🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.62 AU - 0.66 AU

Year: 192 Days

Day: 12.6 Hours

Environment

Temp: 145 °C

Axial Tilt: 9.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 2.28 AU - 2.58 AU

Year: 1420 Days

Day: 46.4 Hours

Environment

Temp: -86 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,151,922 km

• M1: 769,681 km (0.118 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.97

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.75 AU - 3.47 AU

Year: 2055 Days

Day: 25.6 Hours

Environment

Temp: -109 °C

Axial Tilt: 9.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,151,922 km

• M1: 619,186 km (0.071 R)

Asteroid Belt

Center: 4.24 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.8

Radius: 13

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 4.8 AU - 5.94 AU

Year: 4663 Days

Day: 10 Hours

Environment

Temp: -140 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 72,151,922 km

• M1: 166,353 km (0.094 R)
• M2: 614,548 km (0.099 R)
• M3: 1,102,237 km (0.049 R)
• M4: 1,828,834 km (0.063 R)
• M5: 2,302,012 km (0.12 R)
• M6: 2,926,284 km (0.099 R)
• M7: 3,911,236 km (0.084 R)
• M8: 5,774,478 km (0.095 R)
• M9: 6,807,900 km (0.054 R)
• M10: 7,385,497 km (0.088 R)
• M11: 8,457,067 km (0.11 R)
• M12: 9,011,477 km (0.088 R)
• M13: 9,590,271 km (0.08 R)
• M14: 10,358,755 km (0.084 R)
• M15: 11,211,612 km (0.115 R)
• M16: 12,249,672 km (0.104 R)
• M17: 13,900,335 km (0.084 R)
• M18: 15,151,721 km (0.062 R)
• M19: 15,694,761 km (0.096 R)
• M20: 18,058,557 km (0.089 R)
• M21: 18,546,097 km (0.091 R)
• M22: 19,739,140 km (0.107 R)
• M23: 20,982,897 km (0.068 R)
• M24: 23,771,102 km (0.119 R)
• M25: 25,634,194 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.7

Radius: 8.2

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 6.44 AU - 6.7 AU

Year: 6311 Days

Day: 14.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 49.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,151,922 km

• M1: 102,175 km (0.062 R)
• M2: 682,017 km (0.094 R)
• M3: 1,907,822 km (0.099 R)
• M4: 3,530,211 km (0.097 R)
• M5: 3,892,686 km (0.104 R)
• M6: 4,186,496 km (0.072 R)
• M7: 4,617,787 km (0.025 R)
• M8: 5,402,278 km (0.096 R)
• M9: 6,002,166 km (0.036 R)
• M10: 8,215,915 km (0.1 R)
• M11: 8,854,249 km (0.114 R)
• M12: 9,324,435 km (0.05 R)
• M13: 11,057,377 km (0.091 R)
• M14: 11,929,084 km (0.104 R)
• M15: 12,747,384 km (0.118 R)
• M16: 13,145,015 km (0.09 R)
• M17: 14,281,660 km (0.109 R)
• M18: 17,529,280 km (0.031 R)
• M19: 20,962,402 km (0.108 R)
• M20: 22,152,153 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.3

Radius: 12.9

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 6.21 AU - 9.91 AU

Year: 8575 Days

Day: 10.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,151,922 km

• M1: 165,006 km (0.075 R)
• M2: 639,232 km (0.097 R)
• M3: 1,082,789 km (0.112 R)
• M4: 1,844,392 km (0.053 R)
• M5: 2,457,743 km (0.068 R)
• M6: 3,092,338 km (0.113 R)
• M7: 3,885,954 km (0.098 R)
• M8: 5,342,589 km (0.097 R)
• M9: 6,123,789 km (0.041 R)
• M10: 7,376,073 km (0.111 R)
• M11: 10,130,768 km (0.104 R)
• M12: 12,675,727 km (0.053 R)
• M13: 14,380,245 km (0.09 R)
• M14: 15,089,937 km (0.054 R)
• M15: 15,620,710 km (0.118 R)
• M16: 16,719,806 km (0.087 R)
• M17: 20,087,254 km (0.088 R)
• M18: 22,827,438 km (0.094 R)
• M19: 24,878,724 km (0.068 R)
• M20: 30,804,296 km (0.091 R)
• M21: 32,971,819 km (0.06 R)
• M22: 34,433,989 km (0.107 R)
• M23: 35,239,125 km (0.105 R)
• M24: 46,598,091 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.4

Radius: 10.9

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 9.77 AU - 13.67 AU

Year: 15036 Days

Day: 14.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,151,922 km

• M1: 136,433 km (0.099 R)
• M2: 876,045 km (0.114 R)
• M3: 2,068,939 km (0.026 R)
• M4: 3,282,626 km (0.119 R)
• M5: 4,871,505 km (0.119 R)
• M6: 6,465,919 km (0.115 R)
• M7: 9,452,641 km (0.084 R)
• M8: 12,826,821 km (0.107 R)
• M9: 14,653,710 km (0.105 R)
• M10: 17,044,733 km (0.07 R)
• M11: 19,185,777 km (0.111 R)
• M12: 22,724,814 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 969.5

Radius: 6.2

Gravity: 25.22 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 11.52 AU - 14.84 AU

Year: 17931 Days

Day: 16.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 72,151,922 km

• M1: 77,193 km (0.113 R)
• M2: 294,857 km (0.077 R)
• M3: 571,464 km (0.101 R)
• M4: 843,882 km (0.066 R)
• M5: 1,106,875 km (0.093 R)
• M6: 1,933,403 km (0.099 R)
• M7: 2,284,509 km (0.114 R)
• M8: 3,114,179 km (0.094 R)
• M9: 4,031,812 km (0.055 R)
• M10: 4,570,365 km (0.12 R)
• M11: 7,404,945 km (0.078 R)
• M12: 7,650,884 km (0.111 R)
• M13: 12,503,091 km (0.118 R)
• M14: 13,716,330 km (0.077 R)
• M15: 14,237,977 km (0.084 R)
• M16: 15,479,939 km (0.066 R)
• M17: 17,475,874 km (0.075 R)
• M18: 20,395,426 km (0.065 R)
• M19: 21,173,035 km (0.116 R)
• M20: 26,601,344 km (0.106 R)
• M21: 27,764,617 km (0.08 R)
• M22: 29,695,626 km (0.104 R)
• M23: 29,943,061 km (0.079 R)
• M24: 47,278,313 km (0.065 R)
• M25: 48,125,186 km (0.075 R)
• M26: 54,338,734 km (0.082 R)
• M27: 60,468,806 km (0.112 R)
• M28: 63,905,518 km (0.114 R)
• M29: 71,386,608 km (0.106 R)
• M30: 73,400,345 km (0.037 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 253.2

Radius: 6.1

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 15.19 AU - 22.27 AU

Year: 30376 Days

Day: 23.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,151,922 km

• M1: 77,791 km (0.085 R)
• M2: 468,840 km (0.111 R)
• M3: 964,308 km (0.101 R)
• M4: 3,300,428 km (0.106 R)
• M5: 4,417,476 km (0.111 R)
• M6: 5,454,039 km (0.039 R)
• M7: 5,687,262 km (0.093 R)
• M8: 16,275,351 km (0.056 R)
• M9: 22,440,279 km (0.075 R)
• M10: 23,040,166 km (0.091 R)
• M11: 37,955,972 km (0.106 R)
• M12: 47,701,974 km (0.068 R)
• M13: 48,030,790 km (0.093 R)
• M14: 56,017,820 km (0.079 R)
• M15: 66,880,271 km (0.104 R)
• M16: 68,121,186 km (0.117 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 497 - 19,913 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit