🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.96

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.46 AU - 0.7 AU

Year: 196 Days

Day: 30.7 Hours

Environment

Temp: 25 °C

Axial Tilt: 39.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 99,685,848 km

• M1: 48,769 km (0.082 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.74 AU - 0.94 AU

Year: 341 Days

Day: 22.4 Hours

Environment

Temp: -56 °C

Axial Tilt: 12.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.74

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 0.65 AU - 1.03 AU

Year: 341 Days

Day: 30.8 Hours

Environment

Temp: -57 °C

Axial Tilt: 5.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.97

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.16 AU - 1.38 AU

Year: 634 Days

Day: 35.8 Hours

Environment

Temp: -87 °C

Axial Tilt: 10.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 99,685,848 km

• M1: 60,587 km (0.105 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.01 AU - 1.59 AU

Year: 657 Days

Day: 22.6 Hours

Environment

Temp: -93 °C

Axial Tilt: 24 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.77 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.3

Radius: 14.1

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 3.96 AU - 4.5 AU

Year: 3853 Days

Day: 7.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 99,685,848 km

• M1: 176,077 km (0.113 R)
• M2: 774,618 km (0.066 R)
• M3: 1,613,712 km (0.05 R)
• M4: 2,515,787 km (0.093 R)
• M5: 3,391,833 km (0.082 R)
• M6: 3,973,020 km (0.097 R)
• M7: 5,138,986 km (0.078 R)
• M8: 9,409,407 km (0.081 R)
• M9: 10,208,110 km (0.064 R)
• M10: 12,071,950 km (0.069 R)
• M11: 13,910,956 km (0.097 R)
• M12: 15,049,546 km (0.095 R)
• M13: 15,615,624 km (0.118 R)
• M14: 18,603,542 km (0.076 R)
• M15: 20,606,807 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.3

Radius: 11.8

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 6.65 AU - 8.69 AU

Year: 9409 Days

Day: 9 Hours

Environment

Temp: -184 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 99,685,848 km

• M1: 146,756 km (0.118 R)
• M2: 523,443 km (0.067 R)
• M3: 904,319 km (0.093 R)
• M4: 1,767,050 km (0.08 R)
• M5: 2,401,495 km (0.071 R)
• M6: 2,803,015 km (0.098 R)
• M7: 3,204,985 km (0.047 R)
• M8: 4,396,831 km (0.117 R)
• M9: 5,897,597 km (0.116 R)
• M10: 6,672,813 km (0.094 R)
• M11: 7,200,744 km (0.082 R)
• M12: 8,731,130 km (0.069 R)
• M13: 10,123,288 km (0.084 R)
• M14: 14,121,441 km (0.119 R)
• M15: 15,120,754 km (0.052 R)
• M16: 19,141,197 km (0.066 R)
• M17: 20,757,453 km (0.108 R)
• M18: 30,224,305 km (0.069 R)
• M19: 32,947,585 km (0.106 R)
• M20: 38,757,068 km (0.078 R)
• M21: 39,482,468 km (0.096 R)
• M22: 41,461,349 km (0.109 R)
• M23: 42,731,136 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 800.8

Radius: 5

Gravity: 32.03 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 14.82 AU - 16.72 AU

Year: 27739 Days

Day: 21 Hours

Environment

Temp: -214 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 99,685,848 km

• M1: 62,532 km (0.097 R)
• M2: 234,270 km (0.083 R)
• M3: 756,367 km (0.043 R)
• M4: 1,108,520 km (0.085 R)
• M5: 1,853,817 km (0.051 R)
• M6: 2,023,012 km (0.105 R)
• M7: 2,619,758 km (0.092 R)
• M8: 3,909,142 km (0.064 R)
• M9: 5,971,797 km (0.061 R)
• M10: 6,729,361 km (0.101 R)
• M11: 7,872,887 km (0.061 R)
• M12: 8,262,440 km (0.111 R)
• M13: 8,664,709 km (0.109 R)
• M14: 14,232,293 km (0.117 R)
• M15: 14,810,040 km (0.096 R)
• M16: 15,232,205 km (0.118 R)
• M17: 15,575,682 km (0.049 R)
• M18: 15,924,245 km (0.081 R)
• M19: 16,546,871 km (0.119 R)
• M20: 18,804,602 km (0.069 R)
• M21: 19,299,621 km (0.101 R)
• M22: 19,701,740 km (0.108 R)
• M23: 20,212,318 km (0.083 R)
• M24: 22,232,936 km (0.102 R)
• M25: 22,453,144 km (0.081 R)
• M26: 23,010,097 km (0.115 R)
• M27: 23,920,400 km (0.076 R)
• M28: 30,837,507 km (0.072 R)
• M29: 37,869,654 km (0.076 R)
• M30: 39,943,080 km (0.102 R)
• M31: 46,435,478 km (0.108 R)
• M32: 46,976,125 km (0.084 R)
• M33: 49,742,190 km (0.119 R)
• M34: 50,878,385 km (0.116 R)
• M35: 51,838,505 km (0.075 R)
• M36: 55,394,446 km (0.067 R)
• M37: 61,676,509 km (0.076 R)
• M38: 64,093,861 km (0.091 R)
• M39: 69,585,898 km (0.105 R)
• M40: 71,964,056 km (0.109 R)
• M41: 96,142,213 km (0.029 R)
• M42: 98,495,088 km (0.112 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 161 - 16,253 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit