🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.04 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 2.02 AU - 2.14 AU

Year: 1130 Days

Day: 45.4 Hours

Environment

Temp: -70 °C

Axial Tilt: 0.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Ice Giant

Semi-Major Axis: 14.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 747.4

Radius: 3.2

Gravity: 72.99 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 10.89 AU - 17.95 AU

Year: 20629 Days

Day: 23.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 53,742,041 km

• M1: 40,092 km (0.116 R)
• M2: 143,315 km (0.108 R)
• M3: 3,071,693 km (0.052 R)
• M4: 3,990,673 km (0.118 R)
• M5: 4,854,301 km (0.07 R)
• M6: 5,468,101 km (0.082 R)
• M7: 9,101,834 km (0.1 R)
• M8: 12,625,312 km (0.106 R)
• M9: 13,629,712 km (0.098 R)
• M10: 19,459,392 km (0.049 R)
• M11: 26,987,157 km (0.097 R)
• M12: 28,525,472 km (0.119 R)
• M13: 29,872,002 km (0.025 R)
• M14: 33,623,917 km (0.09 R)
• M15: 36,528,658 km (0.097 R)
• M16: 46,237,710 km (0.03 R)
• M17: 49,297,734 km (0.093 R)
• M18: 53,583,863 km (0.07 R)
• M19: 54,321,530 km (0.076 R)
• M20: 55,066,079 km (0.053 R)
• M21: 64,328,730 km (0.115 R)
• M22: 76,655,595 km (0.075 R)

Planet 3 - Ice Giant

Semi-Major Axis: 14.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 230

Radius: 4.4

Gravity: 11.88 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 13.34 AU - 16.04 AU

Year: 21211 Days

Day: 23.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 53,742,041 km

• M1: 54,753 km (0.068 R)
• M2: 419,772 km (0.071 R)
• M3: 570,865 km (0.115 R)
• M4: 823,835 km (0.066 R)
• M5: 1,148,313 km (0.073 R)
• M6: 1,872,068 km (0.039 R)
• M7: 3,758,946 km (0.07 R)
• M8: 4,242,895 km (0.109 R)
• M9: 4,767,086 km (0.058 R)
• M10: 7,172,919 km (0.111 R)
• M11: 7,735,855 km (0.102 R)
• M12: 8,900,026 km (0.11 R)
• M13: 9,096,598 km (0.106 R)
• M14: 11,281,774 km (0.103 R)
• M15: 13,924,570 km (0.113 R)
• M16: 17,027,828 km (0.087 R)
• M17: 17,178,922 km (0.117 R)
• M18: 17,560,546 km (0.066 R)
• M19: 18,659,193 km (0.084 R)
• M20: 18,900,494 km (0.057 R)
• M21: 21,341,183 km (0.107 R)
• M22: 21,604,924 km (0.063 R)
• M23: 21,782,048 km (0.081 R)
• M24: 26,836,811 km (0.062 R)
• M25: 29,362,472 km (0.045 R)
• M26: 46,717,321 km (0.087 R)
• M27: 49,122,705 km (0.108 R)

Planet 4 - Ice Giant

Semi-Major Axis: 19.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 98.4

Radius: 7.4

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 16.8 AU - 21.3 AU

Year: 31323 Days

Day: 19.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,742,041 km

• M1: 93,199 km (0.086 R)
• M2: 328,667 km (0.076 R)
• M3: 806,183 km (0.07 R)
• M4: 1,483,412 km (0.102 R)
• M5: 2,392,220 km (0.09 R)
• M6: 3,373,432 km (0.076 R)
• M7: 4,948,398 km (0.03 R)
• M8: 5,382,531 km (0.08 R)
• M9: 6,919,650 km (0.091 R)
• M10: 7,944,395 km (0.034 R)
• M11: 8,872,799 km (0.12 R)
• M12: 14,757,830 km (0.12 R)
• M13: 17,947,406 km (0.07 R)
• M14: 18,180,330 km (0.092 R)
• M15: 18,652,162 km (0.038 R)
• M16: 18,971,254 km (0.086 R)
• M17: 30,768,392 km (0.117 R)
• M18: 39,726,612 km (0.099 R)
• M19: 41,596,735 km (0.089 R)
• M20: 48,905,638 km (0.106 R)
• M21: 50,896,786 km (0.1 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 333 - 16,680 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit