🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.53

Radius: 1.19

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.04 AU - 1.34 AU

Year: 497 Days

Day: 28.9 Hours

Environment

Temp: -22 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.6

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.37 AU - 1.41 AU

Year: 627 Days

Day: 13.3 Hours

Environment

Temp: -37 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.5 AU - 1.92 AU

Year: 856 Days

Day: 33.1 Hours

Environment

Temp: -61 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.62 AU - 1.94 AU

Year: 909 Days

Day: 22.1 Hours

Environment

Temp: -74 °C

Axial Tilt: 23.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.88 AU - 2.58 AU

Year: 1275 Days

Day: 26.8 Hours

Environment

Temp: -91 °C

Axial Tilt: 22.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.33 AU - 2.89 AU

Year: 1614 Days

Day: 40.3 Hours

Environment

Temp: -113 °C

Axial Tilt: 29.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 222.9

Radius: 12

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 3.68 AU - 5.82 AU

Year: 3964 Days

Day: 15 Hours

Environment

Temp: -153 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 72,370,780 km

• M1: 149,448 km (0.12 R)
• M2: 433,834 km (0.034 R)
• M3: 714,479 km (0.111 R)
• M4: 1,018,612 km (0.072 R)
• M5: 1,251,835 km (0.083 R)
• M6: 2,188,467 km (0.062 R)
• M7: 2,818,723 km (0.098 R)
• M8: 3,071,394 km (0.117 R)
• M9: 3,611,293 km (0.118 R)
• M10: 4,541,791 km (0.115 R)
• M11: 5,141,978 km (0.03 R)
• M12: 5,840,600 km (0.118 R)
• M13: 6,227,759 km (0.062 R)
• M14: 6,734,896 km (0.118 R)
• M15: 7,262,528 km (0.114 R)
• M16: 7,602,564 km (0.08 R)
• M17: 8,258,550 km (0.085 R)
• M18: 8,523,787 km (0.081 R)
• M19: 8,842,730 km (0.041 R)
• M20: 10,045,796 km (0.095 R)
• M21: 10,581,357 km (0.062 R)
• M22: 12,214,367 km (0.082 R)
• M23: 12,567,119 km (0.104 R)
• M24: 12,804,979 km (0.057 R)
• M25: 13,257,214 km (0.061 R)
• M26: 15,112,975 km (0.07 R)
• M27: 16,305,719 km (0.039 R)
• M28: 17,579,096 km (0.076 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.1

Radius: 8.3

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 7.62 AU - 7.86 AU

Year: 8245 Days

Day: 13.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,370,780 km

• M1: 104,120 km (0.08 R)
• M2: 1,060,051 km (0.085 R)
• M3: 1,936,694 km (0.096 R)
• M4: 2,787,607 km (0.082 R)
• M5: 3,129,438 km (0.11 R)
• M6: 3,781,535 km (0.079 R)
• M7: 4,436,774 km (0.071 R)
• M8: 5,954,893 km (0.088 R)
• M9: 6,650,523 km (0.094 R)
• M10: 9,173,790 km (0.091 R)
• M11: 12,207,785 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 750.9

Radius: 3.6

Gravity: 57.94 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 10.12 AU - 15.66 AU

Year: 17719 Days

Day: 22.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (44)

Outer Limit: 72,370,780 km

• M1: 79,736 km (0.095 R)
• M2: 240,404 km (0.057 R)
• M3: 484,847 km (0.045 R)
• M4: 555,158 km (0.078 R)
• M5: 842,236 km (0.086 R)
• M6: 1,051,823 km (0.113 R)
• M7: 2,061,907 km (0.084 R)
• M8: 2,711,013 km (0.096 R)
• M9: 4,280,444 km (0.109 R)
• M10: 5,009,584 km (0.106 R)
• M11: 5,435,190 km (0.106 R)
• M12: 5,715,087 km (0.117 R)
• M13: 6,211,603 km (0.079 R)
• M14: 8,854,100 km (0.088 R)
• M15: 8,955,377 km (0.118 R)
• M16: 10,378,951 km (0.099 R)
• M17: 10,933,061 km (0.086 R)
• M18: 14,110,819 km (0.069 R)
• M19: 18,126,325 km (0.092 R)
• M20: 19,903,698 km (0.051 R)
• M21: 22,003,004 km (0.112 R)
• M22: 23,543,563 km (0.103 R)
• M23: 26,869,124 km (0.115 R)
• M24: 28,297,185 km (0.107 R)
• M25: 29,576,995 km (0.103 R)
• M26: 33,685,401 km (0.11 R)
• M27: 34,279,903 km (0.086 R)
• M28: 35,484,465 km (0.072 R)
• M29: 35,788,897 km (0.059 R)
• M30: 35,890,624 km (0.047 R)
• M31: 37,330,503 km (0.116 R)
• M32: 44,955,207 km (0.08 R)
• M33: 45,183,494 km (0.114 R)
• M34: 45,986,834 km (0.063 R)
• M35: 46,102,324 km (0.072 R)
• M36: 48,203,426 km (0.052 R)
• M37: 48,795,534 km (0.119 R)
• M38: 56,948,618 km (0.1 R)
• M39: 60,862,847 km (0.079 R)
• M40: 67,117,683 km (0.087 R)
• M41: 68,799,612 km (0.11 R)
• M42: 70,217,201 km (0.083 R)
• M43: 70,788,366 km (0.093 R)
• M44: 71,218,161 km (0.039 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 464 - 10,649 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit