🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.48 AU - 0.72 AU

Year: 163 Days

Day: 31.7 Hours

Environment

Temp: 218 °C

Axial Tilt: 5.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 55,372,389 km

• M1: 24,235 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.36

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.86 AU - 1.06 AU

Year: 329 Days

Day: 41.6 Hours

Environment

Temp: 134 °C

Axial Tilt: 20.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.1 AU - 1.46 AU

Year: 507 Days

Day: 17.6 Hours

Environment

Temp: 31 °C

Axial Tilt: 44.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 55,372,389 km

• M1: 38,596 km (0.046 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.49 AU - 2.27 AU

Year: 902 Days

Day: 46.5 Hours

Environment

Temp: -54 °C

Axial Tilt: 3.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,372,389 km

• M1: 23,636 km (0.106 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 2.11 AU - 2.11 AU

Year: 1072 Days

Day: 33.9 Hours

Environment

Temp: -67 °C

Axial Tilt: 14.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 2.28 AU - 2.38 AU

Year: 1244 Days

Day: 38.7 Hours

Environment

Temp: -60 °C

Axial Tilt: 15.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 14.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 673.5

Radius: 7.7

Gravity: 11.36 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 12.64 AU - 15.82 AU

Year: 18780 Days

Day: 24.7 Hours

Environment

Temp: -192 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 55,372,389 km

• M1: 95,743 km (0.117 R)
• M2: 387,010 km (0.049 R)
• M3: 658,231 km (0.102 R)
• M4: 1,413,849 km (0.028 R)
• M5: 2,968,770 km (0.092 R)
• M6: 3,448,081 km (0.07 R)
• M7: 4,134,586 km (0.098 R)
• M8: 5,387,468 km (0.11 R)
• M9: 6,480,580 km (0.117 R)
• M10: 7,763,232 km (0.12 R)
• M11: 8,883,570 km (0.034 R)
• M12: 9,820,502 km (0.096 R)
• M13: 11,378,414 km (0.099 R)
• M14: 14,232,442 km (0.117 R)
• M15: 16,460,852 km (0.097 R)
• M16: 16,867,160 km (0.092 R)
• M17: 17,447,300 km (0.106 R)
• M18: 19,719,393 km (0.087 R)
• M19: 22,478,127 km (0.071 R)
• M20: 24,629,494 km (0.098 R)
• M21: 27,592,430 km (0.118 R)
• M22: 32,279,630 km (0.091 R)
• M23: 33,173,627 km (0.064 R)
• M24: 36,090,636 km (0.063 R)
• M25: 39,898,799 km (0.038 R)
• M26: 40,928,182 km (0.09 R)
• M27: 43,966,665 km (0.092 R)
• M28: 44,435,056 km (0.036 R)
• M29: 45,860,125 km (0.115 R)
• M30: 48,137,004 km (0.047 R)
• M31: 49,640,014 km (0.119 R)
• M32: 67,872,704 km (0.11 R)
• M33: 69,338,463 km (0.103 R)
• M34: 70,825,167 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 823

Radius: 4.6

Gravity: 38.89 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 13 AU - 21.04 AU

Year: 24565 Days

Day: 15.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 122.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 55,372,389 km

• M1: 58,642 km (0.116 R)
• M2: 363,972 km (0.106 R)
• M3: 693,087 km (0.089 R)
• M4: 2,413,313 km (0.108 R)
• M5: 2,713,705 km (0.103 R)
• M6: 3,542,777 km (0.07 R)
• M7: 4,275,657 km (0.105 R)
• M8: 4,791,620 km (0.063 R)
• M9: 5,348,124 km (0.068 R)
• M10: 6,683,734 km (0.072 R)
• M11: 7,636,223 km (0.087 R)
• M12: 8,906,160 km (0.107 R)
• M13: 9,081,638 km (0.094 R)
• M14: 9,993,587 km (0.09 R)
• M15: 11,856,379 km (0.058 R)
• M16: 12,140,017 km (0.094 R)
• M17: 14,017,021 km (0.081 R)
• M18: 14,254,583 km (0.085 R)
• M19: 16,079,078 km (0.084 R)
• M20: 16,779,346 km (0.109 R)
• M21: 17,227,242 km (0.109 R)
• M22: 27,817,574 km (0.119 R)
• M23: 31,047,392 km (0.095 R)
• M24: 31,451,008 km (0.105 R)
• M25: 31,722,079 km (0.072 R)
• M26: 40,756,444 km (0.115 R)
• M27: 46,291,715 km (0.034 R)
• M28: 47,171,799 km (0.076 R)
• M29: 52,117,654 km (0.056 R)
• M30: 52,878,659 km (0.035 R)
• M31: 55,600,143 km (0.039 R)
• M32: 58,618,130 km (0.058 R)
• M33: 61,109,833 km (0.072 R)
• M34: 75,598,985 km (0.117 R)
• M35: 83,632,390 km (0.114 R)
• M36: 84,413,441 km (0.053 R)
• M37: 86,254,841 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 20.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 97.7

Radius: 3.9

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 18.04 AU - 23.3 AU

Year: 32877 Days

Day: 21.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,372,389 km

• M1: 71,807 km (0.074 R)
• M2: 270,922 km (0.104 R)
• M3: 2,716,697 km (0.07 R)
• M4: 3,108,195 km (0.105 R)
• M5: 3,833,595 km (0.034 R)
• M6: 5,940,232 km (0.103 R)
• M7: 11,526,815 km (0.12 R)
• M8: 19,106,042 km (0.057 R)
• M9: 20,270,811 km (0.118 R)
• M10: 33,904,562 km (0.112 R)
• M11: 42,429,995 km (0.093 R)
• M12: 46,736,768 km (0.092 R)
• M13: 49,609,945 km (0.115 R)

Kuiper Belt

Range: 31.4 - 61.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 521 - 12,955 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit