🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.27

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.7 AU - 0.7 AU

Year: 213 Days

Day: 27.3 Hours

Environment

Temp: 121 °C

Axial Tilt: 109.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.66 AU - 1.74 AU

Year: 806 Days

Day: 38.3 Hours

Environment

Temp: -38 °C

Axial Tilt: 6.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.5 AU - 2.46 AU

Year: 1013 Days

Day: 30.7 Hours

Environment

Temp: -62 °C

Axial Tilt: 18.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.42

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 2.24 AU - 2.72 AU

Year: 1419 Days

Day: 33 Hours

Environment

Temp: -76 °C

Axial Tilt: 5.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,175,443 km

• M1: 432,039 km (0.08 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.9 AU - 3.64 AU

Year: 2149 Days

Day: 36.9 Hours

Environment

Temp: -111 °C

Axial Tilt: 2.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.64

Radius: 0.84

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 3.25 AU - 3.41 AU

Year: 2208 Days

Day: 14.1 Hours

Environment

Temp: -106 °C

Axial Tilt: 0.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.78 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 962.6

Radius: 15

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 7.45 AU - 8.99 AU

Year: 8565 Days

Day: 14 Hours

Environment

Temp: -155 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 72,175,443 km

• M1: 186,549 km (0.111 R)
• M2: 693,237 km (0.079 R)
• M3: 1,528,292 km (0.119 R)
• M4: 2,032,586 km (0.118 R)
• M5: 2,709,965 km (0.04 R)
• M6: 3,227,574 km (0.102 R)
• M7: 4,408,500 km (0.111 R)
• M8: 6,510,051 km (0.1 R)
• M9: 7,286,763 km (0.089 R)
• M10: 9,308,877 km (0.053 R)
• M11: 11,135,018 km (0.08 R)
• M12: 13,741,312 km (0.062 R)
• M13: 16,309,459 km (0.076 R)
• M14: 24,514,603 km (0.119 R)
• M15: 29,809,171 km (0.102 R)
• M16: 30,974,239 km (0.04 R)
• M17: 31,949,767 km (0.066 R)
• M18: 32,611,438 km (0.12 R)
• M19: 33,734,619 km (0.107 R)
• M20: 40,250,205 km (0.066 R)
• M21: 41,022,279 km (0.115 R)
• M22: 47,989,202 km (0.114 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.6

Radius: 8.5

Gravity: 11.88 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 8.6 AU - 11.54 AU

Year: 11614 Days

Day: 5.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,175,443 km

• M1: 110,254 km (0.109 R)
• M2: 781,200 km (0.09 R)
• M3: 1,142,479 km (0.095 R)
• M4: 1,411,306 km (0.103 R)
• M5: 2,080,458 km (0.095 R)
• M6: 2,549,447 km (0.112 R)
• M7: 4,450,237 km (0.12 R)
• M8: 5,474,534 km (0.08 R)
• M9: 8,259,298 km (0.084 R)
• M10: 9,230,937 km (0.087 R)
• M11: 11,871,189 km (0.057 R)
• M12: 13,363,428 km (0.084 R)
• M13: 13,755,225 km (0.105 R)
• M14: 33,168,690 km (0.073 R)
• M15: 37,767,329 km (0.081 R)
• M16: 44,632,674 km (0.068 R)
• M17: 45,069,201 km (0.091 R)
• M18: 53,095,725 km (0.096 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.6

Radius: 9.7

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 10.6 AU - 12.32 AU

Year: 14100 Days

Day: 5.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,175,443 km

• M1: 121,473 km (0.107 R)
• M2: 622,926 km (0.091 R)
• M3: 2,473,002 km (0.077 R)
• M4: 4,285,530 km (0.06 R)
• M5: 7,524,623 km (0.12 R)
• M6: 9,205,804 km (0.119 R)
• M7: 16,832,902 km (0.095 R)
• M8: 18,218,477 km (0.11 R)
• M9: 19,595,526 km (0.071 R)
• M10: 20,953,725 km (0.067 R)
• M11: 23,107,336 km (0.114 R)
• M12: 28,484,631 km (0.108 R)
• M13: 29,237,557 km (0.066 R)
• M14: 32,035,486 km (0.096 R)
• M15: 35,007,099 km (0.074 R)
• M16: 35,498,976 km (0.077 R)
• M17: 45,891,092 km (0.089 R)

Planet 10 - Ice Giant

Semi-Major Axis: 14.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 631.6

Radius: 5.9

Gravity: 18.14 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 11.53 AU - 16.67 AU

Year: 19242 Days

Day: 21.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 72,175,443 km

• M1: 73,752 km (0.033 R)
• M2: 385,663 km (0.083 R)
• M3: 616,343 km (0.069 R)
• M4: 1,107,922 km (0.079 R)
• M5: 2,000,722 km (0.096 R)
• M6: 2,664,488 km (0.062 R)
• M7: 5,569,379 km (0.085 R)
• M8: 6,469,958 km (0.105 R)
• M9: 7,091,537 km (0.1 R)
• M10: 8,047,318 km (0.119 R)
• M11: 9,140,280 km (0.065 R)
• M12: 9,694,092 km (0.107 R)
• M13: 10,211,551 km (0.062 R)
• M14: 10,929,620 km (0.067 R)
• M15: 11,617,172 km (0.096 R)
• M16: 16,278,791 km (0.093 R)
• M17: 17,424,113 km (0.115 R)
• M18: 18,535,027 km (0.106 R)
• M19: 20,614,587 km (0.114 R)
• M20: 24,592,992 km (0.112 R)
• M21: 25,338,139 km (0.094 R)
• M22: 26,761,713 km (0.119 R)
• M23: 29,887,111 km (0.108 R)
• M24: 30,980,672 km (0.037 R)
• M25: 34,685,912 km (0.12 R)
• M26: 36,713,412 km (0.113 R)
• M27: 39,537,969 km (0.043 R)
• M28: 42,656,187 km (0.077 R)
• M29: 46,415,881 km (0.065 R)
• M30: 50,561,238 km (0.076 R)
• M31: 52,111,969 km (0.086 R)
• M32: 63,268,530 km (0.107 R)
• M33: 66,082,765 km (0.116 R)

Kuiper Belt

Range: 30.2 - 57.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 184 - 16,214 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit