🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 284.7

Radius: 11.4

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.67 AU - 0.69 AU

Year: 368 Days

Day: 7.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 75,356,342 km

• M1: 141,819 km (0.096 R)
• M2: 848,220 km (0.087 R)
• M3: 1,619,696 km (0.099 R)
• M4: 2,102,299 km (0.066 R)
• M5: 2,492,749 km (0.054 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 340.7

Radius: 9.2

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.58 AU - 0.96 AU

Year: 443 Days

Day: 6.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 49.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,356,342 km

• M1: 114,442 km (0.079 R)
• M2: 520,750 km (0.049 R)
• M3: 951,742 km (0.077 R)
• M4: 1,342,790 km (0.088 R)
• M5: 1,699,881 km (0.07 R)
• M6: 2,208,962 km (0.082 R)
• M7: 2,509,055 km (0.09 R)
• M8: 3,670,533 km (0.089 R)
• M9: 3,994,712 km (0.083 R)
• M10: 4,456,820 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.4

Radius: 14.5

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.8 AU - 0.88 AU

Year: 505 Days

Day: 6.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,356,342 km

• M1: 180,265 km (0.09 R)
• M2: 635,342 km (0.073 R)
• M3: 1,327,681 km (0.08 R)
• M4: 1,780,813 km (0.118 R)
• M5: 2,442,784 km (0.089 R)
• M6: 3,690,729 km (0.096 R)
• M7: 4,464,599 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.7

Radius: 12.3

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.79 AU - 1.31 AU

Year: 706 Days

Day: 14.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 75,356,342 km

• M1: 153,039 km (0.086 R)
• M2: 542,741 km (0.085 R)
• M3: 940,971 km (0.096 R)
• M4: 1,400,984 km (0.111 R)
• M5: 1,835,865 km (0.115 R)
• M6: 2,795,984 km (0.12 R)
• M7: 3,247,321 km (0.102 R)
• M8: 4,065,621 km (0.115 R)
• M9: 5,116,546 km (0.105 R)
• M10: 6,149,071 km (0.081 R)
• M11: 6,555,528 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.8

Radius: 13.6

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.88 AU - 1.3 AU

Year: 747 Days

Day: 11.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,356,342 km

• M1: 169,195 km (0.101 R)
• M2: 744,100 km (0.089 R)
• M3: 1,176,288 km (0.042 R)
• M4: 1,692,251 km (0.115 R)
• M5: 2,148,375 km (0.093 R)
• M6: 3,172,821 km (0.115 R)
• M7: 4,227,935 km (0.093 R)
• M8: 4,734,773 km (0.077 R)
• M9: 5,245,500 km (0.089 R)
• M10: 5,676,641 km (0.084 R)
• M11: 6,675,207 km (0.057 R)
• M12: 7,434,565 km (0.087 R)
• M13: 8,451,532 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 403.7

Radius: 11.3

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.38 AU - 1.88 AU

Year: 1365 Days

Day: 13.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 75,356,342 km

• M1: 140,472 km (0.067 R)
• M2: 626,965 km (0.061 R)
• M3: 1,018,014 km (0.118 R)
• M4: 1,400,386 km (0.106 R)
• M5: 1,805,347 km (0.108 R)
• M6: 2,224,072 km (0.103 R)
• M7: 3,417,563 km (0.099 R)
• M8: 4,081,329 km (0.059 R)
• M9: 4,540,894 km (0.094 R)
• M10: 5,544,097 km (0.042 R)
• M11: 8,957,472 km (0.086 R)
• M12: 9,356,000 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.9

Radius: 9.2

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.79 AU - 1.97 AU

Year: 1691 Days

Day: 14 Hours

Environment

Temp: -192 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 75,356,342 km

• M1: 114,742 km (0.094 R)
• M2: 590,313 km (0.04 R)
• M3: 948,750 km (0.114 R)
• M4: 1,326,933 km (0.068 R)
• M5: 1,657,395 km (0.118 R)
• M6: 2,464,625 km (0.102 R)
• M7: 3,248,368 km (0.061 R)
• M8: 3,682,651 km (0.111 R)
• M9: 4,344,921 km (0.085 R)
• M10: 5,362,336 km (0.106 R)
• M11: 5,713,591 km (0.104 R)
• M12: 6,485,068 km (0.073 R)
• M13: 6,884,045 km (0.088 R)
• M14: 7,399,559 km (0.028 R)
• M15: 7,835,488 km (0.112 R)
• M16: 8,126,755 km (0.03 R)
• M17: 8,758,955 km (0.077 R)
• M18: 9,072,812 km (0.098 R)
• M19: 10,467,363 km (0.115 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.5

Radius: 10.7

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 5.09 AU - 6.03 AU

Year: 8600 Days

Day: 14.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 71.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 75,356,342 km

• M1: 133,142 km (0.073 R)
• M2: 683,363 km (0.105 R)
• M3: 1,255,874 km (0.096 R)
• M4: 1,624,932 km (0.076 R)
• M5: 2,377,110 km (0.097 R)
• M6: 3,850,200 km (0.068 R)
• M7: 4,535,957 km (0.033 R)
• M8: 7,458,800 km (0.108 R)
• M9: 10,285,901 km (0.112 R)
• M10: 10,665,281 km (0.113 R)
• M11: 11,202,487 km (0.104 R)
• M12: 11,860,418 km (0.074 R)
• M13: 12,977,316 km (0.071 R)
• M14: 13,931,900 km (0.108 R)
• M15: 15,481,435 km (0.07 R)
• M16: 19,132,520 km (0.065 R)
• M17: 19,926,137 km (0.116 R)
• M18: 27,083,947 km (0.097 R)
• M19: 35,463,821 km (0.087 R)
• M20: 36,881,261 km (0.037 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 719.1

Radius: 5.9

Gravity: 20.66 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 8.21 AU - 10.81 AU

Year: 19239 Days

Day: 19.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 75,356,342 km

• M1: 84,523 km (0.117 R)
• M2: 343,028 km (0.115 R)
• M3: 597,943 km (0.117 R)
• M4: 1,278,164 km (0.115 R)
• M5: 2,729,862 km (0.057 R)
• M6: 3,498,645 km (0.111 R)
• M7: 4,608,213 km (0.113 R)
• M8: 7,118,166 km (0.117 R)
• M9: 7,449,076 km (0.093 R)
• M10: 9,148,957 km (0.083 R)
• M11: 10,177,742 km (0.112 R)
• M12: 10,476,638 km (0.093 R)
• M13: 10,719,884 km (0.071 R)
• M14: 10,904,937 km (0.039 R)
• M15: 11,601,464 km (0.084 R)
• M16: 12,530,318 km (0.032 R)
• M17: 19,167,826 km (0.039 R)
• M18: 27,591,233 km (0.059 R)
• M19: 29,601,080 km (0.102 R)
• M20: 29,843,728 km (0.118 R)
• M21: 31,833,380 km (0.061 R)
• M22: 34,845,832 km (0.107 R)
• M23: 39,345,437 km (0.053 R)
• M24: 46,962,362 km (0.082 R)
• M25: 47,458,129 km (0.077 R)
• M26: 47,790,685 km (0.079 R)
• M27: 50,680,168 km (0.07 R)
• M28: 54,045,073 km (0.105 R)
• M29: 55,137,736 km (0.119 R)
• M30: 55,321,293 km (0.06 R)
• M31: 56,245,209 km (0.113 R)
• M32: 57,555,836 km (0.091 R)
• M33: 65,849,841 km (0.1 R)
• M34: 67,515,015 km (0.062 R)
• M35: 68,357,999 km (0.097 R)
• M36: 69,421,640 km (0.085 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 310 - 11,391 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit