🌌 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: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.46 AU - 0.68 AU

Year: 282 Days

Day: 13.8 Hours

Environment

Temp: -131 °C

Axial Tilt: 32.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 755.3

Radius: 11.6

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.83 AU - 1.35 AU

Year: 747 Days

Day: 10.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,513,302 km

• M1: 144,212 km (0.086 R)
• M2: 543,788 km (0.07 R)
• M3: 946,955 km (0.07 R)
• M4: 2,075,521 km (0.057 R)
• M5: 2,895,616 km (0.089 R)
• M6: 3,261,084 km (0.1 R)
• M7: 3,949,982 km (0.095 R)
• M8: 4,649,053 km (0.104 R)
• M9: 5,503,855 km (0.076 R)
• M10: 6,651,570 km (0.112 R)
• M11: 7,023,171 km (0.066 R)
• M12: 7,478,098 km (0.034 R)
• M13: 8,371,796 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 697.6

Radius: 14.1

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.62 AU - 2.1 AU

Year: 1664 Days

Day: 9.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,513,302 km

• M1: 175,329 km (0.088 R)
• M2: 722,109 km (0.067 R)
• M3: 1,228,199 km (0.095 R)
• M4: 1,700,778 km (0.079 R)
• M5: 2,345,695 km (0.107 R)
• M6: 2,789,103 km (0.119 R)
• M7: 3,351,591 km (0.07 R)
• M8: 5,056,258 km (0.095 R)
• M9: 6,453,203 km (0.114 R)
• M10: 6,937,302 km (0.086 R)
• M11: 9,537,163 km (0.042 R)
• M12: 11,882,559 km (0.105 R)
• M13: 12,769,824 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.2

Radius: 14.3

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 3.58 AU - 4.66 AU

Year: 5486 Days

Day: 5.1 Hours

Environment

Temp: -204 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 49,513,302 km

• M1: 177,872 km (0.045 R)
• M2: 708,944 km (0.071 R)
• M3: 1,510,789 km (0.05 R)
• M4: 3,620,268 km (0.113 R)
• M5: 4,403,563 km (0.119 R)
• M6: 5,511,934 km (0.056 R)
• M7: 6,016,078 km (0.084 R)
• M8: 7,313,690 km (0.071 R)
• M9: 8,458,563 km (0.073 R)
• M10: 10,332,875 km (0.07 R)
• M11: 11,190,669 km (0.054 R)
• M12: 12,095,287 km (0.07 R)
• M13: 13,443,313 km (0.102 R)
• M14: 14,361,246 km (0.08 R)
• M15: 16,152,680 km (0.1 R)
• M16: 17,725,702 km (0.098 R)
• M17: 20,972,425 km (0.112 R)
• M18: 22,137,643 km (0.093 R)
• M19: 23,563,161 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452.6

Radius: 9.5

Gravity: 5.01 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 4.62 AU - 4.96 AU

Year: 6877 Days

Day: 5.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,513,302 km

• M1: 119,529 km (0.041 R)
• M2: 668,254 km (0.101 R)
• M3: 1,449,005 km (0.112 R)
• M4: 1,759,720 km (0.083 R)
• M5: 2,223,623 km (0.074 R)
• M6: 2,785,812 km (0.119 R)
• M7: 3,591,546 km (0.026 R)
• M8: 5,539,759 km (0.108 R)
• M9: 6,025,802 km (0.108 R)
• M10: 7,620,067 km (0.116 R)
• M11: 7,917,168 km (0.083 R)
• M12: 8,260,645 km (0.066 R)
• M13: 11,092,233 km (0.108 R)
• M14: 12,315,944 km (0.034 R)
• M15: 18,316,464 km (0.102 R)
• M16: 21,386,212 km (0.082 R)
• M17: 22,128,966 km (0.09 R)
• M18: 25,190,636 km (0.12 R)
• M19: 30,528,288 km (0.047 R)
• M20: 31,090,776 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979.4

Radius: 12.6

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 4.12 AU - 5.62 AU

Year: 7050 Days

Day: 10.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 49,513,302 km

• M1: 156,928 km (0.119 R)
• M2: 568,472 km (0.116 R)
• M3: 1,239,718 km (0.076 R)
• M4: 1,758,972 km (0.1 R)
• M5: 2,246,212 km (0.117 R)
• M6: 3,568,807 km (0.103 R)
• M7: 4,040,339 km (0.1 R)
• M8: 4,840,538 km (0.102 R)
• M9: 5,483,959 km (0.11 R)
• M10: 6,288,496 km (0.05 R)
• M11: 8,688,944 km (0.062 R)
• M12: 9,088,819 km (0.054 R)
• M13: 13,322,289 km (0.084 R)
• M14: 13,795,168 km (0.071 R)
• M15: 14,587,737 km (0.079 R)
• M16: 15,090,386 km (0.075 R)
• M17: 17,217,518 km (0.053 R)
• M18: 24,968,483 km (0.071 R)
• M19: 29,200,008 km (0.105 R)
• M20: 32,698,055 km (0.083 R)
• M21: 34,326,727 km (0.042 R)
• M22: 35,217,134 km (0.11 R)
• M23: 36,008,806 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 602

Radius: 7.3

Gravity: 11.3 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 5.1 AU - 8.16 AU

Year: 11199 Days

Day: 23.6 Hours

Environment

Temp: -222 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 49,513,302 km

• M1: 93,499 km (0.091 R)
• M2: 337,942 km (0.115 R)
• M3: 684,261 km (0.093 R)
• M4: 959,371 km (0.08 R)
• M5: 2,474,349 km (0.036 R)
• M6: 2,911,175 km (0.11 R)
• M7: 3,349,646 km (0.1 R)
• M8: 4,158,821 km (0.107 R)
• M9: 4,534,611 km (0.038 R)
• M10: 4,901,425 km (0.097 R)
• M11: 5,354,108 km (0.077 R)
• M12: 5,694,293 km (0.079 R)
• M13: 6,158,047 km (0.094 R)
• M14: 6,569,890 km (0.069 R)
• M15: 7,574,290 km (0.095 R)
• M16: 9,884,081 km (0.099 R)
• M17: 10,241,171 km (0.079 R)
• M18: 10,553,980 km (0.11 R)
• M19: 10,873,222 km (0.085 R)
• M20: 11,475,054 km (0.076 R)
• M21: 12,507,728 km (0.06 R)
• M22: 13,663,372 km (0.09 R)
• M23: 14,429,163 km (0.053 R)
• M24: 15,426,084 km (0.116 R)
• M25: 18,537,570 km (0.104 R)
• M26: 18,924,579 km (0.109 R)
• M27: 21,108,110 km (0.056 R)
• M28: 21,615,247 km (0.103 R)
• M29: 24,458,055 km (0.111 R)
• M30: 28,760,490 km (0.112 R)
• M31: 37,211,573 km (0.103 R)
• M32: 38,450,094 km (0.084 R)
• M33: 42,330,812 km (0.103 R)
• M34: 43,136,995 km (0.11 R)
• M35: 45,898,572 km (0.059 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 551 - 17,103 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit