 2,829,494 km (0.078 R)
• M7: 5,231,886 km (0.095 R)
• M8: 6,589,936 km (0.105 R)
• M9: 7,445,486 km (0.064 R)
• M10: 7,914,475 km (0.054 R)
• M11: 11,993,261 km (0.097 R)
• M12: 12,911,643 km (0.098 R)
• M13: 13,428,354 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954

Radius: 13.1

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 3.47 AU - 3.99 AU

Year: 4726 Days

Day: 6.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 83,813,347 km

• M1: 162,912 km (0.049 R)
• M2: 744,100 km (0.104 R)
• M3: 1,501,364 km (0.1 R)
• M4: 2,357,513 km (0.104 R)
• M5: 2,786,260 km (0.096 R)
• M6: 3,736,506 km (0.069 R)
• M7: 4,374,092 km (0.104 R)
• M8: 6,022,062 km (0.103 R)
• M9: 7,072,987 km (0.116 R)
• M10: 7,715,959 km (0.111 R)
• M11: 10,778,227 km (0.115 R)
• M12: 14,236,033 km (0.118 R)
• M13: 15,146,186 km (0.073 R)
• M14: 17,145,562 km (0.087 R)
• M15: 21,149,249 km (0.07 R)
• M16: 25,407,104 km (0.096 R)
• M17: 26,660,734 km (0.082 R)
• M18: 28,662,503 km (0.105 R)
• M19: 29,837,295 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 682.8

Radius: 5.4

Gravity: 23.42 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 6.51 AU - 7.43 AU

Year: 12071 Days

Day: 23.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 83,813,347 km

• M1: 70,161 km (0.05 R)
• M2: 507,436 km (0.107 R)
• M3: 894,146 km (0.114 R)
• M4: 1,170,304 km (0.08 R)
• M5: 1,810,583 km (0.091 R)
• M6: 2,051,136 km (0.092 R)
• M7: 3,065,709 km (0.11 R)
• M8: 3,668,738 km (0.059 R)
• M9: 3,914,228 km (0.067 R)
• M10: 4,591,757 km (0.068 R)
• M11: 6,252,443 km (0.105 R)
• M12: 6,925,933 km (0.084 R)
• M13: 7,216,900 km (0.039 R)
• M14: 8,002,588 km (0.09 R)
• M15: 8,509,875 km (0.112 R)
• M16: 10,267,201 km (0.097 R)
• M17: 12,373,389 km (0.081 R)
• M18: 13,240,309 km (0.064 R)
• M19: 13,688,654 km (0.111 R)
• M20: 17,723,458 km (0.091 R)
• M21: 17,955,484 km (0.094 R)
• M22: 21,158,524 km (0.057 R)
• M23: 21,507,087 km (0.036 R)
• M24: 22,666,621 km (0.12 R)
• M25: 25,206,792 km (0.072 R)
• M26: 26,494,830 km (0.037 R)
• M27: 28,034,940 km (0.101 R)
• M28: 28,349,993 km (0.111 R)
• M29: 29,417,224 km (0.049 R)
• M30: 31,744,967 km (0.102 R)
• M31: 32,087,247 km (0.055 R)
• M32: 38,031,369 km (0.108 R)
• M33: 38,288,528 km (0.096 R)
• M34: 40,923,545 km (0.108 R)
• M35: 43,116,799 km (0.096 R)
• M36: 45,531,458 km (0.087 R)
• M37: 46,698,471 km (0.079 R)
• M38: 47,289,383 km (0.07 R)
• M39: 50,473,574 km (0.105 R)
• M40: 54,121,667 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 657.1

Radius: 4.6

Gravity: 31.05 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 10.3 AU - 11.5 AU

Year: 23607 Days

Day: 19.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 83,813,347 km

• M1: 57,146 km (0.025 R)
• M2: 339,886 km (0.079 R)
• M3: 1,244,205 km (0.119 R)
• M4: 1,799,064 km (0.117 R)
• M5: 2,480,632 km (0.115 R)
• M6: 3,149,933 km (0.11 R)
• M7: 3,349,197 km (0.077 R)
• M8: 3,710,177 km (0.037 R)
• M9: 4,063,377 km (0.119 R)
• M10: 4,836,948 km (0.058 R)
• M11: 6,396,506 km (0.051 R)
• M12: 8,864,571 km (0.096 R)
• M13: 9,436,185 km (0.037 R)
• M14: 10,464,072 km (0.099 R)
• M15: 13,916,192 km (0.105 R)
• M16: 22,323,593 km (0.089 R)
• M17: 23,378,706 km (0.116 R)
• M18: 29,156,475 km (0.056 R)
• M19: 30,034,465 km (0.098 R)
• M20: 31,842,954 km (0.103 R)
• M21: 32,506,121 km (0.08 R)
• M22: 37,115,232 km (0.066 R)
• M23: 42,940,423 km (0.116 R)
• M24: 43,749,448 km (0.083 R)
• M25: 49,346,054 km (0.094 R)
• M26: 49,522,730 km (0.087 R)
• M27: 50,233,619 km (0.119 R)
• M28: 59,501,655 km (0.106 R)
• M29: 61,933,219 km (0.028 R)
• M30: 63,173,386 km (0.099 R)
• M31: 63,590,464 km (0.109 R)
• M32: 72,778,467 km (0.09 R)
• M33: 73,466,766 km (0.097 R)
• M34: 77,448,762 km (0.063 R)
• M35: 77,687,371 km (0.095 R)
• M36: 79,856,989 km (0.029 R)
• M37: 80,100,534 km (0.025 R)
• M38: 80,589,121 km (0.077 R)
• M39: 82,314,732 km (0.065 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: 525 - 11,395 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit