🌌 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: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.43

Radius: 1.15

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.59 AU - 0.71 AU

Year: 344 Days

Day: 30.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.58 AU - 0.76 AU

Year: 360 Days

Day: 20.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 9.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.5

Radius: 14.7

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.14 AU - 1.44 AU

Year: 961 Days

Day: 10.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,865,954 km

• M1: 182,809 km (0.069 R)
• M2: 734,974 km (0.055 R)
• M3: 1,192,295 km (0.115 R)
• M4: 1,652,907 km (0.059 R)
• M5: 2,351,230 km (0.107 R)
• M6: 2,868,390 km (0.101 R)
• M7: 3,364,157 km (0.062 R)
• M8: 4,026,127 km (0.081 R)
• M9: 4,600,135 km (0.115 R)
• M10: 5,061,644 km (0.108 R)
• M11: 6,374,964 km (0.045 R)
• M12: 8,030,414 km (0.101 R)
• M13: 9,357,945 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.4

Radius: 10

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.65 AU - 1.77 AU

Year: 1467 Days

Day: 11.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 81,865,954 km

• M1: 124,914 km (0.059 R)
• M2: 498,610 km (0.064 R)
• M3: 813,962 km (0.089 R)
• M4: 1,299,557 km (0.076 R)
• M5: 1,685,968 km (0.08 R)
• M6: 2,405,235 km (0.099 R)
• M7: 3,390,337 km (0.091 R)
• M8: 3,772,709 km (0.095 R)
• M9: 4,698,121 km (0.076 R)
• M10: 5,662,579 km (0.088 R)
• M11: 6,026,401 km (0.053 R)
• M12: 6,896,761 km (0.113 R)
• M13: 8,329,011 km (0.084 R)
• M14: 8,885,665 km (0.099 R)
• M15: 10,197,788 km (0.049 R)
• M16: 10,867,687 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.3

Radius: 12.9

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.87 AU - 2.01 AU

Year: 1773 Days

Day: 6.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,865,954 km

• M1: 160,668 km (0.096 R)
• M2: 580,290 km (0.051 R)
• M3: 1,071,121 km (0.073 R)
• M4: 1,538,764 km (0.114 R)
• M5: 2,096,016 km (0.085 R)
• M6: 2,503,969 km (0.106 R)
• M7: 2,950,519 km (0.084 R)
• M8: 5,208,998 km (0.111 R)
• M9: 5,919,139 km (0.064 R)
• M10: 6,375,562 km (0.117 R)
• M11: 7,302,321 km (0.099 R)
• M12: 8,316,894 km (0.108 R)
• M13: 9,628,418 km (0.106 R)
• M14: 10,154,255 km (0.111 R)
• M15: 10,997,837 km (0.116 R)
• M16: 12,370,547 km (0.114 R)
• M17: 15,454,358 km (0.095 R)
• M18: 16,870,451 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.2

Radius: 8.6

Gravity: 11.77 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 2.61 AU - 3.75 AU

Year: 3720 Days

Day: 11.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 81,865,954 km

• M1: 106,962 km (0.092 R)
• M2: 519,853 km (0.117 R)
• M3: 1,323,792 km (0.106 R)
• M4: 1,633,160 km (0.093 R)
• M5: 1,977,385 km (0.074 R)
• M6: 2,710,265 km (0.066 R)
• M7: 2,991,359 km (0.064 R)
• M8: 4,088,659 km (0.097 R)
• M9: 4,412,539 km (0.067 R)
• M10: 4,778,754 km (0.118 R)
• M11: 5,059,998 km (0.098 R)
• M12: 6,147,724 km (0.076 R)
• M13: 6,731,007 km (0.104 R)
• M14: 7,350,641 km (0.085 R)
• M15: 7,866,155 km (0.095 R)
• M16: 9,008,036 km (0.107 R)
• M17: 9,319,798 km (0.042 R)
• M18: 11,986,978 km (0.105 R)
• M19: 13,646,916 km (0.053 R)
• M20: 15,510,158 km (0.109 R)
• M21: 16,531,761 km (0.099 R)
• M22: 16,881,970 km (0.117 R)
• M23: 17,416,782 km (0.096 R)
• M24: 22,179,530 km (0.08 R)
• M25: 22,677,242 km (0.115 R)
• M26: 23,401,445 km (0.11 R)
• M27: 23,843,208 km (0.043 R)
• M28: 24,895,778 km (0.063 R)
• M29: 26,057,556 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.3

Radius: 8.6

Gravity: 6.62 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 4.31 AU - 5.51 AU

Year: 7137 Days

Day: 14.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 81,865,954 km

• M1: 106,962 km (0.078 R)
• M2: 480,209 km (0.079 R)
• M3: 1,711,848 km (0.08 R)
• M4: 2,257,581 km (0.112 R)
• M5: 3,052,694 km (0.087 R)
• M6: 4,526,532 km (0.066 R)
• M7: 5,099,941 km (0.085 R)
• M8: 6,033,881 km (0.083 R)
• M9: 6,592,180 km (0.074 R)
• M10: 7,849,999 km (0.103 R)
• M11: 10,975,846 km (0.074 R)
• M12: 11,313,489 km (0.083 R)
• M13: 13,930,404 km (0.117 R)
• M14: 16,420,311 km (0.105 R)
• M15: 19,192,509 km (0.082 R)
• M16: 20,326,012 km (0.095 R)
• M17: 28,350,592 km (0.105 R)
• M18: 28,622,112 km (0.112 R)
• M19: 32,907,044 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 468.9

Radius: 3.6

Gravity: 36.18 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 5.03 AU - 7.29 AU

Year: 10030 Days

Day: 16.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 81,865,954 km

• M1: 44,879 km (0.101 R)
• M2: 170,990 km (0.097 R)
• M3: 283,189 km (0.109 R)
• M4: 507,436 km (0.084 R)
• M5: 840,590 km (0.026 R)
• M6: 1,550,432 km (0.115 R)
• M7: 1,736,083 km (0.072 R)
• M8: 2,310,390 km (0.032 R)
• M9: 5,653,603 km (0.079 R)
• M10: 6,628,981 km (0.076 R)
• M11: 8,951,338 km (0.095 R)
• M12: 9,642,032 km (0.04 R)
• M13: 16,560,933 km (0.083 R)
• M14: 17,740,213 km (0.082 R)
• M15: 18,025,646 km (0.098 R)
• M16: 19,048,746 km (0.11 R)
• M17: 22,515,228 km (0.103 R)
• M18: 26,844,889 km (0.12 R)
• M19: 38,277,607 km (0.093 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 299.6

Radius: 3.4

Gravity: 25.92 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 6.06 AU - 9.82 AU

Year: 14677 Days

Day: 24.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,865,954 km

• M1: 42,336 km (0.094 R)
• M2: 168,298 km (0.119 R)
• M3: 374,593 km (0.099 R)
• M4: 1,117,646 km (0.059 R)
• M5: 2,848,643 km (0.067 R)
• M6: 3,827,312 km (0.09 R)
• M7: 4,823,783 km (0.099 R)
• M8: 5,201,967 km (0.096 R)
• M9: 5,771,037 km (0.115 R)
• M10: 5,981,521 km (0.084 R)
• M11: 7,031,848 km (0.115 R)
• M12: 8,375,835 km (0.111 R)
• M13: 10,594,222 km (0.06 R)
• M14: 17,420,074 km (0.074 R)
• M15: 17,785,541 km (0.103 R)
• M16: 18,231,044 km (0.12 R)
• M17: 21,727,146 km (0.111 R)
• M18: 22,236,078 km (0.078 R)
• M19: 30,851,419 km (0.081 R)
• M20: 32,036,234 km (0.035 R)
• M21: 37,562,380 km (0.064 R)
• M22: 39,036,816 km (0.04 R)
• M23: 41,449,381 km (0.028 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 930.8

Radius: 3.5

Gravity: 75.98 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 8.65 AU - 10.31 AU

Year: 19148 Days

Day: 19.7 Hours

Environment

Temp: -239 °C

Axial Tilt: 8.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 81,865,954 km

• M1: 43,683 km (0.109 R)
• M2: 348,264 km (0.109 R)
• M3: 497,263 km (0.053 R)
• M4: 708,047 km (0.086 R)
• M5: 834,158 km (0.082 R)
• M6: 2,144,037 km (0.1 R)
• M7: 2,387,881 km (0.062 R)
• M8: 3,673,376 km (0.115 R)
• M9: 3,989,775 km (0.072 R)
• M10: 4,289,719 km (0.063 R)
• M11: 4,604,622 km (0.049 R)
• M12: 6,019,370 km (0.114 R)
• M13: 6,458,589 km (0.089 R)
• M14: 8,323,476 km (0.12 R)
• M15: 8,868,162 km (0.111 R)
• M16: 9,847,729 km (0.108 R)
• M17: 11,681,649 km (0.119 R)
• M18: 14,107,079 km (0.116 R)
• M19: 14,412,857 km (0.104 R)
• M20: 14,958,441 km (0.057 R)
• M21: 18,162,677 km (0.097 R)
• M22: 20,212,019 km (0.099 R)
• M23: 20,993,967 km (0.054 R)
• M24: 21,795,811 km (0.1 R)
• M25: 22,204,363 km (0.116 R)
• M26: 23,353,873 km (0.096 R)
• M27: 24,432,923 km (0.073 R)
• M28: 25,544,734 km (0.034 R)
• M29: 35,397,399 km (0.037 R)
• M30: 37,252,862 km (0.085 R)
• M31: 37,543,830 km (0.108 R)
• M32: 38,574,559 km (0.091 R)
• M33: 38,723,409 km (0.117 R)
• M34: 46,828,472 km (0.117 R)
• M35: 50,648,304 km (0.083 R)
• M36: 52,451,108 km (0.073 R)
• M37: 55,046,332 km (0.089 R)
• M38: 55,613,308 km (0.083 R)
• M39: 60,691,707 km (0.069 R)
• M40: 71,533,663 km (0.025 R)
• M41: 73,115,511 km (0.114 R)
• M42: 76,583,638 km (0.119 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 330 - 15,857 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit