🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.57 AU - 0.67 AU

Year: 183 Days

Day: 39.4 Hours

Environment

Temp: 177 °C

Axial Tilt: 31.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.87

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.59 AU - 0.69 AU

Year: 192 Days

Day: 22.8 Hours

Environment

Temp: 198 °C

Axial Tilt: 14.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.6 AU - 0.84 AU

Year: 229 Days

Day: 30.9 Hours

Environment

Temp: 151 °C

Axial Tilt: 37.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.21 AU - 1.21 AU

Year: 499 Days

Day: 18.1 Hours

Environment

Temp: 2 °C

Axial Tilt: 35.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.08 AU - 3.68 AU

Year: 2329 Days

Day: 28.8 Hours

Environment

Temp: -124 °C

Axial Tilt: 36.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.8

Radius: 13.5

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 4.27 AU - 6.63 AU

Year: 4768 Days

Day: 8.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 88,100,559 km

• M1: 168,148 km (0.085 R)
• M2: 704,157 km (0.113 R)
• M3: 1,142,928 km (0.104 R)
• M4: 1,772,585 km (0.111 R)
• M5: 2,289,895 km (0.066 R)
• M6: 2,730,460 km (0.078 R)
• M7: 3,189,277 km (0.115 R)
• M8: 3,699,855 km (0.108 R)
• M9: 4,482,102 km (0.107 R)
• M10: 5,400,034 km (0.045 R)
• M11: 7,057,878 km (0.09 R)
• M12: 7,679,607 km (0.06 R)
• M13: 8,451,083 km (0.075 R)
• M14: 11,634,675 km (0.103 R)
• M15: 14,590,879 km (0.071 R)
• M16: 17,144,215 km (0.103 R)
• M17: 17,826,531 km (0.032 R)
• M18: 18,916,501 km (0.118 R)
• M19: 21,513,221 km (0.1 R)
• M20: 26,574,117 km (0.097 R)
• M21: 28,768,867 km (0.047 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.9

Radius: 9.7

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 9.21 AU - 11.33 AU

Year: 12333 Days

Day: 9.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 88,100,559 km

• M1: 120,725 km (0.117 R)
• M2: 491,579 km (0.109 R)
• M3: 1,603,390 km (0.057 R)
• M4: 1,905,578 km (0.033 R)
• M5: 3,291,004 km (0.092 R)
• M6: 4,584,277 km (0.058 R)
• M7: 10,757,134 km (0.032 R)
• M8: 11,535,043 km (0.11 R)
• M9: 14,400,740 km (0.076 R)
• M10: 17,068,519 km (0.034 R)
• M11: 19,102,601 km (0.098 R)
• M12: 20,829,110 km (0.103 R)
• M13: 24,006,419 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 725.3

Radius: 6.3

Gravity: 18.27 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 13.03 AU - 21.03 AU

Year: 26336 Days

Day: 21.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 88,100,559 km

• M1: 78,389 km (0.073 R)
• M2: 297,401 km (0.046 R)
• M3: 527,632 km (0.038 R)
• M4: 1,016,518 km (0.111 R)
• M5: 1,317,658 km (0.081 R)
• M6: 3,901,064 km (0.118 R)
• M7: 4,208,039 km (0.025 R)
• M8: 5,815,617 km (0.078 R)
• M9: 7,793,899 km (0.106 R)
• M10: 8,847,218 km (0.079 R)
• M11: 9,318,003 km (0.051 R)
• M12: 9,929,708 km (0.119 R)
• M13: 10,567,743 km (0.105 R)
• M14: 10,830,587 km (0.08 R)
• M15: 16,252,163 km (0.037 R)
• M16: 17,137,483 km (0.07 R)
• M17: 17,591,962 km (0.057 R)
• M18: 18,525,004 km (0.113 R)
• M19: 20,590,950 km (0.052 R)
• M20: 29,608,411 km (0.106 R)
• M21: 29,868,860 km (0.116 R)
• M22: 35,114,959 km (0.056 R)
• M23: 40,301,517 km (0.101 R)
• M24: 44,766,864 km (0.1 R)
• M25: 53,499,639 km (0.075 R)
• M26: 61,168,325 km (0.069 R)
• M27: 61,591,089 km (0.104 R)
• M28: 63,086,170 km (0.078 R)
• M29: 63,734,228 km (0.117 R)
• M30: 67,716,224 km (0.098 R)
• M31: 72,804,347 km (0.102 R)
• M32: 78,888,792 km (0.102 R)
• M33: 83,473,667 km (0.078 R)
• M34: 86,627,041 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 587

Radius: 5.2

Gravity: 21.71 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 14.39 AU - 20.17 AU

Year: 26918 Days

Day: 15.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 88,100,559 km

• M1: 65,075 km (0.11 R)
• M2: 373,845 km (0.081 R)
• M3: 727,494 km (0.102 R)
• M4: 1,666,221 km (0.119 R)
• M5: 1,895,555 km (0.096 R)
• M6: 2,145,832 km (0.114 R)
• M7: 2,662,094 km (0.071 R)
• M8: 3,228,472 km (0.046 R)
• M9: 4,003,239 km (0.117 R)
• M10: 4,416,428 km (0.111 R)
• M11: 5,167,260 km (0.06 R)
• M12: 7,512,955 km (0.119 R)
• M13: 7,874,982 km (0.045 R)
• M14: 10,232,943 km (0.063 R)
• M15: 11,201,739 km (0.12 R)
• M16: 11,605,803 km (0.112 R)
• M17: 14,004,305 km (0.084 R)
• M18: 14,631,869 km (0.113 R)
• M19: 17,599,441 km (0.06 R)
• M20: 20,742,942 km (0.109 R)
• M21: 21,249,779 km (0.092 R)
• M22: 23,034,781 km (0.086 R)
• M23: 25,259,750 km (0.072 R)
• M24: 29,237,408 km (0.082 R)
• M25: 31,175,897 km (0.07 R)
• M26: 32,109,238 km (0.05 R)
• M27: 32,650,782 km (0.077 R)
• M28: 33,752,272 km (0.09 R)
• M29: 35,020,712 km (0.047 R)
• M30: 46,160,817 km (0.058 R)
• M31: 52,804,907 km (0.072 R)
• M32: 55,476,426 km (0.091 R)
• M33: 56,845,396 km (0.037 R)
• M34: 65,752,004 km (0.091 R)
• M35: 67,948,699 km (0.092 R)
• M36: 71,794,561 km (0.079 R)
• M37: 72,952,748 km (0.082 R)
• M38: 83,177,314 km (0.06 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 18,449 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit