🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.36

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.51 AU - 0.65 AU

Year: 158 Days

Day: 42.3 Hours

Environment

Temp: 238 °C

Axial Tilt: 37 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.49 AU - 0.73 AU

Year: 171 Days

Day: 43 Hours

Environment

Temp: 231 °C

Axial Tilt: 47.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.67 AU - 0.71 AU

Year: 205 Days

Day: 34.5 Hours

Environment

Temp: 130 °C

Axial Tilt: 36.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.79 AU - 0.99 AU

Year: 301 Days

Day: 35.9 Hours

Environment

Temp: 129 °C

Axial Tilt: 27.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 68,788,977 km

• M1: 621,579 km (0.117 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.42

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.86 AU - 1.92 AU

Year: 931 Days

Day: 40.8 Hours

Environment

Temp: -48 °C

Axial Tilt: 46.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 2.97 AU - 3.81 AU

Year: 2235 Days

Day: 30.2 Hours

Environment

Temp: -113 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.6

Radius: 13.2

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 5.29 AU - 6.97 AU

Year: 5436 Days

Day: 7.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 160.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,788,977 km

• M1: 164,258 km (0.104 R)
• M2: 666,758 km (0.106 R)
• M3: 1,183,768 km (0.105 R)
• M4: 1,742,366 km (0.094 R)
• M5: 2,189,514 km (0.109 R)
• M6: 3,859,475 km (0.09 R)
• M7: 4,404,610 km (0.112 R)
• M8: 5,390,011 km (0.119 R)
• M9: 6,073,374 km (0.084 R)
• M10: 6,484,768 km (0.084 R)
• M11: 7,188,926 km (0.079 R)
• M12: 8,398,125 km (0.114 R)
• M13: 9,194,435 km (0.067 R)
• M14: 10,799,769 km (0.088 R)
• M15: 13,952,395 km (0.096 R)
• M16: 15,012,446 km (0.111 R)
• M17: 16,065,764 km (0.098 R)
• M18: 16,733,270 km (0.11 R)
• M19: 18,059,006 km (0.092 R)
• M20: 22,531,833 km (0.092 R)
• M21: 24,943,051 km (0.058 R)
• M22: 28,302,421 km (0.069 R)
• M23: 30,826,137 km (0.12 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385.1

Radius: 9.5

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 9.05 AU - 12.03 AU

Year: 12256 Days

Day: 12.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,788,977 km

• M1: 127,457 km (0.071 R)
• M2: 448,046 km (0.113 R)
• M3: 782,696 km (0.078 R)
• M4: 1,220,270 km (0.114 R)
• M5: 1,626,727 km (0.115 R)
• M6: 2,226,465 km (0.103 R)
• M7: 2,539,424 km (0.111 R)
• M8: 4,235,864 km (0.057 R)
• M9: 6,326,344 km (0.055 R)
• M10: 6,960,340 km (0.09 R)
• M11: 10,274,232 km (0.053 R)
• M12: 11,688,231 km (0.063 R)
• M13: 17,266,885 km (0.094 R)
• M14: 19,181,589 km (0.095 R)
• M15: 20,587,360 km (0.106 R)
• M16: 21,727,296 km (0.103 R)
• M17: 22,144,374 km (0.119 R)
• M18: 23,081,007 km (0.119 R)
• M19: 24,221,541 km (0.111 R)
• M20: 28,859,823 km (0.11 R)
• M21: 29,976,870 km (0.108 R)
• M22: 33,834,401 km (0.109 R)
• M23: 34,507,890 km (0.069 R)
• M24: 34,961,920 km (0.105 R)
• M25: 35,419,839 km (0.09 R)
• M26: 35,997,885 km (0.088 R)
• M27: 37,054,345 km (0.106 R)
• M28: 37,530,366 km (0.074 R)
• M29: 40,724,879 km (0.096 R)
• M30: 41,614,986 km (0.101 R)
• M31: 44,631,029 km (0.069 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.5

Radius: 13.4

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 8.36 AU - 13.6 AU

Year: 13031 Days

Day: 13.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 68,788,977 km

• M1: 166,652 km (0.107 R)
• M2: 940,821 km (0.067 R)
• M3: 2,287,052 km (0.047 R)
• M4: 2,725,823 km (0.03 R)
• M5: 3,317,931 km (0.098 R)
• M6: 4,366,762 km (0.116 R)
• M7: 5,082,737 km (0.103 R)
• M8: 5,556,065 km (0.111 R)
• M9: 6,021,763 km (0.09 R)
• M10: 6,513,641 km (0.114 R)
• M11: 6,950,766 km (0.075 R)
• M12: 7,665,096 km (0.12 R)
• M13: 8,243,890 km (0.075 R)
• M14: 8,708,990 km (0.076 R)
• M15: 10,476,488 km (0.046 R)
• M16: 12,472,274 km (0.044 R)
• M17: 15,747,420 km (0.102 R)
• M18: 19,151,071 km (0.071 R)
• M19: 20,640,467 km (0.105 R)
• M20: 27,478,885 km (0.108 R)
• M21: 31,237,531 km (0.117 R)
• M22: 31,914,462 km (0.032 R)
• M23: 33,064,720 km (0.059 R)
• M24: 34,004,643 km (0.08 R)
• M25: 35,937,747 km (0.046 R)
• M26: 37,056,739 km (0.069 R)
• M27: 38,584,881 km (0.092 R)
• M28: 43,841,451 km (0.106 R)
• M29: 48,046,498 km (0.095 R)
• M30: 48,797,778 km (0.078 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 222.3

Radius: 3.6

Gravity: 17.15 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 18.09 AU - 20.35 AU

Year: 30179 Days

Day: 17.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 68,788,977 km

• M1: 46,675 km (0.105 R)
• M2: 202,855 km (0.104 R)
• M3: 508,932 km (0.085 R)
• M4: 681,418 km (0.081 R)
• M5: 1,184,666 km (0.06 R)
• M6: 1,443,470 km (0.109 R)
• M7: 2,173,059 km (0.108 R)
• M8: 3,199,001 km (0.036 R)
• M9: 4,817,500 km (0.088 R)
• M10: 8,132,439 km (0.043 R)
• M11: 9,710,697 km (0.111 R)
• M12: 10,809,493 km (0.1 R)
• M13: 11,050,944 km (0.106 R)
• M14: 12,708,788 km (0.075 R)
• M15: 12,910,147 km (0.036 R)
• M16: 13,113,749 km (0.058 R)
• M17: 13,596,801 km (0.12 R)
• M18: 18,836,616 km (0.107 R)
• M19: 19,186,226 km (0.102 R)
• M20: 20,813,253 km (0.115 R)
• M21: 29,395,682 km (0.051 R)
• M22: 29,865,869 km (0.11 R)
• M23: 30,341,141 km (0.057 R)
• M24: 30,460,670 km (0.077 R)
• M25: 32,542,174 km (0.05 R)
• M26: 41,227,827 km (0.117 R)
• M27: 49,992,467 km (0.069 R)
• M28: 50,999,261 km (0.107 R)
• M29: 53,053,090 km (0.052 R)
• M30: 56,778,974 km (0.099 R)
• M31: 58,242,939 km (0.096 R)
• M32: 59,732,036 km (0.101 R)
• M33: 62,591,899 km (0.084 R)
• M34: 63,957,278 km (0.091 R)

Kuiper Belt

Range: 30.6 - 58.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 395 - 18,830 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit