🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.53 AU - 0.65 AU

Year: 297 Days

Day: 26.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 3.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.3

Radius: 8.7

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.99 AU - 1.13 AU

Year: 716 Days

Day: 14.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,787,817 km

• M1: 110,104 km (0.114 R)
• M2: 394,639 km (0.032 R)
• M3: 1,067,680 km (0.107 R)
• M4: 2,258,629 km (0.061 R)
• M5: 3,062,568 km (0.054 R)
• M6: 3,831,201 km (0.112 R)
• M7: 4,130,696 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.7

Radius: 10.9

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.21 AU - 1.55 AU

Year: 1063 Days

Day: 10.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 67,787,817 km

• M1: 135,984 km (0.101 R)
• M2: 499,507 km (0.102 R)
• M3: 904,469 km (0.089 R)
• M4: 1,287,738 km (0.07 R)
• M5: 1,749,547 km (0.077 R)
• M6: 2,180,688 km (0.118 R)
• M7: 3,164,593 km (0.093 R)
• M8: 3,703,894 km (0.058 R)
• M9: 4,101,525 km (0.048 R)
• M10: 5,298,308 km (0.044 R)
• M11: 5,968,506 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.6

Radius: 14.9

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.53 AU - 1.63 AU

Year: 1303 Days

Day: 6.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 67,787,817 km

• M1: 185,352 km (0.058 R)
• M2: 990,936 km (0.032 R)
• M3: 1,539,661 km (0.115 R)
• M4: 2,063,104 km (0.118 R)
• M5: 2,758,136 km (0.116 R)
• M6: 3,300,877 km (0.062 R)
• M7: 4,206,243 km (0.056 R)
• M8: 4,775,463 km (0.111 R)
• M9: 6,002,465 km (0.081 R)
• M10: 6,800,121 km (0.039 R)
• M11: 7,430,825 km (0.095 R)
• M12: 8,492,970 km (0.105 R)
• M13: 9,653,999 km (0.119 R)
• M14: 10,750,402 km (0.106 R)
• M15: 11,608,496 km (0.087 R)
• M16: 12,290,961 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.9

Radius: 13.1

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 2.02 AU - 2.6 AU

Year: 2303 Days

Day: 10.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,787,817 km

• M1: 162,912 km (0.055 R)
• M2: 691,741 km (0.119 R)
• M3: 1,175,690 km (0.079 R)
• M4: 1,848,581 km (0.08 R)
• M5: 2,378,008 km (0.099 R)
• M6: 2,993,753 km (0.107 R)
• M7: 3,781,984 km (0.072 R)
• M8: 4,299,892 km (0.101 R)
• M9: 5,568,182 km (0.103 R)
• M10: 6,097,609 km (0.047 R)
• M11: 6,685,828 km (0.118 R)
• M12: 7,231,262 km (0.061 R)
• M13: 7,694,417 km (0.038 R)
• M14: 8,411,739 km (0.102 R)
• M15: 9,426,461 km (0.041 R)
• M16: 9,880,790 km (0.069 R)
• M17: 10,590,033 km (0.074 R)
• M18: 11,441,694 km (0.118 R)
• M19: 12,804,381 km (0.079 R)
• M20: 13,403,072 km (0.111 R)
• M21: 13,978,724 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.1

Radius: 8

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.43 AU - 2.75 AU

Year: 2734 Days

Day: 11.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 67,787,817 km

• M1: 99,483 km (0.119 R)
• M2: 355,445 km (0.025 R)
• M3: 621,130 km (0.092 R)
• M4: 869,912 km (0.076 R)
• M5: 1,132,007 km (0.115 R)
• M6: 1,419,833 km (0.075 R)
• M7: 1,810,733 km (0.094 R)
• M8: 2,233,795 km (0.071 R)
• M9: 2,482,876 km (0.103 R)
• M10: 2,929,575 km (0.094 R)
• M11: 3,636,874 km (0.119 R)
• M12: 4,937,328 km (0.097 R)
• M13: 5,340,345 km (0.107 R)
• M14: 6,010,693 km (0.06 R)
• M15: 7,961,150 km (0.088 R)
• M16: 8,516,008 km (0.08 R)
• M17: 11,146,089 km (0.076 R)
• M18: 11,683,743 km (0.108 R)
• M19: 11,998,497 km (0.112 R)
• M20: 14,770,546 km (0.036 R)
• M21: 15,513,299 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 993.9

Radius: 3.8

Gravity: 68.83 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 6.89 AU - 8.47 AU

Year: 13962 Days

Day: 19.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 67,787,817 km

• M1: 47,273 km (0.052 R)
• M2: 622,327 km (0.117 R)
• M3: 749,037 km (0.064 R)
• M4: 1,170,454 km (0.068 R)
• M5: 1,751,193 km (0.05 R)
• M6: 2,548,699 km (0.082 R)
• M7: 2,828,896 km (0.096 R)
• M8: 3,314,341 km (0.115 R)
• M9: 3,562,673 km (0.091 R)
• M10: 5,433,095 km (0.077 R)
• M11: 5,700,427 km (0.116 R)
• M12: 9,682,423 km (0.091 R)
• M13: 18,140,088 km (0.11 R)
• M14: 18,736,535 km (0.119 R)
• M15: 20,788,270 km (0.1 R)
• M16: 27,275,432 km (0.111 R)
• M17: 29,316,695 km (0.044 R)
• M18: 33,955,874 km (0.119 R)
• M19: 34,341,687 km (0.115 R)
• M20: 41,063,868 km (0.071 R)
• M21: 43,435,293 km (0.102 R)
• M22: 57,395,766 km (0.079 R)
• M23: 59,048,224 km (0.07 R)
• M24: 59,419,676 km (0.069 R)
• M25: 64,982,323 km (0.031 R)
• M26: 66,776,750 km (0.114 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: 403 - 15,235 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit