🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.4

Radius: 12.6

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.66 AU - 0.74 AU

Year: 404 Days

Day: 9.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,751,488 km

• M1: 156,779 km (0.119 R)
• M2: 680,371 km (0.064 R)
• M3: 1,153,400 km (0.054 R)
• M4: 1,684,472 km (0.067 R)
• M5: 2,258,329 km (0.069 R)
• M6: 2,657,457 km (0.105 R)
• M7: 3,070,496 km (0.103 R)
• M8: 4,150,593 km (0.08 R)
• M9: 4,621,377 km (0.118 R)
• M10: 5,191,645 km (0.109 R)
• M11: 5,722,418 km (0.032 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 931.4

Radius: 8.1

Gravity: 14.2 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.55 AU - 0.91 AU

Year: 431 Days

Day: 5.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,751,488 km

• M1: 100,679 km (0.084 R)
• M2: 366,814 km (0.029 R)
• M3: 629,358 km (0.113 R)
• M4: 918,082 km (0.091 R)
• M5: 1,228,647 km (0.081 R)
• M6: 1,515,875 km (0.046 R)
• M7: 2,360,654 km (0.075 R)
• M8: 2,886,641 km (0.1 R)
• M9: 3,513,755 km (0.092 R)
• M10: 4,199,960 km (0.089 R)
• M11: 4,522,194 km (0.075 R)
• M12: 4,845,176 km (0.114 R)
• M13: 5,434,891 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.4

Radius: 13.6

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.49 AU - 1.71 AU

Year: 1397 Days

Day: 6.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,751,488 km

• M1: 170,242 km (0.116 R)
• M2: 595,549 km (0.088 R)
• M3: 1,149,061 km (0.119 R)
• M4: 1,635,703 km (0.094 R)
• M5: 2,226,914 km (0.057 R)
• M6: 2,658,504 km (0.096 R)
• M7: 3,829,107 km (0.103 R)
• M8: 4,418,224 km (0.118 R)
• M9: 4,844,129 km (0.077 R)
• M10: 5,779,415 km (0.108 R)
• M11: 6,781,271 km (0.09 R)
• M12: 7,511,459 km (0.081 R)
• M13: 8,121,519 km (0.104 R)
• M14: 8,644,962 km (0.117 R)
• M15: 10,726,167 km (0.111 R)
• M16: 12,694,127 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.7

Radius: 13.8

Gravity: 2.3 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.53 AU - 1.95 AU

Year: 1584 Days

Day: 7.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,751,488 km

• M1: 171,738 km (0.079 R)
• M2: 709,692 km (0.096 R)
• M3: 1,146,518 km (0.075 R)
• M4: 1,626,877 km (0.102 R)
• M5: 2,583,705 km (0.078 R)
• M6: 3,097,125 km (0.114 R)
• M7: 5,283,647 km (0.112 R)
• M8: 6,277,426 km (0.094 R)
• M9: 7,573,243 km (0.113 R)
• M10: 8,865,319 km (0.063 R)
• M11: 10,591,230 km (0.091 R)
• M12: 12,097,082 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.6

Radius: 11.8

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.76 AU - 2.76 AU

Year: 2345 Days

Day: 8 Hours

Environment

Temp: -197 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,751,488 km

• M1: 147,055 km (0.089 R)
• M2: 560,842 km (0.109 R)
• M3: 998,416 km (0.096 R)
• M4: 1,882,390 km (0.115 R)
• M5: 2,492,450 km (0.087 R)
• M6: 2,916,111 km (0.073 R)
• M7: 3,352,638 km (0.107 R)
• M8: 3,891,190 km (0.111 R)
• M9: 4,422,412 km (0.063 R)
• M10: 5,334,211 km (0.116 R)
• M11: 6,673,561 km (0.106 R)
• M12: 7,467,627 km (0.046 R)
• M13: 7,935,569 km (0.08 R)
• M14: 9,565,737 km (0.099 R)
• M15: 10,043,253 km (0.046 R)
• M16: 11,737,599 km (0.072 R)
• M17: 13,938,482 km (0.104 R)
• M18: 14,601,201 km (0.119 R)
• M19: 15,887,443 km (0.082 R)
• M20: 19,607,494 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.4

Radius: 14.7

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.97 AU - 2.87 AU

Year: 2599 Days

Day: 9.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,751,488 km

• M1: 185,202 km (0.083 R)
• M2: 848,519 km (0.114 R)
• M3: 2,219,284 km (0.053 R)
• M4: 3,301,475 km (0.084 R)
• M5: 4,413,137 km (0.112 R)
• M6: 5,645,375 km (0.088 R)
• M7: 9,004,745 km (0.045 R)
• M8: 9,622,285 km (0.044 R)
• M9: 10,198,536 km (0.106 R)
• M10: 12,106,357 km (0.083 R)
• M11: 13,022,195 km (0.107 R)
• M12: 13,855,605 km (0.105 R)
• M13: 14,416,298 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 13.6

Radius: 13.8

Gravity: 0.07 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.9 AU - 4.5 AU

Year: 4913 Days

Day: 10.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 57,751,488 km

• M1: 171,589 km (0.059 R)
• M2: 1,214,585 km (0.05 R)
• M3: 1,931,757 km (0.095 R)
• M4: 3,726,483 km (0.107 R)
• M5: 4,661,470 km (0.112 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.8

Radius: 9.8

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 3.59 AU - 5.59 AU

Year: 6788 Days

Day: 8.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,751,488 km

• M1: 122,072 km (0.103 R)
• M2: 461,210 km (0.086 R)
• M3: 1,031,926 km (0.097 R)
• M4: 1,953,449 km (0.05 R)
• M5: 2,820,069 km (0.071 R)
• M6: 4,679,721 km (0.101 R)
• M7: 5,502,808 km (0.108 R)
• M8: 7,564,716 km (0.084 R)
• M9: 8,589,162 km (0.12 R)
• M10: 9,359,591 km (0.1 R)
• M11: 22,243,259 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 513.9

Radius: 6.4

Gravity: 12.55 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 7.79 AU - 7.97 AU

Year: 15269 Days

Day: 23.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 57,751,488 km

• M1: 83,326 km (0.093 R)
• M2: 334,052 km (0.074 R)
• M3: 790,475 km (0.056 R)
• M4: 1,104,930 km (0.09 R)
• M5: 1,359,246 km (0.111 R)
• M6: 2,171,114 km (0.082 R)
• M7: 2,977,297 km (0.099 R)
• M8: 3,370,739 km (0.111 R)
• M9: 3,606,954 km (0.065 R)
• M10: 4,083,573 km (0.11 R)
• M11: 4,664,910 km (0.063 R)
• M12: 9,313,066 km (0.111 R)
• M13: 9,885,577 km (0.094 R)
• M14: 10,371,321 km (0.027 R)
• M15: 11,158,356 km (0.075 R)
• M16: 18,053,920 km (0.117 R)
• M17: 27,977,644 km (0.066 R)
• M18: 30,728,749 km (0.09 R)
• M19: 35,999,680 km (0.064 R)
• M20: 36,506,817 km (0.085 R)
• M21: 37,795,453 km (0.078 R)
• M22: 40,736,547 km (0.117 R)
• M23: 48,287,350 km (0.091 R)
• M24: 49,369,990 km (0.12 R)
• M25: 49,838,979 km (0.101 R)
• M26: 51,263,600 km (0.082 R)
• M27: 57,578,575 km (0.118 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 261 - 15,861 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit