🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.03

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.59 AU - 0.61 AU

Year: 176 Days

Day: 26.3 Hours

Environment

Temp: 209 °C

Axial Tilt: 9.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 0.63 AU - 0.69 AU

Year: 203 Days

Day: 33.2 Hours

Environment

Temp: 106 °C

Axial Tilt: 33.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.83 AU - 1.01 AU

Year: 334 Days

Day: 35.7 Hours

Environment

Temp: 31 °C

Axial Tilt: 22.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.93 AU - 1.11 AU

Year: 390 Days

Day: 16.7 Hours

Environment

Temp: 14 °C

Axial Tilt: 10.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.68

Radius: 1.23

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.07 AU - 1.39 AU

Year: 517 Days

Day: 35.9 Hours

Environment

Temp: -33 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 76,827,267 km

• M1: 171,589 km (0.101 R)
• M2: 402,269 km (0.08 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.5 AU - 1.66 AU

Year: 752 Days

Day: 39.3 Hours

Environment

Temp: -64 °C

Axial Tilt: 16.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,827,267 km

• M1: 142,866 km (0.099 R)

Planet 7 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.72

Radius: 1.24

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.56 AU - 1.82 AU

Year: 832 Days

Day: 42.2 Hours

Environment

Temp: -66 °C

Axial Tilt: 16.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,827,267 km

• M1: 400,324 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.5

Radius: 9.8

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 5.27 AU - 7.39 AU

Year: 6032 Days

Day: 9.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,827,267 km

• M1: 122,221 km (0.119 R)
• M2: 769,831 km (0.099 R)
• M3: 1,948,213 km (0.079 R)
• M4: 2,571,438 km (0.051 R)
• M5: 3,016,192 km (0.067 R)
• M6: 3,976,311 km (0.109 R)
• M7: 4,714,128 km (0.095 R)
• M8: 5,153,497 km (0.063 R)
• M9: 5,946,515 km (0.114 R)
• M10: 6,401,742 km (0.09 R)
• M11: 6,818,970 km (0.077 R)
• M12: 8,043,578 km (0.076 R)
• M13: 11,091,485 km (0.088 R)
• M14: 12,364,414 km (0.046 R)
• M15: 14,630,522 km (0.096 R)
• M16: 15,514,197 km (0.105 R)
• M17: 15,834,486 km (0.092 R)
• M18: 17,791,824 km (0.115 R)
• M19: 18,498,525 km (0.116 R)
• M20: 22,793,031 km (0.077 R)
• M21: 23,276,830 km (0.096 R)

Planet 9 - Gas Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.8

Radius: 9.5

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 5.88 AU - 7.46 AU

Year: 6524 Days

Day: 10.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,827,267 km

• M1: 118,182 km (0.083 R)
• M2: 685,607 km (0.104 R)
• M3: 2,822,762 km (0.072 R)
• M4: 3,587,955 km (0.106 R)
• M5: 4,243,344 km (0.106 R)
• M6: 4,599,985 km (0.085 R)
• M7: 6,208,162 km (0.091 R)
• M8: 8,566,423 km (0.089 R)
• M9: 9,355,252 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 12.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 933.2

Radius: 4.6

Gravity: 44.1 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 10.67 AU - 14.97 AU

Year: 17385 Days

Day: 24.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 76,827,267 km

• M1: 57,146 km (0.025 R)
• M2: 497,563 km (0.074 R)
• M3: 1,485,806 km (0.119 R)
• M4: 2,028,098 km (0.043 R)
• M5: 3,462,892 km (0.08 R)
• M6: 3,914,378 km (0.099 R)
• M7: 4,203,551 km (0.097 R)
• M8: 4,788,478 km (0.061 R)
• M9: 4,970,539 km (0.06 R)
• M10: 6,160,889 km (0.088 R)
• M11: 7,676,914 km (0.038 R)
• M12: 9,368,417 km (0.074 R)
• M13: 10,727,663 km (0.096 R)
• M14: 11,166,135 km (0.09 R)
• M15: 14,199,830 km (0.11 R)
• M16: 14,500,222 km (0.065 R)
• M17: 15,035,932 km (0.073 R)
• M18: 15,347,994 km (0.073 R)
• M19: 16,639,472 km (0.12 R)
• M20: 17,654,494 km (0.118 R)
• M21: 18,353,714 km (0.047 R)
• M22: 19,071,036 km (0.097 R)
• M23: 20,276,495 km (0.045 R)
• M24: 20,657,372 km (0.098 R)
• M25: 21,043,035 km (0.105 R)
• M26: 21,335,349 km (0.05 R)
• M27: 22,329,577 km (0.112 R)
• M28: 23,772,747 km (0.077 R)
• M29: 30,664,572 km (0.118 R)
• M30: 32,057,477 km (0.051 R)
• M31: 32,444,637 km (0.099 R)
• M32: 34,697,281 km (0.095 R)
• M33: 37,193,771 km (0.061 R)
• M34: 44,112,223 km (0.11 R)
• M35: 44,591,086 km (0.075 R)
• M36: 47,370,166 km (0.113 R)
• M37: 48,209,111 km (0.068 R)
• M38: 51,840,599 km (0.099 R)
• M39: 53,451,319 km (0.099 R)
• M40: 53,813,645 km (0.096 R)
• M41: 57,338,620 km (0.088 R)
• M42: 58,099,774 km (0.106 R)
• M43: 66,503,434 km (0.103 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 468 - 20,192 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit