🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.8

Radius: 10.7

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.69 AU - 1.11 AU

Year: 560 Days

Day: 5.6 Hours

Environment

Temp: -152 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,967,524 km

• M1: 133,142 km (0.073 R)
• M2: 507,137 km (0.051 R)
• M3: 860,487 km (0.111 R)
• M4: 1,546,692 km (0.109 R)
• M5: 2,023,910 km (0.105 R)
• M6: 2,721,185 km (0.105 R)
• M7: 3,976,910 km (0.068 R)
• M8: 5,567,434 km (0.115 R)
• M9: 6,206,068 km (0.109 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556.3

Radius: 12

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.23 AU - 1.51 AU

Year: 1052 Days

Day: 14.2 Hours

Environment

Temp: -178 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 80,967,524 km

• M1: 149,299 km (0.027 R)
• M2: 646,412 km (0.096 R)
• M3: 1,055,712 km (0.083 R)
• M4: 1,459,028 km (0.04 R)
• M5: 2,388,330 km (0.096 R)
• M6: 3,010,059 km (0.118 R)
• M7: 3,473,064 km (0.092 R)
• M8: 3,859,176 km (0.082 R)
• M9: 4,509,628 km (0.113 R)
• M10: 5,044,440 km (0.087 R)
• M11: 5,843,592 km (0.096 R)
• M12: 7,022,872 km (0.075 R)
• M13: 7,570,849 km (0.053 R)
• M14: 8,147,399 km (0.096 R)
• M15: 9,303,641 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.4

Radius: 9

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.16 AU - 1.7 AU

Year: 1122 Days

Day: 9.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 80,967,524 km

• M1: 111,899 km (0.082 R)
• M2: 430,692 km (0.101 R)
• M3: 715,527 km (0.103 R)
• M4: 1,031,178 km (0.113 R)
• M5: 1,718,880 km (0.109 R)
• M6: 2,100,205 km (0.075 R)
• M7: 2,559,769 km (0.06 R)
• M8: 2,922,993 km (0.109 R)
• M9: 3,360,567 km (0.109 R)
• M10: 3,709,878 km (0.049 R)
• M11: 4,287,475 km (0.078 R)
• M12: 5,679,184 km (0.083 R)
• M13: 6,115,411 km (0.116 R)
• M14: 6,404,434 km (0.055 R)
• M15: 7,373,230 km (0.103 R)
• M16: 8,260,944 km (0.071 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 306.3

Radius: 14.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.98 AU - 2.04 AU

Year: 1869 Days

Day: 14.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,967,524 km

• M1: 190,737 km (0.1 R)
• M2: 1,274,873 km (0.087 R)
• M3: 1,863,391 km (0.04 R)
• M4: 2,439,941 km (0.109 R)
• M5: 3,485,630 km (0.082 R)
• M6: 5,202,715 km (0.047 R)
• M7: 6,271,442 km (0.099 R)
• M8: 7,329,099 km (0.082 R)
• M9: 7,847,904 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.9

Radius: 8.9

Gravity: 6.08 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.17 AU - 2.49 AU

Year: 2333 Days

Day: 6.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 80,967,524 km

• M1: 110,852 km (0.112 R)
• M2: 389,403 km (0.102 R)
• M3: 891,005 km (0.091 R)
• M4: 1,325,138 km (0.05 R)
• M5: 2,009,997 km (0.091 R)
• M6: 2,722,532 km (0.077 R)
• M7: 3,524,825 km (0.097 R)
• M8: 4,317,095 km (0.105 R)
• M9: 5,497,423 km (0.028 R)
• M10: 6,025,204 km (0.103 R)
• M11: 6,560,315 km (0.09 R)
• M12: 8,234,166 km (0.097 R)
• M13: 9,689,304 km (0.091 R)
• M14: 10,210,354 km (0.084 R)
• M15: 11,808,209 km (0.078 R)
• M16: 12,524,184 km (0.103 R)
• M17: 13,100,884 km (0.109 R)
• M18: 13,566,283 km (0.08 R)
• M19: 13,998,770 km (0.113 R)
• M20: 14,440,682 km (0.095 R)
• M21: 14,982,975 km (0.091 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 226.4

Radius: 5.5

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 5.78 AU - 9.34 AU

Year: 13636 Days

Day: 15 Hours

Environment

Temp: -217 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 80,967,524 km

• M1: 68,516 km (0.097 R)
• M2: 244,593 km (0.114 R)
• M3: 688,898 km (0.114 R)
• M4: 860,337 km (0.112 R)
• M5: 1,292,226 km (0.049 R)
• M6: 1,681,630 km (0.05 R)
• M7: 2,046,798 km (0.081 R)
• M8: 2,300,815 km (0.083 R)
• M9: 2,556,777 km (0.119 R)
• M10: 2,872,429 km (0.114 R)
• M11: 4,346,566 km (0.025 R)
• M12: 5,153,946 km (0.119 R)
• M13: 6,125,434 km (0.069 R)
• M14: 6,546,104 km (0.049 R)
• M15: 9,858,799 km (0.066 R)
• M16: 10,289,940 km (0.09 R)
• M17: 12,692,332 km (0.117 R)
• M18: 15,508,213 km (0.071 R)
• M19: 16,222,692 km (0.114 R)
• M20: 17,717,175 km (0.094 R)
• M21: 18,354,163 km (0.047 R)
• M22: 22,011,681 km (0.105 R)
• M23: 24,528,366 km (0.065 R)
• M24: 25,586,472 km (0.072 R)
• M25: 26,582,943 km (0.111 R)
• M26: 29,235,762 km (0.099 R)
• M27: 32,477,399 km (0.043 R)
• M28: 37,893,141 km (0.117 R)
• M29: 38,126,214 km (0.07 R)
• M30: 38,595,054 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296.7

Radius: 4.1

Gravity: 17.65 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 7.59 AU - 9.21 AU

Year: 15971 Days

Day: 19.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 80,967,524 km

• M1: 62,831 km (0.094 R)
• M2: 195,674 km (0.039 R)
• M3: 385,215 km (0.082 R)
• M4: 637,736 km (0.105 R)
• M5: 1,036,115 km (0.096 R)
• M6: 3,718,405 km (0.103 R)
• M7: 7,213,909 km (0.109 R)
• M8: 8,108,354 km (0.054 R)
• M9: 8,241,945 km (0.032 R)
• M10: 9,266,541 km (0.116 R)
• M11: 10,012,137 km (0.044 R)
• M12: 11,734,607 km (0.048 R)
• M13: 18,527,098 km (0.12 R)
• M14: 36,257,587 km (0.098 R)
• M15: 42,491,929 km (0.072 R)
• M16: 43,437,088 km (0.109 R)

Asteroid Belt

Center: 8.78 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Ice Giant

Semi-Major Axis: 9.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 998.2

Radius: 4.5

Gravity: 49.29 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 7.78 AU - 10.54 AU

Year: 18187 Days

Day: 19.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 80,967,524 km

• M1: 56,099 km (0.114 R)
• M2: 426,055 km (0.117 R)
• M3: 794,664 km (0.101 R)
• M4: 941,270 km (0.066 R)
• M5: 1,188,555 km (0.118 R)
• M6: 1,335,460 km (0.039 R)
• M7: 1,813,126 km (0.094 R)
• M8: 2,633,371 km (0.076 R)
• M9: 4,637,384 km (0.075 R)
• M10: 4,967,098 km (0.12 R)
• M11: 6,716,047 km (0.094 R)
• M12: 9,172,893 km (0.096 R)
• M13: 20,191,524 km (0.117 R)
• M14: 22,378,944 km (0.109 R)
• M15: 27,927,678 km (0.072 R)
• M16: 30,256,020 km (0.12 R)
• M17: 32,183,140 km (0.064 R)
• M18: 45,654,428 km (0.103 R)
• M19: 54,260,344 km (0.088 R)
• M20: 57,481,486 km (0.095 R)
• M21: 65,558,574 km (0.082 R)
• M22: 69,646,785 km (0.063 R)
• M23: 77,380,845 km (0.086 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 450 - 18,572 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit