🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.03 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 1.57 AU - 2.53 AU

Year: 1255 Days

Day: 27.2 Hours

Environment

Temp: -109 °C

Axial Tilt: 42.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 45,519,917 km

• M1: 110,403 km (0.086 R)
• M2: 287,976 km (0.049 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.27

Radius: 1.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.09 AU - 2.55 AU

Year: 1511 Days

Day: 13.3 Hours

Environment

Temp: -116 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.8

Radius: 10.1

Gravity: 7.94 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 3.14 AU - 3.36 AU

Year: 2505 Days

Day: 11.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,519,917 km

• M1: 125,662 km (0.116 R)
• M2: 593,754 km (0.093 R)
• M3: 919,129 km (0.081 R)
• M4: 1,484,908 km (0.033 R)
• M5: 1,961,527 km (0.109 R)
• M6: 2,749,310 km (0.062 R)
• M7: 3,242,085 km (0.054 R)
• M8: 3,640,165 km (0.025 R)
• M9: 5,371,910 km (0.12 R)
• M10: 6,010,992 km (0.104 R)
• M11: 6,362,996 km (0.117 R)
• M12: 6,844,103 km (0.115 R)
• M13: 7,228,120 km (0.068 R)
• M14: 9,992,839 km (0.053 R)
• M15: 11,363,305 km (0.091 R)
• M16: 12,115,034 km (0.107 R)
• M17: 13,997,723 km (0.064 R)
• M18: 14,812,583 km (0.118 R)
• M19: 15,356,521 km (0.113 R)
• M20: 18,504,209 km (0.083 R)
• M21: 19,780,578 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.3

Radius: 13.7

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 3.38 AU - 3.42 AU

Year: 2680 Days

Day: 10 Hours

Environment

Temp: -159 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,519,917 km

• M1: 171,140 km (0.067 R)
• M2: 611,556 km (0.115 R)
• M3: 1,491,940 km (0.083 R)
• M4: 1,968,558 km (0.097 R)
• M5: 2,561,116 km (0.085 R)
• M6: 3,431,775 km (0.044 R)
• M7: 4,772,920 km (0.085 R)
• M8: 5,416,191 km (0.055 R)
• M9: 6,388,727 km (0.076 R)
• M10: 10,355,165 km (0.117 R)
• M11: 10,958,942 km (0.065 R)
• M12: 12,512,366 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 186.6

Radius: 14.6

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 3.31 AU - 4.61 AU

Year: 3369 Days

Day: 8.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 45,519,917 km

• M1: 181,612 km (0.089 R)
• M2: 659,427 km (0.088 R)
• M3: 1,581,549 km (0.12 R)
• M4: 2,319,964 km (0.076 R)
• M5: 3,359,819 km (0.066 R)
• M6: 4,169,592 km (0.11 R)
• M7: 6,082,799 km (0.089 R)
• M8: 6,654,263 km (0.034 R)
• M9: 7,565,015 km (0.12 R)
• M10: 8,286,525 km (0.106 R)
• M11: 8,865,170 km (0.105 R)
• M12: 9,800,605 km (0.113 R)
• M13: 12,290,961 km (0.089 R)
• M14: 14,384,882 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.1

Radius: 8.5

Gravity: 11.54 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 6.63 AU - 7.87 AU

Year: 8345 Days

Day: 13.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 45,519,917 km

• M1: 106,065 km (0.117 R)
• M2: 495,618 km (0.09 R)
• M3: 812,915 km (0.098 R)
• M4: 1,244,205 km (0.064 R)
• M5: 1,575,116 km (0.064 R)
• M6: 1,900,491 km (0.095 R)
• M7: 2,288,698 km (0.11 R)
• M8: 2,708,918 km (0.112 R)
• M9: 3,459,301 km (0.098 R)
• M10: 4,148,499 km (0.114 R)
• M11: 4,865,372 km (0.101 R)
• M12: 6,360,602 km (0.089 R)
• M13: 7,885,603 km (0.093 R)
• M14: 11,050,795 km (0.078 R)
• M15: 11,640,809 km (0.105 R)
• M16: 11,915,919 km (0.074 R)
• M17: 12,422,009 km (0.053 R)
• M18: 13,416,984 km (0.096 R)
• M19: 13,719,471 km (0.119 R)
• M20: 15,170,122 km (0.106 R)
• M21: 17,000,452 km (0.062 R)
• M22: 17,498,014 km (0.066 R)
• M23: 18,522,311 km (0.049 R)
• M24: 20,770,318 km (0.05 R)
• M25: 22,934,999 km (0.061 R)
• M26: 23,630,330 km (0.077 R)
• M27: 25,337,840 km (0.037 R)
• M28: 26,933,900 km (0.039 R)
• M29: 34,553,817 km (0.025 R)
• M30: 40,152,517 km (0.085 R)
• M31: 43,892,464 km (0.078 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.7

Radius: 12.8

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 6.7 AU - 9.82 AU

Year: 10148 Days

Day: 9.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 45,519,917 km

• M1: 545,733 km (0.061 R)
• M2: 1,365,230 km (0.095 R)
• M3: 1,938,040 km (0.059 R)
• M4: 2,524,763 km (0.106 R)
• M5: 3,652,881 km (0.118 R)
• M6: 4,143,562 km (0.073 R)
• M7: 4,962,461 km (0.086 R)
• M8: 5,922,729 km (0.099 R)
• M9: 6,409,072 km (0.099 R)
• M10: 6,841,260 km (0.071 R)
• M11: 11,204,133 km (0.095 R)
• M12: 12,305,921 km (0.116 R)
• M13: 14,125,181 km (0.095 R)
• M14: 14,860,005 km (0.11 R)
• M15: 18,290,883 km (0.054 R)
• M16: 20,148,440 km (0.088 R)
• M17: 20,653,033 km (0.118 R)
• M18: 22,396,297 km (0.051 R)
• M19: 23,673,564 km (0.036 R)
• M20: 24,141,356 km (0.106 R)
• M21: 26,977,283 km (0.098 R)
• M22: 27,693,857 km (0.108 R)
• M23: 34,008,682 km (0.072 R)
• M24: 34,965,510 km (0.117 R)
• M25: 41,627,552 km (0.107 R)
• M26: 42,446,900 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.4

Radius: 12

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 7.31 AU - 9.33 AU

Year: 10259 Days

Day: 12.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 45,519,917 km

• M1: 153,039 km (0.099 R)
• M2: 1,155,943 km (0.088 R)
• M3: 1,540,559 km (0.093 R)
• M4: 2,638,757 km (0.062 R)
• M5: 5,487,100 km (0.099 R)
• M6: 7,135,968 km (0.104 R)
• M7: 7,989,723 km (0.101 R)
• M8: 9,706,359 km (0.083 R)
• M9: 10,806,202 km (0.075 R)
• M10: 11,279,380 km (0.066 R)
• M11: 11,931,777 km (0.115 R)
• M12: 15,711,367 km (0.113 R)
• M13: 17,799,155 km (0.101 R)
• M14: 29,615,741 km (0.05 R)
• M15: 37,354,439 km (0.111 R)
• M16: 45,112,734 km (0.082 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 518 - 19,917 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit