🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.53 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1 AU - 1.1 AU

Year: 466 Days

Day: 30.5 Hours

Environment

Temp: -69 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 91,173,664 km

• M1: 19,897 km (0.065 R)
• M2: 347,665 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.9 AU - 1.26 AU

Year: 487 Days

Day: 23 Hours

Environment

Temp: -57 °C

Axial Tilt: 8.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 91,173,664 km

• M1: 33,660 km (0.054 R)
• M2: 71,209 km (0.098 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 1.22 AU - 1.44 AU

Year: 665 Days

Day: 44.8 Hours

Environment

Temp: -77 °C

Axial Tilt: 10.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 91,173,664 km

• M1: 249,230 km (0.098 R)

Asteroid Belt

Center: 2.54 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.3

Radius: 8.2

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.44 AU - 4.07 AU

Year: 3148 Days

Day: 13.4 Hours

Environment

Temp: -153 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 91,173,664 km

• M1: 102,624 km (0.055 R)
• M2: 567,275 km (0.047 R)
• M3: 905,965 km (0.086 R)
• M4: 1,522,607 km (0.062 R)
• M5: 2,394,164 km (0.085 R)
• M6: 3,333,190 km (0.079 R)
• M7: 4,303,931 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302.1

Radius: 14

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 4.84 AU - 5.56 AU

Year: 5140 Days

Day: 5.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 91,173,664 km

• M1: 174,132 km (0.11 R)
• M2: 706,401 km (0.095 R)
• M3: 1,178,981 km (0.045 R)
• M4: 1,983,219 km (0.084 R)
• M5: 2,450,712 km (0.107 R)
• M6: 3,202,442 km (0.036 R)
• M7: 4,168,096 km (0.12 R)
• M8: 4,970,838 km (0.113 R)
• M9: 5,526,744 km (0.104 R)
• M10: 6,124,088 km (0.114 R)
• M11: 7,225,876 km (0.096 R)
• M12: 8,775,411 km (0.058 R)
• M13: 9,705,461 km (0.102 R)
• M14: 11,544,318 km (0.107 R)
• M15: 17,627,566 km (0.074 R)
• M16: 18,446,465 km (0.089 R)
• M17: 19,846,701 km (0.094 R)
• M18: 21,645,765 km (0.075 R)
• M19: 23,341,905 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170

Radius: 12.6

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 6.53 AU - 8.73 AU

Year: 9136 Days

Day: 7.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 91,173,664 km

• M1: 157,078 km (0.091 R)
• M2: 602,730 km (0.108 R)
• M3: 1,089,521 km (0.114 R)
• M4: 1,816,866 km (0.111 R)
• M5: 3,495,205 km (0.066 R)
• M6: 4,427,349 km (0.09 R)
• M7: 5,745,456 km (0.088 R)
• M8: 7,075,530 km (0.087 R)
• M9: 16,225,235 km (0.114 R)
• M10: 18,474,140 km (0.033 R)
• M11: 19,839,370 km (0.068 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 910.4

Radius: 5.7

Gravity: 28.02 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 10.92 AU - 17.12 AU

Year: 22755 Days

Day: 18.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 91,173,664 km

• M1: 71,059 km (0.107 R)
• M2: 253,120 km (0.083 R)
• M3: 487,689 km (0.093 R)
• M4: 855,700 km (0.097 R)
• M5: 1,378,096 km (0.114 R)
• M6: 1,804,898 km (0.025 R)
• M7: 2,028,248 km (0.087 R)
• M8: 2,530,598 km (0.045 R)
• M9: 4,321,434 km (0.098 R)
• M10: 4,648,155 km (0.079 R)
• M11: 5,229,343 km (0.107 R)
• M12: 6,167,771 km (0.098 R)
• M13: 6,724,574 km (0.074 R)
• M14: 7,213,609 km (0.049 R)
• M15: 8,483,845 km (0.114 R)
• M16: 10,658,399 km (0.081 R)
• M17: 11,053,637 km (0.093 R)
• M18: 11,943,744 km (0.11 R)
• M19: 13,943,419 km (0.09 R)
• M20: 15,394,070 km (0.107 R)
• M21: 15,645,245 km (0.119 R)
• M22: 17,031,418 km (0.037 R)
• M23: 21,783,245 km (0.096 R)
• M24: 22,850,925 km (0.028 R)
• M25: 23,618,661 km (0.088 R)
• M26: 25,789,177 km (0.081 R)
• M27: 27,594,075 km (0.102 R)
• M28: 28,089,244 km (0.114 R)
• M29: 31,319,212 km (0.111 R)
• M30: 37,893,141 km (0.104 R)
• M31: 42,150,397 km (0.059 R)
• M32: 71,940,868 km (0.095 R)
• M33: 91,173,619 km (0.084 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 222 - 14,297 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit