🌌 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: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.46

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.65 AU - 0.81 AU

Year: 222 Days

Day: 38 Hours

Environment

Temp: 126 °C

Axial Tilt: 41.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 77,101,221 km

• M1: 68,516 km (0.07 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.92 AU - 1.42 AU

Year: 451 Days

Day: 38.7 Hours

Environment

Temp: 27 °C

Axial Tilt: 16.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.46

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.12 AU - 1.28 AU

Year: 469 Days

Day: 39.4 Hours

Environment

Temp: 5 °C

Axial Tilt: 32.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 77,101,221 km

• M1: 38,895 km (0.062 R)
• M2: 226,042 km (0.059 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.32 AU - 1.72 AU

Year: 668 Days

Day: 23.2 Hours

Environment

Temp: -28 °C

Axial Tilt: 36.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 77,101,221 km

• M1: 56,398 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.8

Radius: 8.4

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 8.11 AU - 9.27 AU

Year: 9131 Days

Day: 13.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 77,101,221 km

• M1: 105,466 km (0.087 R)
• M2: 651,948 km (0.115 R)
• M3: 1,052,421 km (0.097 R)
• M4: 2,031,988 km (0.119 R)
• M5: 2,523,566 km (0.076 R)
• M6: 3,376,274 km (0.117 R)
• M7: 4,334,150 km (0.059 R)
• M8: 4,690,641 km (0.042 R)
• M9: 6,381,247 km (0.082 R)
• M10: 7,909,539 km (0.104 R)
• M11: 8,600,082 km (0.062 R)
• M12: 9,041,546 km (0.118 R)
• M13: 9,540,155 km (0.117 R)
• M14: 10,145,129 km (0.084 R)
• M15: 10,638,054 km (0.04 R)
• M16: 12,566,371 km (0.08 R)
• M17: 15,232,504 km (0.096 R)
• M18: 17,416,483 km (0.06 R)
• M19: 18,123,483 km (0.094 R)
• M20: 20,009,314 km (0.089 R)
• M21: 20,999,652 km (0.117 R)
• M22: 21,800,449 km (0.115 R)
• M23: 25,370,901 km (0.093 R)
• M24: 25,781,099 km (0.067 R)
• M25: 26,446,510 km (0.088 R)
• M26: 28,599,971 km (0.12 R)
• M27: 28,955,117 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 785.3

Radius: 3.6

Gravity: 60.59 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 12.03 AU - 16.35 AU

Year: 19053 Days

Day: 16.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 77,101,221 km

• M1: 45,029 km (0.055 R)
• M2: 188,194 km (0.114 R)
• M3: 616,194 km (0.077 R)
• M4: 1,019,509 km (0.115 R)
• M5: 1,612,665 km (0.109 R)
• M6: 2,167,224 km (0.075 R)
• M7: 2,739,137 km (0.082 R)
• M8: 3,377,022 km (0.102 R)
• M9: 4,011,617 km (0.102 R)
• M10: 5,433,694 km (0.081 R)
• M11: 6,608,785 km (0.031 R)
• M12: 7,113,528 km (0.111 R)
• M13: 11,258,885 km (0.104 R)
• M14: 12,795,255 km (0.075 R)
• M15: 13,722,613 km (0.086 R)
• M16: 15,951,172 km (0.085 R)
• M17: 17,449,245 km (0.101 R)
• M18: 18,056,313 km (0.066 R)
• M19: 21,997,469 km (0.068 R)
• M20: 25,029,818 km (0.101 R)
• M21: 30,144,420 km (0.087 R)
• M22: 30,641,234 km (0.113 R)
• M23: 35,636,307 km (0.106 R)
• M24: 38,036,605 km (0.105 R)
• M25: 42,221,157 km (0.089 R)
• M26: 42,999,215 km (0.109 R)
• M27: 47,367,024 km (0.067 R)
• M28: 51,843,740 km (0.113 R)
• M29: 57,539,829 km (0.1 R)
• M30: 58,112,340 km (0.05 R)
• M31: 59,852,313 km (0.053 R)
• M32: 67,794,165 km (0.082 R)
• M33: 70,154,819 km (0.076 R)
• M34: 73,014,682 km (0.055 R)
• M35: 73,461,381 km (0.102 R)
• M36: 75,494,266 km (0.1 R)

Kuiper Belt

Range: 30.8 - 59.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 271 - 12,013 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit