🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.72 AU - 0.76 AU

Year: 240 Days

Day: 46.4 Hours

Environment

Temp: 97 °C

Axial Tilt: 15.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.14

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.79 AU - 0.87 AU

Year: 285 Days

Day: 48 Hours

Environment

Temp: 123 °C

Axial Tilt: 26.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.68 AU - 1.08 AU

Year: 311 Days

Day: 24.6 Hours

Environment

Temp: 28 °C

Axial Tilt: 1.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.17

Radius: 1.06

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.05 AU - 1.46 AU

Year: 526 Days

Day: 37.5 Hours

Environment

Temp: -30 °C

Axial Tilt: 6.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.39 AU - 1.55 AU

Year: 671 Days

Day: 32.8 Hours

Environment

Temp: -44 °C

Axial Tilt: 11.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 3.88 AU - 4.38 AU

Year: 3162 Days

Day: 26.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 26.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.4

Radius: 9.7

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 3.53 AU - 5.71 AU

Year: 3741 Days

Day: 14.5 Hours

Environment

Temp: -133 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 49,540,263 km

• M1: 120,875 km (0.035 R)
• M2: 1,337,555 km (0.076 R)
• M3: 1,937,143 km (0.091 R)
• M4: 2,691,864 km (0.068 R)
• M5: 3,897,174 km (0.1 R)
• M6: 4,533,414 km (0.077 R)
• M7: 5,261,208 km (0.115 R)
• M8: 6,607,289 km (0.071 R)
• M9: 7,634,428 km (0.104 R)
• M10: 9,037,955 km (0.096 R)
• M11: 11,353,880 km (0.11 R)
• M12: 12,476,313 km (0.053 R)
• M13: 13,946,860 km (0.111 R)
• M14: 14,509,198 km (0.072 R)
• M15: 15,381,055 km (0.092 R)
• M16: 18,151,009 km (0.072 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.6

Radius: 10.2

Gravity: 4.04 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 8.31 AU - 12.75 AU

Year: 12873 Days

Day: 7.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 49,540,263 km

• M1: 126,859 km (0.109 R)
• M2: 735,124 km (0.027 R)
• M3: 1,182,422 km (0.09 R)
• M4: 1,747,154 km (0.045 R)
• M5: 2,426,777 km (0.108 R)
• M6: 3,321,073 km (0.057 R)
• M7: 4,596,694 km (0.062 R)
• M8: 6,656,357 km (0.116 R)
• M9: 8,302,532 km (0.094 R)
• M10: 10,669,470 km (0.104 R)
• M11: 12,207,336 km (0.08 R)
• M12: 12,672,585 km (0.081 R)
• M13: 13,763,004 km (0.049 R)
• M14: 14,267,149 km (0.087 R)
• M15: 15,717,500 km (0.118 R)
• M16: 19,297,078 km (0.082 R)
• M17: 19,769,807 km (0.116 R)
• M18: 22,422,327 km (0.062 R)
• M19: 25,680,270 km (0.095 R)
• M20: 26,156,440 km (0.059 R)
• M21: 27,224,718 km (0.092 R)
• M22: 27,819,519 km (0.043 R)
• M23: 28,932,527 km (0.096 R)
• M24: 29,448,042 km (0.074 R)
• M25: 33,569,164 km (0.085 R)
• M26: 35,531,289 km (0.025 R)
• M27: 36,841,019 km (0.084 R)
• M28: 43,605,236 km (0.114 R)
• M29: 44,147,080 km (0.089 R)
• M30: 44,693,411 km (0.077 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 399.4

Radius: 5.6

Gravity: 12.74 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 11.97 AU - 13.89 AU

Year: 17516 Days

Day: 15.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 87.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 49,540,263 km

• M1: 71,508 km (0.094 R)
• M2: 355,145 km (0.091 R)
• M3: 647,160 km (0.118 R)
• M4: 988,692 km (0.093 R)
• M5: 1,188,256 km (0.096 R)
• M6: 1,903,483 km (0.105 R)
• M7: 2,561,415 km (0.066 R)
• M8: 3,386,148 km (0.12 R)
• M9: 4,531,020 km (0.041 R)
• M10: 4,755,118 km (0.102 R)
• M11: 5,225,603 km (0.119 R)
• M12: 6,907,083 km (0.078 R)
• M13: 11,003,372 km (0.069 R)
• M14: 11,292,096 km (0.064 R)
• M15: 11,467,724 km (0.056 R)
• M16: 12,560,237 km (0.042 R)
• M17: 14,190,256 km (0.104 R)
• M18: 15,809,952 km (0.063 R)
• M19: 16,252,013 km (0.083 R)
• M20: 16,930,290 km (0.05 R)
• M21: 20,520,639 km (0.059 R)
• M22: 21,312,909 km (0.113 R)
• M23: 22,492,788 km (0.105 R)
• M24: 29,937,227 km (0.076 R)
• M25: 30,273,971 km (0.095 R)
• M26: 31,415,104 km (0.116 R)
• M27: 31,762,919 km (0.077 R)
• M28: 35,384,085 km (0.09 R)
• M29: 39,539,764 km (0.092 R)
• M30: 43,720,576 km (0.031 R)
• M31: 46,215,719 km (0.042 R)
• M32: 50,688,396 km (0.118 R)
• M33: 52,783,814 km (0.117 R)
• M34: 53,770,262 km (0.092 R)
• M35: 56,289,640 km (0.101 R)

Planet 10 - Ice Giant

Semi-Major Axis: 12.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 246.5

Radius: 7.1

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 11.71 AU - 14.15 AU

Year: 17516 Days

Day: 17.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 49,540,263 km

• M1: 88,412 km (0.101 R)
• M2: 348,862 km (0.102 R)
• M3: 730,038 km (0.103 R)
• M4: 1,294,321 km (0.045 R)
• M5: 1,865,485 km (0.048 R)
• M6: 2,633,970 km (0.105 R)
• M7: 3,021,727 km (0.106 R)
• M8: 3,446,885 km (0.088 R)
• M9: 4,158,821 km (0.074 R)
• M10: 4,416,728 km (0.116 R)
• M11: 4,933,139 km (0.042 R)
• M12: 5,222,611 km (0.096 R)
• M13: 5,942,027 km (0.074 R)
• M14: 7,122,205 km (0.101 R)
• M15: 7,788,963 km (0.038 R)
• M16: 9,538,659 km (0.09 R)
• M17: 10,557,720 km (0.058 R)
• M18: 11,093,580 km (0.098 R)
• M19: 14,176,642 km (0.112 R)
• M20: 16,404,454 km (0.104 R)
• M21: 17,564,286 km (0.088 R)
• M22: 19,564,110 km (0.067 R)
• M23: 23,465,623 km (0.052 R)
• M24: 24,010,009 km (0.068 R)
• M25: 26,662,230 km (0.057 R)
• M26: 27,354,569 km (0.095 R)
• M27: 30,672,799 km (0.064 R)
• M28: 31,983,426 km (0.037 R)
• M29: 33,903,515 km (0.103 R)
• M30: 37,476,810 km (0.095 R)
• M31: 37,847,513 km (0.11 R)
• M32: 39,865,289 km (0.086 R)
• M33: 40,510,355 km (0.113 R)
• M34: 42,219,960 km (0.045 R)
• M35: 42,890,158 km (0.09 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 520 - 11,369 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit