🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.68 AU - 1.04 AU

Year: 299 Days

Day: 24.9 Hours

Environment

Temp: 105 °C

Axial Tilt: 15.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 114,993,720 km

• M1: 449,691 km (0.064 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.45 AU - 2.13 AU

Year: 897 Days

Day: 14.7 Hours

Environment

Temp: -60 °C

Axial Tilt: 46.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 617.3

Radius: 11.3

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 4.89 AU - 7.19 AU

Year: 5563 Days

Day: 11.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 114,993,720 km

• M1: 142,417 km (0.09 R)
• M2: 539,899 km (0.112 R)
• M3: 1,105,678 km (0.062 R)
• M4: 1,732,493 km (0.106 R)
• M5: 2,180,987 km (0.11 R)
• M6: 2,689,022 km (0.096 R)
• M7: 4,084,321 km (0.065 R)
• M8: 5,615,306 km (0.075 R)
• M9: 6,543,261 km (0.078 R)
• M10: 7,044,115 km (0.093 R)
• M11: 7,751,563 km (0.036 R)
• M12: 8,160,564 km (0.097 R)
• M13: 10,029,640 km (0.108 R)
• M14: 11,824,964 km (0.058 R)
• M15: 12,368,004 km (0.083 R)
• M16: 12,979,261 km (0.112 R)
• M17: 13,988,298 km (0.084 R)
• M18: 15,923,197 km (0.113 R)
• M19: 16,463,844 km (0.089 R)
• M20: 17,078,991 km (0.099 R)
• M21: 18,420,734 km (0.098 R)
• M22: 18,883,290 km (0.115 R)
• M23: 22,942,778 km (0.114 R)
• M24: 28,155,217 km (0.082 R)
• M25: 30,206,503 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.3

Radius: 9.7

Gravity: 7.16 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 8.97 AU - 11.19 AU

Year: 11993 Days

Day: 11.4 Hours

Environment

Temp: -175 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 114,993,720 km

• M1: 120,875 km (0.052 R)
• M2: 488,736 km (0.097 R)
• M3: 844,181 km (0.108 R)
• M4: 1,200,822 km (0.04 R)
• M5: 1,526,796 km (0.115 R)
• M6: 2,120,550 km (0.071 R)
• M7: 2,839,517 km (0.101 R)
• M8: 3,739,348 km (0.044 R)
• M9: 4,097,336 km (0.1 R)
• M10: 4,630,802 km (0.079 R)
• M11: 5,110,263 km (0.08 R)
• M12: 7,409,583 km (0.078 R)
• M13: 8,432,533 km (0.056 R)
• M14: 13,478,319 km (0.082 R)
• M15: 15,976,903 km (0.087 R)
• M16: 18,610,424 km (0.102 R)
• M17: 20,660,064 km (0.11 R)
• M18: 22,584,342 km (0.094 R)
• M19: 26,685,418 km (0.063 R)
• M20: 31,145,678 km (0.102 R)
• M21: 32,276,489 km (0.084 R)
• M22: 35,101,794 km (0.107 R)
• M23: 37,452,425 km (0.103 R)
• M24: 38,472,832 km (0.085 R)
• M25: 39,905,980 km (0.059 R)
• M26: 42,602,332 km (0.084 R)
• M27: 46,432,038 km (0.05 R)
• M28: 49,564,916 km (0.058 R)
• M29: 50,949,594 km (0.1 R)

Planet 5 - Ice Giant

Semi-Major Axis: 19.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 918.2

Radius: 7.9

Gravity: 14.71 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 14.9 AU - 23.96 AU

Year: 32095 Days

Day: 21.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 114,993,720 km

• M1: 98,884 km (0.108 R)
• M2: 486,043 km (0.116 R)
• M3: 1,321,697 km (0.115 R)
• M4: 2,334,624 km (0.107 R)
• M5: 3,422,650 km (0.102 R)
• M6: 4,152,687 km (0.056 R)
• M7: 4,534,910 km (0.062 R)
• M8: 5,639,541 km (0.112 R)
• M9: 6,402,789 km (0.102 R)
• M10: 9,043,341 km (0.097 R)
• M11: 9,425,713 km (0.068 R)
• M12: 14,720,281 km (0.06 R)
• M13: 14,983,424 km (0.07 R)
• M14: 15,791,850 km (0.076 R)
• M15: 16,723,995 km (0.091 R)
• M16: 19,634,122 km (0.102 R)
• M17: 21,041,838 km (0.118 R)
• M18: 23,218,637 km (0.063 R)
• M19: 24,057,133 km (0.085 R)
• M20: 25,541,293 km (0.054 R)
• M21: 30,500,612 km (0.087 R)
• M22: 30,785,746 km (0.115 R)
• M23: 35,120,793 km (0.118 R)
• M24: 44,794,539 km (0.116 R)
• M25: 45,533,254 km (0.058 R)
• M26: 49,349,495 km (0.107 R)
• M27: 50,734,023 km (0.094 R)
• M28: 57,177,503 km (0.116 R)
• M29: 59,367,017 km (0.101 R)
• M30: 60,258,322 km (0.097 R)
• M31: 61,839,421 km (0.113 R)
• M32: 70,658,365 km (0.03 R)
• M33: 76,018,457 km (0.072 R)
• M34: 78,931,427 km (0.092 R)
• M35: 91,623,759 km (0.065 R)
• M36: 93,712,893 km (0.064 R)
• M37: 98,606,688 km (0.112 R)
• M38: 102,068,383 km (0.087 R)
• M39: 109,566,528 km (0.045 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 474 - 13,594 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit