🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.58 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.49

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.92 AU - 1.4 AU

Year: 523 Days

Day: 33.3 Hours

Environment

Temp: -52 °C

Axial Tilt: 8.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,837,256 km

• M1: 509,082 km (0.05 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.93 AU - 1.51 AU

Year: 565 Days

Day: 17.6 Hours

Environment

Temp: -64 °C

Axial Tilt: 24.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,837,256 km

• M1: 60,587 km (0.091 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.11 AU - 1.33 AU

Year: 565 Days

Day: 33.5 Hours

Environment

Temp: -57 °C

Axial Tilt: 11.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.21 AU - 1.55 AU

Year: 679 Days

Day: 40.2 Hours

Environment

Temp: -79 °C

Axial Tilt: 39.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,837,256 km

• M1: 16,456 km (0.037 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.5

Radius: 12

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.69 AU - 4.73 AU

Year: 3619 Days

Day: 8.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 75,837,256 km

• M1: 150,346 km (0.108 R)
• M2: 801,246 km (0.079 R)
• M3: 1,827,787 km (0.12 R)
• M4: 3,358,622 km (0.044 R)
• M5: 5,283,498 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.1

Radius: 12.5

Gravity: 4.9 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 3.51 AU - 5.71 AU

Year: 4147 Days

Day: 7.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 75,837,256 km

• M1: 155,432 km (0.091 R)
• M2: 606,171 km (0.1 R)
• M3: 1,152,801 km (0.115 R)
• M4: 1,605,784 km (0.031 R)
• M5: 2,281,517 km (0.095 R)
• M6: 2,695,006 km (0.079 R)
• M7: 3,371,188 km (0.083 R)
• M8: 3,782,133 km (0.086 R)
• M9: 4,226,589 km (0.119 R)
• M10: 5,919,289 km (0.075 R)
• M11: 6,336,517 km (0.108 R)
• M12: 9,033,617 km (0.032 R)
• M13: 9,915,496 km (0.113 R)
• M14: 11,944,193 km (0.111 R)
• M15: 14,716,691 km (0.097 R)
• M16: 15,152,918 km (0.042 R)
• M17: 16,166,144 km (0.055 R)
• M18: 19,805,561 km (0.029 R)
• M19: 26,198,178 km (0.105 R)
• M20: 27,409,920 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.2

Radius: 12.2

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 4.55 AU - 5.29 AU

Year: 4572 Days

Day: 6.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 75,837,256 km

• M1: 159,322 km (0.111 R)
• M2: 648,058 km (0.093 R)
• M3: 1,201,570 km (0.067 R)
• M4: 2,102,000 km (0.097 R)
• M5: 3,390,935 km (0.088 R)
• M6: 4,250,375 km (0.077 R)
• M7: 5,249,688 km (0.032 R)
• M8: 5,818,460 km (0.118 R)
• M9: 8,139,919 km (0.074 R)
• M10: 10,453,600 km (0.1 R)
• M11: 10,898,504 km (0.102 R)
• M12: 11,956,909 km (0.056 R)
• M13: 14,277,770 km (0.088 R)
• M14: 15,596,476 km (0.118 R)
• M15: 16,071,449 km (0.07 R)
• M16: 18,651,414 km (0.076 R)
• M17: 20,664,403 km (0.098 R)
• M18: 21,302,138 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.7

Radius: 8.2

Gravity: 14.5 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 4.31 AU - 6.17 AU

Year: 5026 Days

Day: 5.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 75,837,256 km

• M1: 102,026 km (0.099 R)
• M2: 386,262 km (0.119 R)
• M3: 755,918 km (0.051 R)
• M4: 1,279,062 km (0.095 R)
• M5: 1,660,985 km (0.067 R)
• M6: 1,981,125 km (0.117 R)
• M7: 3,035,939 km (0.064 R)
• M8: 4,002,192 km (0.094 R)
• M9: 4,608,961 km (0.087 R)
• M10: 5,785,698 km (0.1 R)
• M11: 6,165,227 km (0.04 R)
• M12: 6,834,678 km (0.117 R)
• M13: 7,331,343 km (0.111 R)
• M14: 7,851,943 km (0.036 R)
• M15: 9,562,595 km (0.069 R)
• M16: 11,507,966 km (0.108 R)
• M17: 12,262,537 km (0.1 R)
• M18: 13,982,015 km (0.058 R)
• M19: 14,435,895 km (0.118 R)
• M20: 15,553,092 km (0.094 R)
• M21: 16,474,914 km (0.104 R)
• M22: 23,893,323 km (0.112 R)
• M23: 25,202,604 km (0.05 R)
• M24: 26,130,110 km (0.101 R)
• M25: 29,232,621 km (0.099 R)
• M26: 29,788,078 km (0.107 R)
• M27: 31,787,603 km (0.048 R)
• M28: 32,080,366 km (0.109 R)
• M29: 33,370,049 km (0.064 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 299.8

Radius: 9.8

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 5.12 AU - 5.98 AU

Year: 5478 Days

Day: 11.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 75,837,256 km

• M1: 122,521 km (0.114 R)
• M2: 1,262,456 km (0.064 R)
• M3: 1,661,883 km (0.105 R)
• M4: 2,559,320 km (0.096 R)
• M5: 3,589,900 km (0.114 R)
• M6: 4,517,706 km (0.113 R)
• M7: 5,955,790 km (0.12 R)
• M8: 8,437,170 km (0.05 R)
• M9: 8,909,152 km (0.089 R)
• M10: 10,596,765 km (0.086 R)
• M11: 11,494,203 km (0.027 R)
• M12: 12,862,874 km (0.11 R)
• M13: 16,030,908 km (0.109 R)
• M14: 17,154,837 km (0.105 R)
• M15: 20,645,703 km (0.095 R)
• M16: 24,219,596 km (0.039 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 586.8

Radius: 5.2

Gravity: 21.7 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 10.73 AU - 16.89 AU

Year: 21502 Days

Day: 17.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 75,837,256 km

• M1: 65,524 km (0.115 R)
• M2: 268,229 km (0.066 R)
• M3: 436,975 km (0.067 R)
• M4: 786,586 km (0.07 R)
• M5: 1,458,878 km (0.081 R)
• M6: 2,939,000 km (0.102 R)
• M7: 3,122,407 km (0.113 R)
• M8: 3,689,083 km (0.118 R)
• M9: 4,288,522 km (0.113 R)
• M10: 4,524,887 km (0.073 R)
• M11: 5,248,940 km (0.067 R)
• M12: 5,759,069 km (0.047 R)
• M13: 6,388,128 km (0.084 R)
• M14: 10,115,958 km (0.082 R)
• M15: 10,718,837 km (0.094 R)
• M16: 11,602,811 km (0.119 R)
• M17: 16,513,511 km (0.059 R)
• M18: 17,011,073 km (0.072 R)
• M19: 18,921,288 km (0.115 R)
• M20: 24,312,945 km (0.08 R)
• M21: 32,287,708 km (0.119 R)
• M22: 42,457,671 km (0.104 R)
• M23: 48,092,275 km (0.044 R)
• M24: 61,802,770 km (0.078 R)
• M25: 63,201,211 km (0.092 R)
• M26: 64,213,091 km (0.098 R)
• M27: 73,141,989 km (0.112 R)
• M28: 74,931,629 km (0.096 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 492 - 17,939 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit