🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.63 AU - 0.67 AU

Year: 194 Days

Day: 17.4 Hours

Environment

Temp: 172 °C

Axial Tilt: 16.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 81,647,799 km

• M1: 120,576 km (0.084 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.14

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 1.26 AU - 1.28 AU

Year: 531 Days

Day: 17.9 Hours

Environment

Temp: 5 °C

Axial Tilt: 7.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 81,647,799 km

• M1: 183,706 km (0.028 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.46 AU - 1.92 AU

Year: 815 Days

Day: 30.9 Hours

Environment

Temp: -64 °C

Axial Tilt: 43.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.65 AU - 2.09 AU

Year: 948 Days

Day: 20.7 Hours

Environment

Temp: -71 °C

Axial Tilt: 5.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.19 AU - 2.19 AU

Year: 1202 Days

Day: 42.5 Hours

Environment

Temp: -81 °C

Axial Tilt: 36.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 81,647,799 km

• M1: 127,009 km (0.092 R)
• M2: 1,663,379 km (0.098 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136

Radius: 14

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 5.77 AU - 6.57 AU

Year: 5684 Days

Day: 6.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,647,799 km

• M1: 174,282 km (0.116 R)
• M2: 642,672 km (0.045 R)
• M3: 1,633,609 km (0.066 R)
• M4: 2,536,432 km (0.098 R)
• M5: 3,085,606 km (0.11 R)
• M6: 4,727,293 km (0.083 R)
• M7: 5,969,553 km (0.084 R)
• M8: 7,123,701 km (0.12 R)
• M9: 8,356,537 km (0.088 R)
• M10: 9,336,104 km (0.111 R)
• M11: 9,981,768 km (0.118 R)
• M12: 10,967,020 km (0.089 R)
• M13: 11,564,215 km (0.066 R)
• M14: 13,352,956 km (0.099 R)
• M15: 18,233,587 km (0.107 R)
• M16: 19,186,825 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.8

Radius: 11.6

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 7.75 AU - 8.09 AU

Year: 8266 Days

Day: 8.9 Hours

Environment

Temp: -167 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,647,799 km

• M1: 144,811 km (0.06 R)
• M2: 576,999 km (0.094 R)
• M3: 1,038,209 km (0.106 R)
• M4: 1,776,325 km (0.042 R)
• M5: 2,482,128 km (0.11 R)
• M6: 2,921,946 km (0.034 R)
• M7: 3,960,304 km (0.092 R)
• M8: 4,422,113 km (0.064 R)
• M9: 6,603,699 km (0.093 R)
• M10: 7,699,952 km (0.101 R)
• M11: 10,656,455 km (0.12 R)
• M12: 12,049,211 km (0.102 R)
• M13: 12,616,037 km (0.117 R)
• M14: 13,379,435 km (0.091 R)
• M15: 13,803,096 km (0.109 R)
• M16: 17,236,517 km (0.091 R)
• M17: 20,475,909 km (0.072 R)
• M18: 22,791,086 km (0.112 R)
• M19: 24,458,205 km (0.113 R)
• M20: 25,552,214 km (0.107 R)
• M21: 38,347,769 km (0.083 R)
• M22: 44,075,871 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.6

Radius: 9.2

Gravity: 8.84 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 9.22 AU - 9.4 AU

Year: 10535 Days

Day: 6.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 81,647,799 km

• M1: 114,442 km (0.066 R)
• M2: 486,791 km (0.115 R)
• M3: 920,924 km (0.105 R)
• M4: 1,246,150 km (0.068 R)
• M5: 4,762,149 km (0.052 R)
• M6: 5,078,848 km (0.112 R)
• M7: 5,933,052 km (0.119 R)
• M8: 7,924,648 km (0.025 R)
• M9: 8,600,082 km (0.109 R)
• M10: 9,659,684 km (0.1 R)
• M11: 11,352,982 km (0.093 R)
• M12: 12,807,074 km (0.109 R)
• M13: 15,523,173 km (0.05 R)
• M14: 16,724,294 km (0.088 R)
• M15: 17,015,561 km (0.107 R)
• M16: 21,631,553 km (0.06 R)
• M17: 24,132,530 km (0.101 R)
• M18: 25,452,582 km (0.077 R)
• M19: 29,383,116 km (0.088 R)
• M20: 31,769,651 km (0.06 R)
• M21: 32,668,734 km (0.117 R)
• M22: 33,354,042 km (0.109 R)
• M23: 39,830,134 km (0.096 R)
• M24: 44,537,530 km (0.062 R)
• M25: 48,118,454 km (0.109 R)
• M26: 51,117,892 km (0.071 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.3

Radius: 8.5

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 9.16 AU - 11.32 AU

Year: 12152 Days

Day: 11.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 81,647,799 km

• M1: 106,663 km (0.083 R)
• M2: 425,157 km (0.06 R)
• M3: 723,605 km (0.1 R)
• M4: 1,032,525 km (0.068 R)
• M5: 1,457,682 km (0.067 R)
• M6: 2,789,252 km (0.082 R)
• M7: 3,245,825 km (0.059 R)
• M8: 3,646,149 km (0.101 R)
• M9: 3,967,934 km (0.085 R)
• M10: 6,390,073 km (0.088 R)
• M11: 8,544,282 km (0.082 R)
• M12: 13,016,810 km (0.118 R)
• M13: 13,835,260 km (0.085 R)
• M14: 14,554,227 km (0.113 R)
• M15: 17,082,132 km (0.118 R)
• M16: 18,842,301 km (0.078 R)
• M17: 21,229,733 km (0.066 R)
• M18: 24,748,724 km (0.089 R)
• M19: 25,034,605 km (0.09 R)
• M20: 31,781,918 km (0.093 R)
• M21: 32,573,740 km (0.106 R)
• M22: 34,314,760 km (0.066 R)
• M23: 35,148,169 km (0.117 R)
• M24: 37,478,156 km (0.096 R)
• M25: 38,744,951 km (0.111 R)
• M26: 40,171,067 km (0.115 R)
• M27: 41,096,629 km (0.089 R)
• M28: 45,367,050 km (0.113 R)
• M29: 45,938,813 km (0.053 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 424.2

Radius: 3

Gravity: 47.13 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 14.72 AU - 21.22 AU

Year: 28251 Days

Day: 15.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 81,647,799 km

• M1: 37,399 km (0.117 R)
• M2: 270,922 km (0.047 R)
• M3: 505,342 km (0.095 R)
• M4: 2,813,038 km (0.105 R)
• M5: 3,536,344 km (0.081 R)
• M6: 3,781,834 km (0.086 R)
• M7: 4,622,275 km (0.055 R)
• M8: 4,915,636 km (0.102 R)
• M9: 5,580,001 km (0.1 R)
• M10: 8,085,017 km (0.065 R)
• M11: 9,697,532 km (0.102 R)
• M12: 12,888,006 km (0.056 R)
• M13: 13,394,245 km (0.034 R)
• M14: 22,553,225 km (0.085 R)
• M15: 27,671,417 km (0.051 R)
• M16: 31,395,357 km (0.064 R)
• M17: 41,509,220 km (0.084 R)
• M18: 62,761,094 km (0.039 R)
• M19: 69,567,049 km (0.037 R)
• M20: 69,787,407 km (0.096 R)
• M21: 78,030,100 km (0.065 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 204 - 19,245 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit