🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.59 AU - 0.71 AU

Year: 344 Days

Day: 29.3 Hours

Environment

Temp: -127 °C

Axial Tilt: 27.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,528,239 km

• M1: 19,897 km (0.027 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504

Radius: 14.7

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.61 AU - 0.77 AU

Year: 376 Days

Day: 7.9 Hours

Environment

Temp: -139 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,528,239 km

• M1: 184,454 km (0.098 R)
• M2: 725,998 km (0.105 R)
• M3: 1,248,843 km (0.051 R)
• M4: 2,015,981 km (0.091 R)
• M5: 2,611,829 km (0.108 R)
• M6: 3,114,328 km (0.105 R)
• M7: 3,978,705 km (0.109 R)
• M8: 4,448,442 km (0.066 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265.9

Radius: 8.9

Gravity: 3.36 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.71 AU - 1.11 AU

Year: 569 Days

Day: 8 Hours

Environment

Temp: -158 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,528,239 km

• M1: 110,702 km (0.081 R)
• M2: 516,262 km (0.1 R)
• M3: 831,166 km (0.076 R)
• M4: 1,166,863 km (0.091 R)
• M5: 1,501,663 km (0.111 R)
• M6: 1,915,750 km (0.069 R)
• M7: 2,396,109 km (0.105 R)
• M8: 2,822,313 km (0.114 R)
• M9: 3,597,679 km (0.027 R)
• M10: 4,158,372 km (0.116 R)
• M11: 5,099,941 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317

Radius: 12.1

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.35 AU - 1.49 AU

Year: 1110 Days

Day: 10.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,528,239 km

• M1: 150,495 km (0.102 R)
• M2: 619,485 km (0.047 R)
• M3: 1,635,853 km (0.109 R)
• M4: 2,097,811 km (0.062 R)
• M5: 3,290,555 km (0.116 R)
• M6: 4,036,300 km (0.054 R)
• M7: 4,671,343 km (0.05 R)
• M8: 5,427,261 km (0.081 R)
• M9: 6,141,591 km (0.077 R)
• M10: 6,808,947 km (0.11 R)
• M11: 8,239,701 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.4

Radius: 8.2

Gravity: 12.78 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 2.3 AU - 2.72 AU

Year: 2609 Days

Day: 11.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 45,528,239 km

• M1: 102,026 km (0.079 R)
• M2: 442,062 km (0.087 R)
• M3: 746,045 km (0.116 R)
• M4: 1,191,996 km (0.037 R)
• M5: 1,614,161 km (0.079 R)
• M6: 1,903,483 km (0.047 R)
• M7: 3,502,086 km (0.117 R)
• M8: 3,870,247 km (0.113 R)
• M9: 4,307,072 km (0.096 R)
• M10: 5,156,489 km (0.047 R)
• M11: 5,429,505 km (0.076 R)
• M12: 6,853,228 km (0.106 R)
• M13: 8,040,287 km (0.078 R)
• M14: 8,578,989 km (0.094 R)
• M15: 9,358,843 km (0.118 R)
• M16: 9,766,198 km (0.108 R)
• M17: 11,430,773 km (0.076 R)
• M18: 11,982,341 km (0.111 R)
• M19: 13,138,433 km (0.104 R)
• M20: 14,710,707 km (0.067 R)
• M21: 15,722,587 km (0.115 R)
• M22: 16,245,431 km (0.08 R)
• M23: 18,224,611 km (0.061 R)
• M24: 18,627,328 km (0.072 R)
• M25: 20,606,359 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.1

Radius: 12.6

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.57 AU - 2.81 AU

Year: 2894 Days

Day: 14.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,528,239 km

• M1: 158,574 km (0.112 R)
• M2: 1,058,854 km (0.09 R)
• M3: 1,846,487 km (0.071 R)
• M4: 2,471,207 km (0.109 R)
• M5: 3,649,290 km (0.083 R)
• M6: 4,492,723 km (0.04 R)
• M7: 5,706,112 km (0.096 R)
• M8: 7,016,589 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.8

Radius: 8.5

Gravity: 8.58 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 4.62 AU - 5.08 AU

Year: 7007 Days

Day: 6.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 45,528,239 km

• M1: 106,962 km (0.084 R)
• M2: 384,467 km (0.118 R)
• M3: 761,603 km (0.084 R)
• M4: 1,300,753 km (0.11 R)
• M5: 1,642,585 km (0.054 R)
• M6: 1,998,179 km (0.042 R)
• M7: 3,297,735 km (0.101 R)
• M8: 3,772,410 km (0.107 R)
• M9: 4,291,963 km (0.088 R)
• M10: 4,858,340 km (0.119 R)
• M11: 5,203,912 km (0.095 R)
• M12: 6,340,107 km (0.058 R)
• M13: 6,930,720 km (0.081 R)
• M14: 7,865,258 km (0.083 R)
• M15: 8,713,178 km (0.042 R)
• M16: 10,213,495 km (0.079 R)
• M17: 11,123,050 km (0.075 R)
• M18: 11,827,208 km (0.108 R)
• M19: 12,667,948 km (0.076 R)
• M20: 14,350,774 km (0.102 R)
• M21: 15,490,560 km (0.109 R)
• M22: 19,414,512 km (0.09 R)
• M23: 21,643,371 km (0.103 R)
• M24: 23,872,379 km (0.093 R)
• M25: 25,901,226 km (0.086 R)
• M26: 30,298,805 km (0.096 R)
• M27: 33,286,125 km (0.098 R)
• M28: 34,219,316 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 197.4

Radius: 7.8

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 6.48 AU - 9.36 AU

Year: 14622 Days

Day: 24 Hours

Environment

Temp: -218 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 45,528,239 km

• M1: 97,538 km (0.09 R)
• M2: 452,683 km (0.09 R)
• M3: 771,626 km (0.076 R)
• M4: 1,262,905 km (0.06 R)
• M5: 1,572,573 km (0.064 R)
• M6: 1,826,590 km (0.069 R)
• M7: 2,401,046 km (0.092 R)
• M8: 3,780,189 km (0.111 R)
• M9: 4,625,117 km (0.04 R)
• M10: 5,152,749 km (0.065 R)
• M11: 5,654,800 km (0.094 R)
• M12: 7,553,346 km (0.026 R)
• M13: 8,243,142 km (0.12 R)
• M14: 8,842,132 km (0.116 R)
• M15: 10,271,240 km (0.114 R)
• M16: 11,374,824 km (0.069 R)
• M17: 12,666,601 km (0.047 R)
• M18: 13,638,987 km (0.115 R)
• M19: 15,095,173 km (0.114 R)
• M20: 16,989,681 km (0.095 R)
• M21: 19,258,183 km (0.116 R)
• M22: 25,085,469 km (0.076 R)
• M23: 25,797,704 km (0.109 R)
• M24: 26,158,833 km (0.045 R)
• M25: 29,464,049 km (0.111 R)
• M26: 30,860,694 km (0.069 R)
• M27: 31,678,247 km (0.053 R)
• M28: 32,196,603 km (0.105 R)
• M29: 34,109,212 km (0.118 R)
• M30: 35,984,122 km (0.1 R)
• M31: 37,810,563 km (0.083 R)
• M32: 38,628,564 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 213.7

Radius: 7.2

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 8.56 AU - 8.66 AU

Year: 16573 Days

Day: 24.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,528,239 km

• M1: 89,609 km (0.061 R)
• M2: 337,194 km (0.103 R)
• M3: 664,364 km (0.115 R)
• M4: 1,119,441 km (0.115 R)
• M5: 1,813,126 km (0.083 R)
• M6: 2,372,473 km (0.101 R)
• M7: 2,743,625 km (0.111 R)
• M8: 3,577,633 km (0.108 R)
• M9: 3,803,975 km (0.116 R)
• M10: 5,600,645 km (0.061 R)
• M11: 6,224,019 km (0.093 R)
• M12: 11,397,263 km (0.106 R)
• M13: 13,694,787 km (0.098 R)
• M14: 14,758,428 km (0.084 R)
• M15: 16,559,587 km (0.109 R)
• M16: 21,902,325 km (0.055 R)
• M17: 23,704,830 km (0.117 R)
• M18: 23,970,216 km (0.116 R)
• M19: 32,230,562 km (0.048 R)
• M20: 34,670,653 km (0.1 R)
• M21: 39,294,125 km (0.113 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: 270 - 17,783 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit