🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.17

Radius: 1.06

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.49 AU - 0.55 AU

Year: 242 Days

Day: 21.9 Hours

Environment

Temp: -112 °C

Axial Tilt: 10.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.45 AU - 0.73 AU

Year: 293 Days

Day: 29 Hours

Environment

Temp: -125 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 33,741,794 km

• M1: 42,486 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.9

Radius: 12.8

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.73 AU - 1.03 AU

Year: 533 Days

Day: 13.5 Hours

Environment

Temp: -154 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 33,741,794 km

• M1: 159,172 km (0.059 R)
• M2: 796,160 km (0.109 R)
• M3: 1,266,645 km (0.084 R)
• M4: 2,655,961 km (0.034 R)
• M5: 3,960,903 km (0.118 R)
• M6: 4,442,907 km (0.092 R)
• M7: 5,349,620 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.9

Radius: 9.7

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.89 AU - 1.07 AU

Year: 626 Days

Day: 8.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 33,741,794 km

• M1: 120,875 km (0.101 R)
• M2: 1,093,261 km (0.119 R)
• M3: 1,412,653 km (0.12 R)
• M4: 3,171,924 km (0.106 R)
• M5: 3,979,154 km (0.092 R)
• M6: 4,402,965 km (0.104 R)
• M7: 4,811,516 km (0.106 R)
• M8: 5,604,086 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.9

Radius: 13.4

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.19 AU - 1.79 AU

Year: 1174 Days

Day: 12.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 33,741,794 km

• M1: 167,250 km (0.098 R)
• M2: 701,764 km (0.111 R)
• M3: 1,403,078 km (0.081 R)
• M4: 1,833,621 km (0.075 R)
• M5: 2,353,922 km (0.101 R)
• M6: 2,798,378 km (0.062 R)
• M7: 3,255,250 km (0.046 R)
• M8: 3,993,066 km (0.047 R)
• M9: 4,613,000 km (0.11 R)
• M10: 6,136,654 km (0.06 R)
• M11: 6,769,004 km (0.099 R)
• M12: 7,574,589 km (0.079 R)
• M13: 8,556,250 km (0.119 R)
• M14: 9,995,083 km (0.06 R)
• M15: 11,141,900 km (0.074 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.7

Radius: 9.9

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.62 AU - 2.04 AU

Year: 1598 Days

Day: 14.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,741,794 km

• M1: 123,119 km (0.086 R)
• M2: 450,738 km (0.072 R)
• M3: 797,506 km (0.116 R)
• M4: 1,162,525 km (0.084 R)
• M5: 1,956,740 km (0.076 R)
• M6: 2,303,209 km (0.116 R)
• M7: 2,677,652 km (0.105 R)
• M8: 3,121,808 km (0.11 R)
• M9: 3,696,264 km (0.076 R)
• M10: 4,526,084 km (0.058 R)
• M11: 6,311,833 km (0.086 R)
• M12: 7,309,502 km (0.092 R)
• M13: 7,791,506 km (0.054 R)
• M14: 8,209,183 km (0.099 R)
• M15: 8,671,141 km (0.088 R)
• M16: 9,028,830 km (0.109 R)
• M17: 10,526,155 km (0.102 R)
• M18: 11,780,234 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 34.1

Radius: 7.1

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 6.02 AU - 7.12 AU

Year: 10873 Days

Day: 23.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,741,794 km

• M1: 88,263 km (0.093 R)
• M2: 429,795 km (0.073 R)
• M3: 1,502,860 km (0.07 R)
• M4: 2,102,299 km (0.093 R)
• M5: 2,394,015 km (0.106 R)
• M6: 2,623,049 km (0.093 R)
• M7: 2,898,160 km (0.075 R)
• M8: 3,616,080 km (0.116 R)
• M9: 6,758,084 km (0.099 R)
• M10: 7,854,487 km (0.107 R)
• M11: 11,932,674 km (0.083 R)
• M12: 13,258,560 km (0.098 R)
• M13: 15,550,549 km (0.118 R)
• M14: 15,798,283 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 156.8

Radius: 5.1

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 7.13 AU - 7.17 AU

Year: 12345 Days

Day: 22.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 156.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 33,741,794 km

• M1: 63,429 km (0.106 R)
• M2: 246,986 km (0.119 R)
• M3: 446,998 km (0.049 R)
• M4: 635,043 km (0.059 R)
• M5: 802,742 km (0.101 R)
• M6: 1,096,104 km (0.025 R)
• M7: 1,375,403 km (0.105 R)
• M8: 1,811,181 km (0.047 R)
• M9: 2,418,698 km (0.106 R)
• M10: 2,594,476 km (0.088 R)
• M11: 3,091,590 km (0.105 R)
• M12: 3,320,175 km (0.074 R)
• M13: 3,977,359 km (0.103 R)
• M14: 5,307,882 km (0.078 R)
• M15: 6,432,708 km (0.047 R)
• M16: 7,157,660 km (0.104 R)
• M17: 7,521,332 km (0.084 R)
• M18: 8,285,628 km (0.119 R)
• M19: 8,605,468 km (0.085 R)
• M20: 10,935,754 km (0.062 R)
• M21: 13,004,094 km (0.086 R)
• M22: 13,490,586 km (0.051 R)
• M23: 20,167,588 km (0.086 R)
• M24: 20,892,539 km (0.055 R)
• M25: 29,029,766 km (0.11 R)
• M26: 29,859,885 km (0.096 R)
• M27: 32,642,555 km (0.064 R)
• M28: 33,741,800 km (0.065 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 423 - 13,801 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit