🌌 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 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.1

Radius: 9.7

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.45 AU - 0.69 AU

Year: 287 Days

Day: 6.6 Hours

Environment

Temp: -144 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 82,375,383 km

• M1: 121,025 km (0.077 R)
• M2: 470,336 km (0.11 R)
• M3: 1,852,470 km (0.099 R)
• M4: 2,359,757 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.4

Radius: 10.5

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.72 AU - 0.96 AU

Year: 513 Days

Day: 12.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,375,383 km

• M1: 132,843 km (0.088 R)
• M2: 666,608 km (0.058 R)
• M3: 1,076,955 km (0.119 R)
• M4: 1,578,557 km (0.118 R)
• M5: 2,548,998 km (0.097 R)
• M6: 3,036,538 km (0.035 R)
• M7: 3,373,582 km (0.091 R)
• M8: 3,842,122 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.3

Radius: 8.1

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.73 AU - 2.51 AU

Year: 2058 Days

Day: 15 Hours

Environment

Temp: -205 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,375,383 km

• M1: 100,829 km (0.055 R)
• M2: 546,930 km (0.095 R)
• M3: 860,786 km (0.055 R)
• M4: 1,202,019 km (0.081 R)
• M5: 1,497,475 km (0.11 R)
• M6: 2,027,949 km (0.11 R)
• M7: 2,348,537 km (0.057 R)
• M8: 2,893,223 km (0.059 R)
• M9: 3,549,209 km (0.097 R)
• M10: 4,317,843 km (0.118 R)
• M11: 4,597,292 km (0.109 R)
• M12: 8,020,690 km (0.115 R)
• M13: 8,337,089 km (0.119 R)
• M14: 8,661,866 km (0.066 R)
• M15: 9,023,145 km (0.11 R)
• M16: 9,510,834 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973.3

Radius: 13.9

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 2.44 AU - 2.8 AU

Year: 2828 Days

Day: 12.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 82,375,383 km

• M1: 172,935 km (0.089 R)
• M2: 1,212,640 km (0.076 R)
• M3: 1,703,621 km (0.094 R)
• M4: 2,217,190 km (0.074 R)
• M5: 2,934,063 km (0.11 R)
• M6: 3,469,474 km (0.032 R)
• M7: 4,485,543 km (0.094 R)
• M8: 4,929,699 km (0.091 R)
• M9: 5,798,862 km (0.042 R)
• M10: 6,798,026 km (0.084 R)
• M11: 8,351,152 km (0.11 R)
• M12: 9,285,540 km (0.081 R)
• M13: 10,693,256 km (0.078 R)
• M14: 12,328,959 km (0.112 R)
• M15: 13,018,605 km (0.066 R)
• M16: 14,027,344 km (0.098 R)
• M17: 14,932,710 km (0.082 R)
• M18: 16,254,557 km (0.077 R)
• M19: 18,768,399 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.6

Radius: 13.5

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 3.05 AU - 4.49 AU

Year: 4881 Days

Day: 13.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,375,383 km

• M1: 170,990 km (0.099 R)
• M2: 630,256 km (0.089 R)
• M3: 1,294,321 km (0.091 R)
• M4: 1,833,920 km (0.079 R)
• M5: 2,375,165 km (0.044 R)
• M6: 2,887,538 km (0.108 R)
• M7: 3,805,919 km (0.093 R)
• M8: 4,535,807 km (0.083 R)
• M9: 6,536,081 km (0.114 R)
• M10: 7,202,689 km (0.054 R)
• M11: 7,847,755 km (0.093 R)
• M12: 8,887,310 km (0.094 R)
• M13: 10,253,737 km (0.095 R)
• M14: 12,468,833 km (0.043 R)
• M15: 13,210,390 km (0.048 R)
• M16: 13,688,804 km (0.099 R)
• M17: 14,478,082 km (0.119 R)
• M18: 18,948,365 km (0.115 R)
• M19: 19,991,511 km (0.08 R)
• M20: 21,660,425 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 124.2

Radius: 14.1

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.3 AU - 4.66 AU

Year: 5295 Days

Day: 8.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,375,383 km

• M1: 175,478 km (0.117 R)
• M2: 746,045 km (0.099 R)
• M3: 1,360,593 km (0.099 R)
• M4: 2,452,956 km (0.102 R)
• M5: 2,912,970 km (0.119 R)
• M6: 3,431,177 km (0.058 R)
• M7: 3,897,324 km (0.063 R)
• M8: 4,871,056 km (0.111 R)
• M9: 5,415,742 km (0.101 R)
• M10: 6,231,350 km (0.102 R)
• M11: 12,320,282 km (0.108 R)
• M12: 12,906,407 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.5

Radius: 12.8

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 5.44 AU - 6.02 AU

Year: 9147 Days

Day: 10.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 82,375,383 km

• M1: 159,322 km (0.119 R)
• M2: 603,627 km (0.089 R)
• M3: 1,039,107 km (0.112 R)
• M4: 1,519,765 km (0.093 R)
• M5: 2,004,462 km (0.115 R)
• M6: 3,407,092 km (0.12 R)
• M7: 3,862,467 km (0.08 R)
• M8: 4,331,457 km (0.109 R)
• M9: 5,198,077 km (0.103 R)
• M10: 5,738,724 km (0.098 R)
• M11: 7,122,055 km (0.085 R)
• M12: 8,202,750 km (0.106 R)
• M13: 9,482,111 km (0.111 R)
• M14: 10,588,238 km (0.092 R)
• M15: 13,056,154 km (0.113 R)
• M16: 13,937,884 km (0.117 R)
• M17: 15,885,648 km (0.091 R)
• M18: 21,821,991 km (0.078 R)
• M19: 27,733,351 km (0.058 R)
• M20: 30,492,085 km (0.098 R)
• M21: 32,891,186 km (0.09 R)
• M22: 33,754,366 km (0.072 R)
• M23: 35,413,556 km (0.113 R)
• M24: 37,944,602 km (0.104 R)
• M25: 39,133,905 km (0.043 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 784.2

Radius: 5.7

Gravity: 24.14 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 8.9 AU - 11.08 AU

Year: 21056 Days

Day: 24.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 82,375,383 km

• M1: 71,807 km (0.113 R)
• M2: 264,489 km (0.098 R)
• M3: 567,126 km (0.096 R)
• M4: 1,326,335 km (0.119 R)
• M5: 1,782,608 km (0.052 R)
• M6: 2,475,695 km (0.111 R)
• M7: 3,110,140 km (0.097 R)
• M8: 3,569,555 km (0.097 R)
• M9: 3,910,937 km (0.102 R)
• M10: 4,587,120 km (0.11 R)
• M11: 5,066,581 km (0.057 R)
• M12: 7,081,963 km (0.108 R)
• M13: 7,323,713 km (0.068 R)
• M14: 8,780,647 km (0.087 R)
• M15: 11,980,545 km (0.095 R)
• M16: 15,717,799 km (0.103 R)
• M17: 18,296,867 km (0.07 R)
• M18: 29,528,525 km (0.079 R)
• M19: 32,485,028 km (0.08 R)
• M20: 33,152,983 km (0.105 R)
• M21: 37,353,541 km (0.11 R)
• M22: 39,279,015 km (0.098 R)
• M23: 42,686,705 km (0.105 R)
• M24: 43,810,933 km (0.083 R)
• M25: 45,285,071 km (0.068 R)
• M26: 72,208,050 km (0.083 R)
• M27: 79,447,839 km (0.079 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: 296 - 15,094 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit