🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 0.6 AU - 0.66 AU

Year: 328 Days

Day: 30.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 24.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,063,133 km

• M1: 42,935 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.7

Radius: 11.5

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.68 AU - 0.9 AU

Year: 461 Days

Day: 9.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,063,133 km

• M1: 143,016 km (0.034 R)
• M2: 527,781 km (0.078 R)
• M3: 902,674 km (0.053 R)
• M4: 1,280,408 km (0.113 R)
• M5: 1,773,932 km (0.088 R)
• M6: 2,392,968 km (0.094 R)
• M7: 2,753,947 km (0.113 R)
• M8: 3,128,540 km (0.104 R)
• M9: 4,672,989 km (0.094 R)
• M10: 5,717,032 km (0.088 R)
• M11: 6,238,830 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.1

Radius: 11.8

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.02 AU - 1.32 AU

Year: 830 Days

Day: 9 Hours

Environment

Temp: -161 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,063,133 km

• M1: 150,346 km (0.112 R)
• M2: 805,884 km (0.076 R)
• M3: 1,315,564 km (0.111 R)
• M4: 1,838,109 km (0.096 R)
• M5: 2,306,500 km (0.081 R)
• M6: 2,863,752 km (0.033 R)
• M7: 3,960,604 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.7

Radius: 13

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.36 AU - 2.12 AU

Year: 1506 Days

Day: 5.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,063,133 km

• M1: 161,715 km (0.06 R)
• M2: 625,170 km (0.08 R)
• M3: 1,369,419 km (0.114 R)
• M4: 1,830,928 km (0.088 R)
• M5: 2,299,170 km (0.085 R)
• M6: 2,709,217 km (0.104 R)
• M7: 3,199,300 km (0.112 R)
• M8: 3,731,420 km (0.076 R)
• M9: 5,401,830 km (0.039 R)
• M10: 6,578,118 km (0.119 R)
• M11: 7,720,447 km (0.06 R)
• M12: 8,207,089 km (0.073 R)
• M13: 8,653,489 km (0.06 R)
• M14: 9,530,132 km (0.116 R)
• M15: 10,743,371 km (0.107 R)
• M16: 12,674,231 km (0.043 R)
• M17: 13,110,608 km (0.071 R)

Asteroid Belt

Center: 2.14 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.4

Radius: 9.2

Gravity: 8.79 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.28 AU - 2.8 AU

Year: 2656 Days

Day: 9.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 55,063,133 km

• M1: 114,891 km (0.118 R)
• M2: 458,069 km (0.103 R)
• M3: 1,139,936 km (0.103 R)
• M4: 1,429,707 km (0.044 R)
• M5: 1,724,115 km (0.047 R)
• M6: 2,706,375 km (0.028 R)
• M7: 3,284,720 km (0.062 R)
• M8: 3,727,381 km (0.107 R)
• M9: 4,422,263 km (0.109 R)
• M10: 4,916,235 km (0.096 R)
• M11: 5,597,803 km (0.102 R)
• M12: 6,230,901 km (0.07 R)
• M13: 6,794,286 km (0.096 R)
• M14: 7,893,532 km (0.089 R)
• M15: 8,252,118 km (0.108 R)
• M16: 9,213,882 km (0.09 R)
• M17: 10,363,991 km (0.101 R)
• M18: 11,565,561 km (0.069 R)
• M19: 11,858,773 km (0.114 R)
• M20: 13,492,232 km (0.105 R)
• M21: 14,005,502 km (0.113 R)
• M22: 15,471,711 km (0.1 R)
• M23: 16,823,029 km (0.039 R)
• M24: 18,535,027 km (0.108 R)
• M25: 19,286,307 km (0.065 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 203.6

Radius: 4.1

Gravity: 12.11 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 6.51 AU - 7.35 AU

Year: 11968 Days

Day: 21.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 55,063,133 km

• M1: 51,312 km (0.104 R)
• M2: 206,894 km (0.067 R)
• M3: 356,641 km (0.086 R)
• M4: 561,291 km (0.089 R)
• M5: 721,062 km (0.108 R)
• M6: 947,403 km (0.092 R)
• M7: 1,123,630 km (0.098 R)
• M8: 1,368,671 km (0.106 R)
• M9: 1,716,935 km (0.086 R)
• M10: 2,355,418 km (0.066 R)
• M11: 2,699,643 km (0.119 R)
• M12: 3,223,984 km (0.094 R)
• M13: 3,718,255 km (0.08 R)
• M14: 4,339,236 km (0.077 R)
• M15: 5,172,496 km (0.065 R)
• M16: 5,503,107 km (0.09 R)
• M17: 5,720,772 km (0.114 R)
• M18: 6,649,326 km (0.106 R)
• M19: 11,879,567 km (0.083 R)
• M20: 12,243,239 km (0.031 R)
• M21: 12,938,271 km (0.109 R)
• M22: 16,489,425 km (0.1 R)
• M23: 18,279,962 km (0.056 R)
• M24: 20,122,858 km (0.115 R)
• M25: 20,565,070 km (0.111 R)
• M26: 22,714,641 km (0.075 R)
• M27: 24,090,344 km (0.099 R)
• M28: 28,827,061 km (0.047 R)
• M29: 29,294,704 km (0.044 R)
• M30: 30,053,464 km (0.112 R)
• M31: 31,709,064 km (0.086 R)
• M32: 34,148,407 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 28.3

Radius: 5.1

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 6.64 AU - 10.42 AU

Year: 16343 Days

Day: 16 Hours

Environment

Temp: -219 °C

Axial Tilt: 150.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,063,133 km

• M1: 63,429 km (0.098 R)
• M2: 263,891 km (0.093 R)
• M3: 652,097 km (0.1 R)
• M4: 1,886,280 km (0.07 R)
• M5: 2,398,503 km (0.097 R)
• M6: 3,457,506 km (0.086 R)
• M7: 3,734,112 km (0.095 R)
• M8: 12,248,026 km (0.047 R)
• M9: 15,634,623 km (0.102 R)
• M10: 18,864,441 km (0.105 R)
• M11: 21,510,678 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 344.6

Radius: 6.2

Gravity: 8.96 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 8.86 AU - 8.9 AU

Year: 17359 Days

Day: 15.9 Hours

Environment

Temp: -220 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,063,133 km

• M1: 99,333 km (0.109 R)
• M2: 298,149 km (0.105 R)
• M3: 654,640 km (0.109 R)
• M4: 1,010,534 km (0.082 R)
• M5: 2,454,901 km (0.118 R)
• M6: 3,264,076 km (0.096 R)
• M7: 3,811,604 km (0.113 R)
• M8: 5,570,127 km (0.061 R)
• M9: 16,540,887 km (0.032 R)
• M10: 22,268,541 km (0.03 R)
• M11: 33,489,129 km (0.083 R)
• M12: 34,324,334 km (0.115 R)
• M13: 41,240,393 km (0.079 R)
• M14: 52,785,908 km (0.115 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: 451 - 14,902 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit