🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.78 AU - 1.24 AU

Year: 367 Days

Day: 36.1 Hours

Environment

Temp: 42 °C

Axial Tilt: 14.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.45

Radius: 1.16

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.97 AU - 1.31 AU

Year: 440 Days

Day: 30.6 Hours

Environment

Temp: 21 °C

Axial Tilt: 44.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.26

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.92 AU - 1.4 AU

Year: 452 Days

Day: 17.4 Hours

Environment

Temp: 7 °C

Axial Tilt: 10.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.3

Radius: 0.62

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.55 AU - 1.71 AU

Year: 753 Days

Day: 25.5 Hours

Environment

Temp: -36 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.27

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 3.06 AU - 4.02 AU

Year: 2409 Days

Day: 22.2 Hours

Environment

Temp: -123 °C

Axial Tilt: 45 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 3.11 AU - 4.83 AU

Year: 2861 Days

Day: 45.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 1.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 43,711,863 km

• M1: 620,382 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 522.5

Radius: 13.2

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 4.63 AU - 5.49 AU

Year: 4116 Days

Day: 14.4 Hours

Environment

Temp: -131 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,711,863 km

• M1: 164,408 km (0.058 R)
• M2: 1,334,712 km (0.049 R)
• M3: 2,842,808 km (0.08 R)
• M4: 3,747,726 km (0.081 R)
• M5: 5,363,383 km (0.07 R)
• M6: 6,415,205 km (0.034 R)
• M7: 7,052,941 km (0.102 R)
• M8: 7,766,224 km (0.104 R)
• M9: 8,779,301 km (0.07 R)
• M10: 9,374,999 km (0.081 R)
• M11: 9,997,476 km (0.114 R)
• M12: 11,239,138 km (0.1 R)
• M13: 13,387,513 km (0.115 R)
• M14: 14,946,622 km (0.094 R)
• M15: 17,946,808 km (0.067 R)
• M16: 18,423,127 km (0.117 R)
• M17: 18,846,789 km (0.074 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.8

Radius: 12.6

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 6.23 AU - 6.27 AU

Year: 5651 Days

Day: 8.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 43,711,863 km

• M1: 156,928 km (0.112 R)
• M2: 552,016 km (0.049 R)
• M3: 1,084,285 km (0.046 R)
• M4: 1,884,933 km (0.08 R)
• M5: 7,427,385 km (0.079 R)
• M6: 9,495,725 km (0.079 R)
• M7: 11,170,323 km (0.116 R)
• M8: 12,181,605 km (0.03 R)
• M9: 13,530,529 km (0.094 R)
• M10: 17,236,966 km (0.088 R)
• M11: 18,038,511 km (0.079 R)
• M12: 19,287,354 km (0.11 R)
• M13: 19,860,464 km (0.083 R)
• M14: 23,703,932 km (0.085 R)
• M15: 26,584,290 km (0.059 R)
• M16: 27,115,811 km (0.032 R)
• M17: 30,454,985 km (0.101 R)
• M18: 35,321,104 km (0.1 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.6

Radius: 9

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 8.57 AU - 11.21 AU

Year: 11248 Days

Day: 6.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 43,711,863 km

• M1: 112,049 km (0.098 R)
• M2: 440,267 km (0.06 R)
• M3: 793,168 km (0.066 R)
• M4: 1,751,043 km (0.076 R)
• M5: 3,116,872 km (0.083 R)
• M6: 3,825,966 km (0.031 R)
• M7: 5,464,361 km (0.077 R)
• M8: 6,242,420 km (0.089 R)
• M9: 6,825,852 km (0.077 R)
• M10: 7,687,087 km (0.113 R)
• M11: 8,143,958 km (0.101 R)
• M12: 8,487,435 km (0.05 R)
• M13: 12,703,851 km (0.046 R)
• M14: 14,187,264 km (0.114 R)
• M15: 18,067,683 km (0.045 R)
• M16: 18,432,103 km (0.1 R)
• M17: 19,175,754 km (0.112 R)
• M18: 20,172,226 km (0.098 R)
• M19: 26,046,186 km (0.109 R)
• M20: 29,220,503 km (0.066 R)
• M21: 29,722,853 km (0.086 R)
• M22: 31,160,339 km (0.098 R)
• M23: 32,536,190 km (0.064 R)
• M24: 35,979,784 km (0.093 R)
• M25: 37,023,229 km (0.097 R)
• M26: 39,049,083 km (0.082 R)
• M27: 39,536,324 km (0.103 R)

Kuiper Belt

Range: 30.3 - 47.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 406 - 16,586 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit