🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.45 AU - 0.65 AU

Year: 150 Days

Day: 29.7 Hours

Environment

Temp: 236 °C

Axial Tilt: 5.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.61

Radius: 0.82

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.64 AU - 0.74 AU

Year: 211 Days

Day: 17.4 Hours

Environment

Temp: 129 °C

Axial Tilt: 28.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 101,091,038 km

• M1: 21,093 km (0.036 R)
• M2: 144,661 km (0.072 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.14 AU - 1.4 AU

Year: 528 Days

Day: 30.3 Hours

Environment

Temp: -11 °C

Axial Tilt: 2.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.71

Radius: 0.87

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.3 AU - 1.88 AU

Year: 740 Days

Day: 39.6 Hours

Environment

Temp: -51 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.64 AU - 1.74 AU

Year: 811 Days

Day: 29.9 Hours

Environment

Temp: -58 °C

Axial Tilt: 41.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.36 AU - 3.28 AU

Year: 1747 Days

Day: 34.5 Hours

Environment

Temp: -94 °C

Axial Tilt: 15.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 828

Radius: 9.5

Gravity: 9.17 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 5.33 AU - 6.87 AU

Year: 5559 Days

Day: 11 Hours

Environment

Temp: -151 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 101,091,038 km

• M1: 141,520 km (0.053 R)
• M2: 542,143 km (0.09 R)
• M3: 897,886 km (0.114 R)
• M4: 2,238,283 km (0.086 R)
• M5: 3,712,570 km (0.114 R)
• M6: 5,096,051 km (0.104 R)
• M7: 8,198,412 km (0.076 R)
• M8: 8,884,917 km (0.085 R)
• M9: 9,306,334 km (0.083 R)
• M10: 11,030,749 km (0.099 R)
• M11: 13,666,364 km (0.099 R)
• M12: 15,946,086 km (0.104 R)
• M13: 17,079,290 km (0.088 R)
• M14: 17,468,693 km (0.088 R)
• M15: 18,400,239 km (0.079 R)
• M16: 20,362,514 km (0.082 R)
• M17: 21,999,115 km (0.08 R)
• M18: 22,927,968 km (0.072 R)
• M19: 24,698,309 km (0.091 R)
• M20: 30,936,092 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 671.1

Radius: 7.1

Gravity: 13.31 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 14.39 AU - 23.93 AU

Year: 30944 Days

Day: 22.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 101,091,038 km

• M1: 88,412 km (0.027 R)
• M2: 359,484 km (0.03 R)
• M3: 933,192 km (0.095 R)
• M4: 1,238,820 km (0.091 R)
• M5: 1,537,567 km (0.073 R)
• M6: 1,843,046 km (0.097 R)
• M7: 2,788,205 km (0.115 R)
• M8: 3,336,332 km (0.049 R)
• M9: 3,587,656 km (0.12 R)
• M10: 4,058,141 km (0.055 R)
• M11: 4,722,506 km (0.102 R)
• M12: 6,408,174 km (0.086 R)
• M13: 9,855,508 km (0.088 R)
• M14: 11,469,070 km (0.116 R)
• M15: 12,264,632 km (0.101 R)
• M16: 12,713,575 km (0.081 R)
• M17: 14,454,595 km (0.061 R)
• M18: 14,871,375 km (0.049 R)
• M19: 21,795,961 km (0.105 R)
• M20: 22,565,941 km (0.082 R)
• M21: 23,126,933 km (0.07 R)
• M22: 24,393,728 km (0.09 R)
• M23: 25,343,674 km (0.112 R)
• M24: 25,706,300 km (0.09 R)
• M25: 32,837,630 km (0.066 R)
• M26: 34,732,287 km (0.085 R)
• M27: 40,521,276 km (0.054 R)
• M28: 42,358,787 km (0.105 R)
• M29: 43,556,766 km (0.089 R)
• M30: 44,777,036 km (0.089 R)
• M31: 46,921,671 km (0.113 R)
• M32: 57,631,832 km (0.096 R)
• M33: 64,331,722 km (0.034 R)
• M34: 69,153,710 km (0.065 R)
• M35: 71,292,062 km (0.11 R)
• M36: 71,532,316 km (0.032 R)
• M37: 77,716,543 km (0.11 R)
• M38: 79,252,015 km (0.083 R)
• M39: 83,178,959 km (0.096 R)
• M40: 87,233,660 km (0.114 R)
• M41: 96,320,085 km (0.078 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 511 - 18,059 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit