🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.96 AU - 1.46 AU

Year: 510 Days

Day: 16 Hours

Environment

Temp: -23 °C

Axial Tilt: 46.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 105,138,388 km

• M1: 355,445 km (0.104 R)

Planet 2 - Terrestrial

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 2.78 AU - 3.34 AU

Year: 2050 Days

Day: 21.7 Hours

Environment

Temp: -122 °C

Axial Tilt: 17.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 105,138,388 km

• M1: 948,451 km (0.102 R)
• M2: 1,118,394 km (0.049 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 3.43 AU - 3.67 AU

Year: 2561 Days

Day: 40.1 Hours

Environment

Temp: -125 °C

Axial Tilt: 23.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 105,138,388 km

• M1: 38,895 km (0.083 R)

Asteroid Belt

Center: 4.01 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.3

Radius: 14.8

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 3.76 AU - 5.16 AU

Year: 3606 Days

Day: 5.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 105,138,388 km

• M1: 184,155 km (0.078 R)
• M2: 672,293 km (0.069 R)
• M3: 1,411,755 km (0.072 R)
• M4: 2,168,122 km (0.055 R)
• M5: 2,904,143 km (0.107 R)
• M6: 3,468,875 km (0.12 R)
• M7: 4,020,742 km (0.116 R)
• M8: 5,555,467 km (0.096 R)
• M9: 7,690,827 km (0.069 R)
• M10: 8,840,187 km (0.099 R)
• M11: 9,318,751 km (0.115 R)
• M12: 9,814,668 km (0.062 R)
• M13: 12,268,821 km (0.04 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.3

Radius: 12.8

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 4.12 AU - 5.38 AU

Year: 3964 Days

Day: 6.5 Hours

Environment

Temp: -137 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 105,138,388 km

• M1: 159,471 km (0.114 R)
• M2: 607,517 km (0.104 R)
• M3: 1,213,688 km (0.104 R)
• M4: 1,898,846 km (0.115 R)
• M5: 3,240,739 km (0.063 R)
• M6: 4,633,794 km (0.104 R)
• M7: 5,370,713 km (0.086 R)
• M8: 6,158,496 km (0.108 R)
• M9: 8,119,424 km (0.059 R)
• M10: 9,157,933 km (0.107 R)
• M11: 10,615,465 km (0.043 R)
• M12: 12,058,935 km (0.109 R)
• M13: 12,722,102 km (0.113 R)
• M14: 14,672,110 km (0.108 R)
• M15: 15,332,435 km (0.075 R)
• M16: 17,018,703 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.8

Radius: 10.4

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 4.88 AU - 5.48 AU

Year: 4514 Days

Day: 13.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 105,138,388 km

• M1: 129,402 km (0.077 R)
• M2: 462,856 km (0.054 R)
• M3: 1,054,515 km (0.118 R)
• M4: 2,010,595 km (0.088 R)
• M5: 2,482,577 km (0.095 R)
• M6: 2,866,594 km (0.04 R)
• M7: 3,290,405 km (0.076 R)
• M8: 3,671,730 km (0.048 R)
• M9: 4,694,531 km (0.075 R)
• M10: 5,286,041 km (0.082 R)
• M11: 6,250,498 km (0.06 R)
• M12: 6,617,761 km (0.112 R)
• M13: 6,999,236 km (0.084 R)
• M14: 7,667,938 km (0.082 R)
• M15: 8,863,823 km (0.039 R)
• M16: 9,288,981 km (0.107 R)
• M17: 11,851,891 km (0.088 R)
• M18: 12,178,763 km (0.044 R)
• M19: 12,899,675 km (0.067 R)
• M20: 13,853,361 km (0.087 R)
• M21: 14,216,286 km (0.079 R)
• M22: 15,288,454 km (0.12 R)
• M23: 17,412,743 km (0.094 R)
• M24: 19,402,844 km (0.115 R)
• M25: 20,856,038 km (0.109 R)
• M26: 21,470,885 km (0.108 R)
• M27: 26,594,163 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.3

Radius: 8.7

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 7.35 AU - 7.41 AU

Year: 7676 Days

Day: 11 Hours

Environment

Temp: -179 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 105,138,388 km

• M1: 204,949 km (0.091 R)
• M2: 1,316,611 km (0.038 R)
• M3: 1,855,313 km (0.118 R)
• M4: 2,226,914 km (0.113 R)
• M5: 3,813,549 km (0.028 R)
• M6: 4,336,543 km (0.053 R)
• M7: 9,090,315 km (0.071 R)
• M8: 9,740,617 km (0.12 R)
• M9: 10,023,656 km (0.039 R)
• M10: 11,287,907 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296.1

Radius: 7.9

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 14.91 AU - 17.39 AU

Year: 24850 Days

Day: 19.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 105,138,388 km

• M1: 102,774 km (0.111 R)
• M2: 758,162 km (0.089 R)
• M3: 1,039,256 km (0.082 R)
• M4: 1,855,313 km (0.08 R)
• M5: 3,571,500 km (0.044 R)
• M6: 4,128,303 km (0.115 R)
• M7: 5,639,092 km (0.054 R)
• M8: 6,067,989 km (0.101 R)
• M9: 11,883,456 km (0.07 R)
• M10: 12,264,931 km (0.036 R)
• M11: 14,583,100 km (0.088 R)
• M12: 14,873,768 km (0.083 R)
• M13: 15,617,419 km (0.074 R)
• M14: 16,778,897 km (0.108 R)
• M15: 19,272,993 km (0.107 R)
• M16: 22,004,052 km (0.084 R)
• M17: 23,362,699 km (0.047 R)
• M18: 27,773,293 km (0.104 R)
• M19: 32,832,843 km (0.067 R)
• M20: 33,964,401 km (0.05 R)
• M21: 40,299,273 km (0.102 R)
• M22: 40,585,005 km (0.097 R)
• M23: 45,807,915 km (0.09 R)
• M24: 49,965,838 km (0.11 R)
• M25: 52,136,055 km (0.111 R)
• M26: 59,206,948 km (0.08 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 861.2

Radius: 6.8

Gravity: 18.62 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 17.46 AU - 18.32 AU

Year: 28972 Days

Day: 21.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 105,138,388 km

• M1: 106,214 km (0.041 R)
• M2: 828,174 km (0.094 R)
• M3: 1,555,070 km (0.104 R)
• M4: 2,836,824 km (0.112 R)
• M5: 3,065,260 km (0.057 R)
• M6: 3,859,924 km (0.065 R)
• M7: 4,864,474 km (0.116 R)
• M8: 6,757,785 km (0.036 R)
• M9: 7,115,174 km (0.104 R)
• M10: 8,495,513 km (0.068 R)
• M11: 9,657,590 km (0.03 R)
• M12: 13,295,212 km (0.117 R)
• M13: 15,548,305 km (0.11 R)
• M14: 20,581,825 km (0.113 R)
• M15: 22,102,188 km (0.114 R)
• M16: 22,662,881 km (0.11 R)
• M17: 24,283,325 km (0.077 R)
• M18: 24,521,036 km (0.117 R)
• M19: 25,364,917 km (0.113 R)
• M20: 26,478,225 km (0.1 R)
• M21: 29,336,292 km (0.047 R)
• M22: 32,971,371 km (0.088 R)
• M23: 34,745,901 km (0.061 R)
• M24: 37,684,452 km (0.068 R)
• M25: 39,623,390 km (0.113 R)
• M26: 40,118,259 km (0.095 R)
• M27: 40,617,318 km (0.044 R)
• M28: 49,365,053 km (0.076 R)
• M29: 49,938,013 km (0.103 R)
• M30: 50,322,480 km (0.039 R)
• M31: 62,796,249 km (0.116 R)
• M32: 65,057,272 km (0.048 R)
• M33: 72,656,544 km (0.049 R)
• M34: 87,062,370 km (0.063 R)
• M35: 88,178,670 km (0.065 R)
• M36: 88,740,410 km (0.105 R)
• M37: 98,356,262 km (0.06 R)
• M38: 101,401,626 km (0.117 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: 235 - 13,752 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit