🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.54 AU - 0.58 AU

Year: 155 Days

Day: 13.5 Hours

Environment

Temp: 225 °C

Axial Tilt: 32.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 84,191,087 km

• M1: 85,570 km (0.077 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.5 AU - 0.66 AU

Year: 163 Days

Day: 16.2 Hours

Environment

Temp: 231 °C

Axial Tilt: 39.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.08

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.91 AU - 1.13 AU

Year: 380 Days

Day: 27.2 Hours

Environment

Temp: 25 °C

Axial Tilt: 0 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.09

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1 AU - 1.42 AU

Year: 491 Days

Day: 43.4 Hours

Environment

Temp: 9 °C

Axial Tilt: 0.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.89

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.43 AU - 1.57 AU

Year: 678 Days

Day: 43.3 Hours

Environment

Temp: -37 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.44

Radius: 0.72

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.38 AU - 1.94 AU

Year: 789 Days

Day: 27.8 Hours

Environment

Temp: -60 °C

Axial Tilt: 17.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.7

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.04 AU - 2.06 AU

Year: 1083 Days

Day: 18.7 Hours

Environment

Temp: -64 °C

Axial Tilt: 4.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.8

Radius: 10.5

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 7.1 AU - 7.46 AU

Year: 7247 Days

Day: 13.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,191,087 km

• M1: 130,599 km (0.112 R)
• M2: 849,566 km (0.104 R)
• M3: 1,611,767 km (0.116 R)
• M4: 2,005,210 km (0.087 R)
• M5: 2,726,122 km (0.113 R)
• M6: 3,678,612 km (0.093 R)
• M7: 4,812,414 km (0.062 R)
• M8: 5,851,521 km (0.045 R)
• M9: 8,174,327 km (0.064 R)
• M10: 12,130,443 km (0.087 R)
• M11: 14,548,842 km (0.106 R)
• M12: 17,465,103 km (0.108 R)
• M13: 21,114,393 km (0.059 R)
• M14: 21,781,001 km (0.08 R)
• M15: 22,461,372 km (0.09 R)
• M16: 23,155,955 km (0.11 R)
• M17: 24,345,408 km (0.046 R)
• M18: 25,243,145 km (0.116 R)
• M19: 25,909,753 km (0.098 R)
• M20: 30,345,479 km (0.106 R)
• M21: 31,289,591 km (0.093 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.9

Radius: 9.5

Gravity: 6.49 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 10.13 AU - 11.53 AU

Year: 13150 Days

Day: 14.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 84,191,087 km

• M1: 118,182 km (0.092 R)
• M2: 1,000,660 km (0.07 R)
• M3: 1,574,817 km (0.041 R)
• M4: 1,954,496 km (0.12 R)
• M5: 2,946,180 km (0.113 R)
• M6: 3,711,523 km (0.112 R)
• M7: 4,242,596 km (0.061 R)
• M8: 5,491,887 km (0.113 R)
• M9: 6,107,183 km (0.062 R)
• M10: 6,412,363 km (0.056 R)
• M11: 7,094,679 km (0.044 R)
• M12: 9,037,058 km (0.092 R)
• M13: 10,210,055 km (0.085 R)
• M14: 11,084,005 km (0.078 R)
• M15: 12,609,305 km (0.103 R)
• M16: 16,507,975 km (0.118 R)
• M17: 20,542,929 km (0.047 R)
• M18: 21,932,993 km (0.071 R)
• M19: 24,899,818 km (0.06 R)
• M20: 25,681,317 km (0.086 R)
• M21: 26,378,443 km (0.079 R)
• M22: 30,495,526 km (0.091 R)
• M23: 30,828,980 km (0.05 R)
• M24: 32,072,287 km (0.113 R)
• M25: 33,821,236 km (0.069 R)
• M26: 34,298,154 km (0.108 R)
• M27: 35,265,454 km (0.046 R)
• M28: 36,250,855 km (0.095 R)
• M29: 39,977,039 km (0.113 R)
• M30: 40,644,245 km (0.085 R)
• M31: 44,376,563 km (0.098 R)
• M32: 44,948,176 km (0.078 R)
• M33: 47,581,697 km (0.117 R)
• M34: 54,612,348 km (0.079 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 839.4

Radius: 5.3

Gravity: 29.88 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 12.1 AU - 17.52 AU

Year: 21029 Days

Day: 20.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 84,191,087 km

• M1: 66,421 km (0.08 R)
• M2: 404,064 km (0.116 R)
• M3: 780,153 km (0.119 R)
• M4: 1,049,878 km (0.052 R)
• M5: 1,477,279 km (0.105 R)
• M6: 1,685,220 km (0.08 R)
• M7: 2,429,320 km (0.109 R)
• M8: 2,596,421 km (0.088 R)
• M9: 3,144,398 km (0.111 R)
• M10: 3,401,556 km (0.101 R)
• M11: 5,017,812 km (0.066 R)
• M12: 6,078,610 km (0.107 R)
• M13: 6,387,979 km (0.072 R)
• M14: 9,842,493 km (0.088 R)
• M15: 10,708,216 km (0.109 R)
• M16: 11,225,226 km (0.096 R)
• M17: 11,758,692 km (0.058 R)
• M18: 12,239,051 km (0.078 R)
• M19: 12,804,082 km (0.061 R)
• M20: 14,760,672 km (0.08 R)
• M21: 15,563,414 km (0.105 R)
• M22: 20,505,829 km (0.072 R)
• M23: 23,275,634 km (0.083 R)
• M24: 24,472,117 km (0.118 R)
• M25: 24,805,421 km (0.091 R)
• M26: 26,053,516 km (0.07 R)
• M27: 30,175,237 km (0.082 R)
• M28: 31,991,654 km (0.039 R)
• M29: 32,926,641 km (0.117 R)
• M30: 35,556,272 km (0.073 R)
• M31: 39,073,468 km (0.116 R)
• M32: 40,760,333 km (0.101 R)
• M33: 44,443,134 km (0.096 R)
• M34: 45,942,553 km (0.081 R)
• M35: 46,280,345 km (0.045 R)
• M36: 50,284,183 km (0.085 R)
• M37: 60,985,218 km (0.059 R)
• M38: 67,079,835 km (0.099 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 18,157 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit