🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.56 AU - 0.58 AU

Year: 274 Days

Day: 38.5 Hours

Environment

Temp: -134 °C

Axial Tilt: 23.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.54 AU - 0.72 AU

Year: 318 Days

Day: 18.9 Hours

Environment

Temp: -125 °C

Axial Tilt: 49 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.9

Radius: 14.5

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.6 AU - 0.76 AU

Year: 357 Days

Day: 6.1 Hours

Environment

Temp: -142 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,995,665 km

• M1: 180,265 km (0.104 R)
• M2: 634,893 km (0.109 R)
• M3: 1,099,395 km (0.029 R)
• M4: 1,654,104 km (0.049 R)
• M5: 2,234,992 km (0.047 R)
• M6: 3,022,625 km (0.12 R)
• M7: 3,545,470 km (0.09 R)
• M8: 4,258,303 km (0.11 R)
• M9: 4,775,912 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.1

Radius: 9.8

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.59 AU - 0.89 AU

Year: 405 Days

Day: 14.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 151 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,995,665 km

• M1: 121,922 km (0.097 R)
• M2: 440,715 km (0.084 R)
• M3: 746,344 km (0.074 R)
• M4: 1,171,950 km (0.097 R)
• M5: 1,515,875 km (0.11 R)
• M6: 2,070,734 km (0.06 R)
• M7: 2,580,862 km (0.036 R)
• M8: 2,979,541 km (0.064 R)
• M9: 3,289,059 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.4

Radius: 9.2

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.66 AU - 0.86 AU

Year: 421 Days

Day: 12.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 53.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,995,665 km

• M1: 114,442 km (0.077 R)
• M2: 481,256 km (0.09 R)
• M3: 773,720 km (0.081 R)
• M4: 1,073,514 km (0.103 R)
• M5: 1,435,092 km (0.105 R)
• M6: 2,052,483 km (0.112 R)
• M7: 2,512,347 km (0.102 R)
• M8: 3,029,806 km (0.096 R)
• M9: 4,240,501 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.3

Radius: 14

Gravity: 2.29 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.63 AU - 0.99 AU

Year: 464 Days

Day: 9.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,995,665 km

• M1: 174,581 km (0.104 R)
• M2: 614,099 km (0.113 R)
• M3: 1,058,255 km (0.068 R)
• M4: 1,745,059 km (0.08 R)
• M5: 2,367,835 km (0.073 R)
• M6: 3,062,119 km (0.102 R)
• M7: 3,729,774 km (0.098 R)
• M8: 4,316,198 km (0.096 R)
• M9: 5,342,738 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.4

Radius: 9

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.74 AU - 0.94 AU

Year: 489 Days

Day: 12.4 Hours

Environment

Temp: -143 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 50,995,665 km

• M1: 112,049 km (0.103 R)
• M2: 564,882 km (0.102 R)
• M3: 854,054 km (0.088 R)
• M4: 1,250,788 km (0.045 R)
• M5: 1,947,764 km (0.11 R)
• M6: 2,767,411 km (0.108 R)
• M7: 3,320,026 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.87 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 418.6

Radius: 7.8

Gravity: 6.88 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 7.36 AU - 8.38 AU

Year: 14038 Days

Day: 15.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 94.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 50,995,665 km

• M1: 105,466 km (0.112 R)
• M2: 365,168 km (0.033 R)
• M3: 692,339 km (0.08 R)
• M4: 1,110,016 km (0.094 R)
• M5: 1,672,803 km (0.028 R)
• M6: 1,926,222 km (0.103 R)
• M7: 2,979,092 km (0.082 R)
• M8: 3,814,297 km (0.06 R)
• M9: 4,229,132 km (0.109 R)
• M10: 4,492,125 km (0.093 R)
• M11: 5,247,744 km (0.052 R)
• M12: 5,517,469 km (0.108 R)
• M13: 6,232,995 km (0.093 R)
• M14: 6,613,273 km (0.056 R)
• M15: 7,008,810 km (0.105 R)
• M16: 7,378,317 km (0.083 R)
• M17: 7,934,970 km (0.03 R)
• M18: 9,083,583 km (0.103 R)
• M19: 11,424,191 km (0.09 R)
• M20: 12,110,546 km (0.116 R)
• M21: 13,882,383 km (0.066 R)
• M22: 16,030,609 km (0.114 R)
• M23: 20,142,605 km (0.097 R)
• M24: 21,143,265 km (0.106 R)
• M25: 22,176,688 km (0.114 R)
• M26: 27,854,076 km (0.081 R)
• M27: 30,915,896 km (0.109 R)
• M28: 33,498,554 km (0.065 R)
• M29: 36,343,008 km (0.099 R)
• M30: 38,706,205 km (0.064 R)
• M31: 41,835,194 km (0.089 R)
• M32: 46,264,039 km (0.117 R)
• M33: 49,334,386 km (0.082 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 173 - 16,644 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit