🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.46 AU - 0.62 AU

Year: 256 Days

Day: 15.5 Hours

Environment

Temp: -121 °C

Axial Tilt: 14.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,937,294 km

• M1: 73,602 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.3

Radius: 9.7

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.77 AU - 0.93 AU

Year: 506 Days

Day: 7.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 56,937,294 km

• M1: 120,576 km (0.097 R)
• M2: 451,187 km (0.1 R)
• M3: 836,102 km (0.061 R)
• M4: 1,268,440 km (0.033 R)
• M5: 1,589,777 km (0.098 R)
• M6: 1,941,930 km (0.046 R)
• M7: 2,346,293 km (0.109 R)
• M8: 3,373,282 km (0.101 R)
• M9: 3,715,712 km (0.069 R)
• M10: 4,855,498 km (0.083 R)
• M11: 5,440,127 km (0.03 R)
• M12: 5,775,226 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.4

Radius: 9

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.5 AU - 1.68 AU

Year: 1295 Days

Day: 8.3 Hours

Environment

Temp: -180 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,937,294 km

• M1: 112,198 km (0.108 R)
• M2: 422,913 km (0.077 R)
• M3: 707,897 km (0.107 R)
• M4: 1,263,504 km (0.088 R)
• M5: 1,600,996 km (0.113 R)
• M6: 2,018,225 km (0.113 R)
• M7: 2,623,199 km (0.115 R)
• M8: 2,981,336 km (0.039 R)
• M9: 3,781,685 km (0.115 R)
• M10: 4,078,188 km (0.118 R)
• M11: 4,915,936 km (0.095 R)
• M12: 5,822,948 km (0.058 R)
• M13: 6,155,803 km (0.111 R)
• M14: 6,860,259 km (0.105 R)
• M15: 8,143,659 km (0.109 R)
• M16: 8,587,217 km (0.101 R)
• M17: 9,781,906 km (0.118 R)

Planet 4 - Ice Giant

Semi-Major Axis: 7.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 371.8

Radius: 7.5

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 6.67 AU - 7.49 AU

Year: 12164 Days

Day: 16.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 56,937,294 km

• M1: 94,546 km (0.049 R)
• M2: 339,886 km (0.092 R)
• M3: 613,351 km (0.12 R)
• M4: 883,824 km (0.091 R)
• M5: 1,705,565 km (0.085 R)
• M6: 2,309,043 km (0.099 R)
• M7: 2,571,587 km (0.031 R)
• M8: 4,281,341 km (0.093 R)
• M9: 5,990,946 km (0.093 R)
• M10: 7,652,978 km (0.098 R)
• M11: 12,134,930 km (0.065 R)
• M12: 14,134,755 km (0.06 R)
• M13: 14,954,402 km (0.068 R)
• M14: 15,212,907 km (0.039 R)
• M15: 20,390,938 km (0.117 R)
• M16: 21,354,797 km (0.099 R)
• M17: 22,942,479 km (0.071 R)
• M18: 24,517,745 km (0.1 R)
• M19: 24,967,735 km (0.076 R)
• M20: 27,013,785 km (0.073 R)
• M21: 30,911,109 km (0.111 R)
• M22: 31,436,497 km (0.059 R)
• M23: 32,613,084 km (0.066 R)
• M24: 33,597,288 km (0.112 R)
• M25: 35,281,611 km (0.083 R)
• M26: 37,257,499 km (0.082 R)
• M27: 39,552,031 km (0.117 R)
• M28: 40,545,660 km (0.103 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 745.1

Radius: 5.3

Gravity: 26.53 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 5.76 AU - 9.46 AU

Year: 13555 Days

Day: 18.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 56,937,294 km

• M1: 65,973 km (0.114 R)
• M2: 235,018 km (0.081 R)
• M3: 454,030 km (0.084 R)
• M4: 734,675 km (0.099 R)
• M5: 899,682 km (0.114 R)
• M6: 1,138,141 km (0.058 R)
• M7: 1,645,876 km (0.047 R)
• M8: 1,915,302 km (0.055 R)
• M9: 2,673,912 km (0.045 R)
• M10: 2,879,759 km (0.027 R)
• M11: 3,170,577 km (0.086 R)
• M12: 3,349,197 km (0.119 R)
• M13: 3,896,875 km (0.108 R)
• M14: 5,488,746 km (0.054 R)
• M15: 6,989,063 km (0.064 R)
• M16: 8,208,286 km (0.085 R)
• M17: 8,497,309 km (0.047 R)
• M18: 8,893,145 km (0.112 R)
• M19: 18,779,619 km (0.088 R)
• M20: 20,051,351 km (0.085 R)
• M21: 20,575,691 km (0.077 R)
• M22: 20,930,388 km (0.09 R)
• M23: 21,379,331 km (0.053 R)
• M24: 22,111,014 km (0.091 R)
• M25: 23,048,993 km (0.111 R)
• M26: 24,406,294 km (0.1 R)
• M27: 34,054,609 km (0.077 R)
• M28: 42,297,152 km (0.074 R)
• M29: 50,319,189 km (0.112 R)
• M30: 53,258,488 km (0.092 R)
• M31: 54,431,784 km (0.096 R)
• M32: 60,376,803 km (0.117 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 569.3

Radius: 7.9

Gravity: 9.12 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 7.46 AU - 8.24 AU

Year: 14201 Days

Day: 18.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 56,937,294 km

• M1: 99,183 km (0.104 R)
• M2: 424,260 km (0.109 R)
• M3: 720,164 km (0.063 R)
• M4: 1,180,178 km (0.106 R)
• M5: 1,456,036 km (0.075 R)
• M6: 2,235,142 km (0.094 R)
• M7: 2,641,150 km (0.114 R)
• M8: 2,977,297 km (0.109 R)
• M9: 4,617,338 km (0.054 R)
• M10: 9,198,324 km (0.104 R)
• M11: 9,973,540 km (0.114 R)
• M12: 10,241,321 km (0.09 R)
• M13: 13,255,119 km (0.105 R)
• M14: 20,441,502 km (0.116 R)
• M15: 21,136,982 km (0.103 R)
• M16: 21,490,632 km (0.101 R)
• M17: 26,864,337 km (0.082 R)
• M18: 27,698,644 km (0.085 R)
• M19: 30,754,629 km (0.087 R)
• M20: 33,189,036 km (0.077 R)
• M21: 41,533,904 km (0.076 R)
• M22: 44,213,950 km (0.096 R)
• M23: 53,594,634 km (0.069 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 430 - 12,318 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit