🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.04

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.77 AU - 1.09 AU

Year: 336 Days

Day: 24 Hours

Environment

Temp: 32 °C

Axial Tilt: 3.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.14

Radius: 1.05

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.08 AU - 1.08 AU

Year: 421 Days

Day: 14.7 Hours

Environment

Temp: 17 °C

Axial Tilt: 5.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.72

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.97 AU - 1.49 AU

Year: 511 Days

Day: 39.8 Hours

Environment

Temp: 3 °C

Axial Tilt: 5.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.22

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.4 AU - 2.02 AU

Year: 838 Days

Day: 17.1 Hours

Environment

Temp: -53 °C

Axial Tilt: 22.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.61 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 11.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.9

Radius: 9.8

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 10.69 AU - 12.33 AU

Year: 14633 Days

Day: 12.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 41,532,561 km

• M1: 121,922 km (0.115 R)
• M2: 553,363 km (0.07 R)
• M3: 930,798 km (0.089 R)
• M4: 1,259,165 km (0.084 R)
• M5: 1,602,941 km (0.113 R)
• M6: 2,606,444 km (0.034 R)
• M7: 3,422,350 km (0.096 R)
• M8: 4,631,849 km (0.075 R)
• M9: 6,201,131 km (0.091 R)
• M10: 6,829,592 km (0.081 R)
• M11: 7,609,595 km (0.096 R)
• M12: 8,369,253 km (0.093 R)
• M13: 10,352,771 km (0.094 R)
• M14: 11,624,353 km (0.076 R)
• M15: 17,182,512 km (0.084 R)
• M16: 18,621,644 km (0.119 R)
• M17: 19,370,680 km (0.076 R)
• M18: 20,424,148 km (0.083 R)
• M19: 22,037,861 km (0.079 R)
• M20: 22,875,758 km (0.118 R)
• M21: 23,577,073 km (0.064 R)
• M22: 23,893,323 km (0.059 R)
• M23: 25,022,488 km (0.088 R)
• M24: 27,824,606 km (0.073 R)
• M25: 31,589,086 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 784.3

Radius: 5.8

Gravity: 23.31 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 10.03 AU - 14.11 AU

Year: 15714 Days

Day: 20.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 41,532,561 km

• M1: 75,248 km (0.118 R)
• M2: 381,774 km (0.104 R)
• M3: 566,527 km (0.087 R)
• M4: 1,740,571 km (0.09 R)
• M5: 2,594,775 km (0.077 R)
• M6: 3,642,559 km (0.06 R)
• M7: 4,181,859 km (0.094 R)
• M8: 5,530,633 km (0.099 R)
• M9: 6,324,549 km (0.058 R)
• M10: 7,012,251 km (0.072 R)
• M11: 9,869,420 km (0.048 R)
• M12: 12,348,706 km (0.086 R)
• M13: 13,766,445 km (0.082 R)
• M14: 14,048,437 km (0.101 R)
• M15: 25,660,523 km (0.064 R)
• M16: 27,619,656 km (0.118 R)
• M17: 31,223,619 km (0.118 R)
• M18: 36,724,332 km (0.053 R)
• M19: 44,810,696 km (0.08 R)
• M20: 49,925,148 km (0.062 R)
• M21: 50,257,105 km (0.116 R)
• M22: 65,966,527 km (0.113 R)
• M23: 67,170,641 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 141.8

Radius: 5.1

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 10.52 AU - 15.64 AU

Year: 17727 Days

Day: 20.1 Hours

Environment

Temp: -188 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 41,532,561 km

• M1: 63,429 km (0.076 R)
• M2: 249,679 km (0.113 R)
• M3: 487,240 km (0.099 R)
• M4: 1,149,809 km (0.103 R)
• M5: 1,310,777 km (0.107 R)
• M6: 1,678,937 km (0.115 R)
• M7: 2,542,266 km (0.116 R)
• M8: 3,269,312 km (0.098 R)
• M9: 4,179,316 km (0.115 R)
• M10: 5,435,938 km (0.091 R)
• M11: 6,064,099 km (0.111 R)
• M12: 6,702,733 km (0.074 R)
• M13: 7,947,088 km (0.093 R)
• M14: 9,709,500 km (0.093 R)
• M15: 10,782,117 km (0.084 R)
• M16: 11,242,878 km (0.098 R)
• M17: 12,039,936 km (0.094 R)
• M18: 13,864,880 km (0.12 R)
• M19: 15,285,162 km (0.088 R)
• M20: 16,395,328 km (0.049 R)
• M21: 19,291,992 km (0.075 R)
• M22: 20,431,778 km (0.068 R)
• M23: 23,774,991 km (0.108 R)
• M24: 26,165,116 km (0.119 R)
• M25: 27,371,025 km (0.081 R)
• M26: 30,294,466 km (0.084 R)
• M27: 35,282,209 km (0.118 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 247 - 14,224 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit