🌌 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 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30

Radius: 10.8

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.6 AU - 0.72 AU

Year: 358 Days

Day: 9.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 81,369,239 km

• M1: 134,339 km (0.099 R)
• M2: 571,464 km (0.047 R)
• M3: 1,099,096 km (0.086 R)
• M4: 1,763,310 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.7

Radius: 12.5

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.86 AU - 0.9 AU

Year: 550 Days

Day: 11.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 81,369,239 km

• M1: 155,432 km (0.047 R)
• M2: 747,840 km (0.087 R)
• M3: 1,328,728 km (0.064 R)
• M4: 2,154,658 km (0.111 R)
• M5: 2,806,157 km (0.104 R)
• M6: 3,197,954 km (0.09 R)
• M7: 3,833,745 km (0.083 R)
• M8: 4,794,911 km (0.058 R)
• M9: 5,448,654 km (0.116 R)
• M10: 6,892,273 km (0.103 R)
• M11: 7,455,808 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.6

Radius: 8.1

Gravity: 8.44 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 2.64 AU - 3.3 AU

Year: 3413 Days

Day: 8.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,369,239 km

• M1: 100,829 km (0.065 R)
• M2: 491,130 km (0.12 R)
• M3: 991,983 km (0.11 R)
• M4: 2,297,225 km (0.086 R)
• M5: 2,733,303 km (0.095 R)
• M6: 3,082,763 km (0.106 R)
• M7: 3,405,895 km (0.104 R)
• M8: 4,162,860 km (0.104 R)
• M9: 4,742,402 km (0.08 R)
• M10: 5,100,539 km (0.049 R)
• M11: 5,658,390 km (0.099 R)
• M12: 6,006,654 km (0.108 R)
• M13: 6,599,660 km (0.08 R)
• M14: 7,262,229 km (0.116 R)
• M15: 8,034,602 km (0.065 R)
• M16: 8,860,682 km (0.028 R)
• M17: 9,184,561 km (0.098 R)
• M18: 13,810,427 km (0.078 R)
• M19: 14,246,504 km (0.108 R)
• M20: 14,641,592 km (0.081 R)
• M21: 17,223,801 km (0.06 R)
• M22: 18,128,868 km (0.1 R)
• M23: 20,218,601 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.8

Radius: 8

Gravity: 6.89 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 4.27 AU - 4.67 AU

Year: 6302 Days

Day: 12.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 81,369,239 km

• M1: 99,483 km (0.092 R)
• M2: 426,803 km (0.045 R)
• M3: 716,424 km (0.089 R)
• M4: 1,130,661 km (0.056 R)
• M5: 1,884,185 km (0.107 R)
• M6: 2,158,697 km (0.104 R)
• M7: 2,880,806 km (0.117 R)
• M8: 3,187,482 km (0.089 R)
• M9: 3,473,513 km (0.076 R)
• M10: 4,387,257 km (0.087 R)
• M11: 4,980,562 km (0.076 R)
• M12: 5,684,869 km (0.086 R)
• M13: 6,583,204 km (0.117 R)
• M14: 7,608,847 km (0.111 R)
• M15: 8,697,919 km (0.082 R)
• M16: 10,997,089 km (0.054 R)
• M17: 12,236,807 km (0.07 R)
• M18: 12,890,549 km (0.098 R)
• M19: 13,726,801 km (0.077 R)
• M20: 16,755,560 km (0.079 R)
• M21: 19,317,124 km (0.072 R)
• M22: 20,411,133 km (0.033 R)
• M23: 22,797,070 km (0.032 R)
• M24: 24,251,909 km (0.11 R)
• M25: 25,605,172 km (0.102 R)
• M26: 27,345,593 km (0.093 R)
• M27: 29,876,490 km (0.104 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 272.8

Radius: 4

Gravity: 17.05 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 6.66 AU - 6.88 AU

Year: 11747 Days

Day: 21.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,369,239 km

• M1: 68,366 km (0.038 R)
• M2: 242,349 km (0.07 R)
• M3: 428,598 km (0.106 R)
• M4: 813,064 km (0.12 R)
• M5: 1,745,358 km (0.111 R)
• M6: 5,039,952 km (0.08 R)
• M7: 5,953,696 km (0.116 R)
• M8: 6,680,891 km (0.117 R)
• M9: 8,519,300 km (0.041 R)
• M10: 9,715,035 km (0.068 R)
• M11: 9,854,311 km (0.094 R)
• M12: 11,580,970 km (0.099 R)
• M13: 12,930,941 km (0.115 R)
• M14: 26,048,879 km (0.081 R)
• M15: 31,793,437 km (0.063 R)
• M16: 32,514,050 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 282.5

Radius: 7.9

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 5.43 AU - 8.58 AU

Year: 12350 Days

Day: 17.1 Hours

Environment

Temp: -240 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 81,369,239 km

• M1: 99,632 km (0.096 R)
• M2: 406,757 km (0.108 R)
• M3: 738,415 km (0.119 R)
• M4: 1,097,450 km (0.065 R)
• M5: 1,378,844 km (0.063 R)
• M6: 1,869,973 km (0.096 R)
• M7: 2,382,196 km (0.026 R)
• M8: 2,759,931 km (0.113 R)
• M9: 3,540,982 km (0.106 R)
• M10: 4,244,391 km (0.059 R)
• M11: 5,533,176 km (0.067 R)
• M12: 6,658,003 km (0.105 R)
• M13: 7,725,982 km (0.039 R)
• M14: 10,197,488 km (0.113 R)
• M15: 13,152,346 km (0.104 R)
• M16: 14,211,947 km (0.104 R)
• M17: 14,824,551 km (0.111 R)
• M18: 15,647,189 km (0.073 R)
• M19: 18,803,256 km (0.032 R)
• M20: 19,243,971 km (0.114 R)
• M21: 20,069,751 km (0.05 R)
• M22: 24,556,341 km (0.116 R)
• M23: 25,887,014 km (0.097 R)
• M24: 27,078,411 km (0.107 R)
• M25: 30,066,479 km (0.1 R)
• M26: 31,795,083 km (0.115 R)
• M27: 33,588,761 km (0.102 R)
• M28: 35,560,461 km (0.108 R)
• M29: 36,461,040 km (0.051 R)
• M30: 37,956,720 km (0.112 R)
• M31: 38,542,844 km (0.062 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 986.9

Radius: 4.3

Gravity: 53.37 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 7.81 AU - 10.47 AU

Year: 18427 Days

Day: 24.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 81,369,239 km

• M1: 53,556 km (0.095 R)
• M2: 204,799 km (0.112 R)
• M3: 380,278 km (0.063 R)
• M4: 568,322 km (0.115 R)
• M5: 1,108,819 km (0.054 R)
• M6: 1,386,024 km (0.104 R)
• M7: 3,879,073 km (0.093 R)
• M8: 4,105,863 km (0.088 R)
• M9: 4,989,239 km (0.103 R)
• M10: 5,296,812 km (0.063 R)
• M11: 7,713,117 km (0.111 R)
• M12: 8,388,551 km (0.078 R)
• M13: 8,878,783 km (0.111 R)
• M14: 9,102,731 km (0.041 R)
• M15: 12,091,098 km (0.07 R)
• M16: 14,487,357 km (0.111 R)
• M17: 21,469,987 km (0.09 R)
• M18: 25,396,782 km (0.077 R)
• M19: 25,961,663 km (0.041 R)
• M20: 26,419,582 km (0.034 R)
• M21: 27,116,409 km (0.088 R)
• M22: 28,304,964 km (0.115 R)
• M23: 32,605,454 km (0.056 R)
• M24: 32,871,140 km (0.116 R)
• M25: 33,272,511 km (0.086 R)
• M26: 38,790,578 km (0.058 R)
• M27: 39,690,260 km (0.064 R)
• M28: 42,157,278 km (0.059 R)
• M29: 48,249,652 km (0.111 R)
• M30: 51,056,556 km (0.09 R)
• M31: 53,231,710 km (0.087 R)
• M32: 57,185,581 km (0.096 R)
• M33: 62,755,708 km (0.079 R)
• M34: 62,960,957 km (0.08 R)
• M35: 68,676,493 km (0.076 R)
• M36: 71,100,876 km (0.109 R)
• M37: 79,193,373 km (0.068 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: 399 - 14,715 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit