🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 0.53 AU - 0.87 AU

Year: 259 Days

Day: 46.9 Hours

Environment

Temp: -18 °C

Axial Tilt: 46.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.98

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.85 AU - 0.89 AU

Year: 359 Days

Day: 34 Hours

Environment

Temp: -45 °C

Axial Tilt: 34.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.47

Radius: 1.17

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.27 AU - 2.03 AU

Year: 939 Days

Day: 22.4 Hours

Environment

Temp: -118 °C

Axial Tilt: 44.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 73,220,661 km

• M1: 27,676 km (0.112 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.22 AU - 2.5 AU

Year: 1606 Days

Day: 39.8 Hours

Environment

Temp: -139 °C

Axial Tilt: 26.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 918.6

Radius: 12.8

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.1 AU - 4.52 AU

Year: 3294 Days

Day: 8.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,220,661 km

• M1: 159,471 km (0.113 R)
• M2: 668,852 km (0.117 R)
• M3: 1,092,663 km (0.065 R)
• M4: 2,221,229 km (0.088 R)
• M5: 4,350,007 km (0.104 R)
• M6: 5,174,590 km (0.112 R)
• M7: 5,929,760 km (0.101 R)
• M8: 7,166,935 km (0.095 R)
• M9: 8,752,074 km (0.073 R)
• M10: 9,239,763 km (0.113 R)
• M11: 9,904,875 km (0.101 R)
• M12: 11,418,955 km (0.074 R)
• M13: 12,652,090 km (0.105 R)
• M14: 13,671,151 km (0.113 R)
• M15: 14,226,309 km (0.101 R)
• M16: 22,812,030 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54

Radius: 8.2

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.92 AU - 5.46 AU

Year: 4499 Days

Day: 13.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 73,220,661 km

• M1: 102,026 km (0.095 R)
• M2: 393,742 km (0.083 R)
• M3: 806,333 km (0.104 R)
• M4: 1,149,211 km (0.093 R)
• M5: 1,774,680 km (0.111 R)
• M6: 2,191,908 km (0.095 R)
• M7: 2,817,825 km (0.083 R)
• M8: 3,897,473 km (0.103 R)
• M9: 4,188,441 km (0.056 R)
• M10: 4,493,920 km (0.105 R)
• M11: 5,190,149 km (0.084 R)
• M12: 5,889,818 km (0.097 R)
• M13: 7,118,016 km (0.112 R)
• M14: 7,424,094 km (0.118 R)
• M15: 10,263,611 km (0.099 R)
• M16: 10,921,093 km (0.095 R)
• M17: 11,782,029 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 836.6

Radius: 5.4

Gravity: 28.69 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 8.78 AU - 13.14 AU

Year: 16071 Days

Day: 17.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 73,220,661 km

• M1: 68,815 km (0.101 R)
• M2: 354,846 km (0.111 R)
• M3: 967,001 km (0.115 R)
• M4: 1,464,862 km (0.061 R)
• M5: 2,325,648 km (0.1 R)
• M6: 2,660,449 km (0.056 R)
• M7: 2,851,934 km (0.09 R)
• M8: 3,026,963 km (0.037 R)
• M9: 3,343,812 km (0.1 R)
• M10: 4,872,253 km (0.07 R)
• M11: 5,196,432 km (0.079 R)
• M12: 8,329,759 km (0.102 R)
• M13: 8,688,944 km (0.112 R)
• M14: 9,999,271 km (0.094 R)
• M15: 10,346,338 km (0.081 R)
• M16: 11,751,810 km (0.101 R)
• M17: 12,073,446 km (0.087 R)
• M18: 13,912,303 km (0.053 R)
• M19: 14,272,235 km (0.088 R)
• M20: 15,929,929 km (0.083 R)
• M21: 17,628,164 km (0.118 R)
• M22: 17,880,237 km (0.095 R)
• M23: 18,049,581 km (0.057 R)
• M24: 19,088,539 km (0.064 R)
• M25: 21,284,785 km (0.037 R)
• M26: 21,955,731 km (0.043 R)
• M27: 24,156,316 km (0.115 R)
• M28: 26,609,721 km (0.119 R)
• M29: 29,577,444 km (0.105 R)
• M30: 35,622,395 km (0.117 R)
• M31: 36,703,838 km (0.047 R)
• M32: 40,661,300 km (0.111 R)
• M33: 45,521,585 km (0.099 R)
• M34: 50,755,266 km (0.11 R)
• M35: 57,290,001 km (0.09 R)
• M36: 58,960,111 km (0.086 R)
• M37: 62,592,198 km (0.102 R)
• M38: 64,165,070 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.05 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 560

Radius: 6.7

Gravity: 12.47 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 10.81 AU - 15.29 AU

Year: 20881 Days

Day: 19.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 73,220,661 km

• M1: 83,326 km (0.068 R)
• M2: 584,928 km (0.068 R)
• M3: 872,754 km (0.064 R)
• M4: 1,172,099 km (0.103 R)
• M5: 3,165,641 km (0.061 R)
• M6: 3,818,037 km (0.098 R)
• M7: 5,348,573 km (0.119 R)
• M8: 9,170,798 km (0.062 R)
• M9: 11,472,362 km (0.097 R)
• M10: 11,857,576 km (0.113 R)
• M11: 13,556,709 km (0.117 R)
• M12: 17,939,178 km (0.119 R)
• M13: 22,676,644 km (0.071 R)
• M14: 35,058,411 km (0.111 R)
• M15: 42,815,808 km (0.094 R)
• M16: 69,765,865 km (0.093 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 420 - 19,477 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit