🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.4

Radius: 8.9

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.61 AU - 0.79 AU

Year: 384 Days

Day: 14.2 Hours

Environment

Temp: -128 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,131,438 km

• M1: 111,600 km (0.078 R)
• M2: 406,457 km (0.074 R)
• M3: 874,699 km (0.1 R)
• M4: 1,174,642 km (0.101 R)
• M5: 1,461,272 km (0.093 R)
• M6: 1,748,650 km (0.059 R)
• M7: 2,290,044 km (0.057 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.7

Radius: 12.5

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.95 AU - 1.35 AU

Year: 809 Days

Day: 5 Hours

Environment

Temp: -174 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,131,438 km

• M1: 156,180 km (0.116 R)
• M2: 558,598 km (0.07 R)
• M3: 994,527 km (0.061 R)
• M4: 1,587,084 km (0.094 R)
• M5: 2,064,151 km (0.092 R)
• M6: 2,534,338 km (0.115 R)
• M7: 2,992,705 km (0.117 R)
• M8: 3,730,522 km (0.109 R)
• M9: 4,143,263 km (0.074 R)
• M10: 5,046,385 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.6

Radius: 13.6

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 2.9 AU - 3.48 AU

Year: 3738 Days

Day: 5.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,131,438 km

• M1: 169,195 km (0.099 R)
• M2: 594,203 km (0.05 R)
• M3: 1,317,359 km (0.113 R)
• M4: 2,094,221 km (0.104 R)
• M5: 2,617,963 km (0.071 R)
• M6: 3,263,777 km (0.115 R)
• M7: 3,758,347 km (0.096 R)
• M8: 4,539,697 km (0.114 R)
• M9: 5,577,009 km (0.096 R)
• M10: 6,680,742 km (0.109 R)
• M11: 8,022,036 km (0.074 R)
• M12: 9,211,638 km (0.076 R)
• M13: 10,322,403 km (0.105 R)
• M14: 11,396,515 km (0.089 R)
• M15: 11,939,705 km (0.096 R)
• M16: 12,676,026 km (0.077 R)
• M17: 14,239,623 km (0.099 R)
• M18: 14,919,545 km (0.074 R)
• M19: 15,825,510 km (0.09 R)
• M20: 17,581,340 km (0.109 R)
• M21: 18,307,488 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.9

Radius: 14.5

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.79 AU - 4.17 AU

Year: 4259 Days

Day: 7.5 Hours

Environment

Temp: -211 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,131,438 km

• M1: 180,415 km (0.037 R)
• M2: 953,986 km (0.027 R)
• M3: 1,438,234 km (0.104 R)
• M4: 1,969,755 km (0.066 R)
• M5: 2,799,874 km (0.1 R)
• M6: 3,685,493 km (0.115 R)
• M7: 4,160,915 km (0.068 R)
• M8: 4,677,477 km (0.118 R)
• M9: 6,739,384 km (0.08 R)
• M10: 7,421,999 km (0.114 R)
• M11: 9,078,945 km (0.105 R)
• M12: 10,883,843 km (0.082 R)
• M13: 11,460,244 km (0.101 R)
• M14: 12,966,545 km (0.058 R)
• M15: 16,484,937 km (0.108 R)
• M16: 17,009,577 km (0.099 R)
• M17: 17,605,575 km (0.113 R)
• M18: 18,650,815 km (0.078 R)
• M19: 19,867,644 km (0.089 R)
• M20: 20,395,575 km (0.11 R)
• M21: 24,962,349 km (0.119 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 958.6

Radius: 3.8

Gravity: 66.39 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 6.84 AU - 7.46 AU

Year: 12542 Days

Day: 15.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 41,131,438 km

• M1: 47,423 km (0.077 R)
• M2: 274,811 km (0.109 R)
• M3: 474,674 km (0.117 R)
• M4: 1,371,513 km (0.119 R)
• M5: 1,921,435 km (0.112 R)
• M6: 2,088,985 km (0.106 R)
• M7: 4,094,943 km (0.079 R)
• M8: 5,282,750 km (0.035 R)
• M9: 5,427,411 km (0.073 R)
• M10: 6,557,473 km (0.068 R)
• M11: 7,604,209 km (0.043 R)
• M12: 9,218,670 km (0.102 R)
• M13: 9,695,588 km (0.116 R)
• M14: 9,912,804 km (0.072 R)
• M15: 10,930,668 km (0.069 R)
• M16: 11,769,164 km (0.119 R)
• M17: 14,682,133 km (0.047 R)
• M18: 15,331,837 km (0.103 R)
• M19: 18,453,047 km (0.098 R)
• M20: 19,124,293 km (0.099 R)
• M21: 19,811,695 km (0.081 R)
• M22: 21,418,376 km (0.101 R)
• M23: 26,755,579 km (0.112 R)
• M24: 28,603,113 km (0.081 R)
• M25: 29,388,053 km (0.096 R)
• M26: 29,614,843 km (0.092 R)
• M27: 30,650,210 km (0.101 R)
• M28: 40,512,899 km (0.099 R)
• M29: 48,248,754 km (0.1 R)
• M30: 60,137,297 km (0.111 R)
• M31: 60,503,064 km (0.069 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 731.2

Radius: 7.8

Gravity: 12.02 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 7.85 AU - 9.85 AU

Year: 17271 Days

Day: 21.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 41,131,438 km

• M1: 97,239 km (0.049 R)
• M2: 430,842 km (0.117 R)
• M3: 768,035 km (0.118 R)
• M4: 1,593,666 km (0.079 R)
• M5: 2,075,371 km (0.118 R)
• M6: 3,274,249 km (0.097 R)
• M7: 4,371,399 km (0.112 R)
• M8: 4,706,050 km (0.085 R)
• M9: 5,093,957 km (0.112 R)
• M10: 13,001,701 km (0.11 R)
• M11: 18,384,830 km (0.101 R)
• M12: 20,067,806 km (0.108 R)
• M13: 22,533,927 km (0.095 R)
• M14: 25,301,338 km (0.07 R)
• M15: 31,009,993 km (0.052 R)
• M16: 33,902,318 km (0.062 R)
• M17: 36,969,823 km (0.049 R)
• M18: 46,629,357 km (0.09 R)
• M19: 48,414,658 km (0.083 R)
• M20: 49,075,133 km (0.088 R)
• M21: 50,752,274 km (0.091 R)
• M22: 60,856,115 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 98.2

Radius: 3.4

Gravity: 8.49 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 8.04 AU - 12.12 AU

Year: 20994 Days

Day: 18.5 Hours

Environment

Temp: -240 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 41,131,438 km

• M1: 42,486 km (0.098 R)
• M2: 186,549 km (0.083 R)
• M3: 422,764 km (0.063 R)
• M4: 915,539 km (0.066 R)
• M5: 2,751,703 km (0.11 R)
• M6: 3,130,186 km (0.067 R)
• M7: 3,638,819 km (0.089 R)
• M8: 4,041,686 km (0.1 R)
• M9: 4,227,187 km (0.118 R)
• M10: 4,906,062 km (0.109 R)
• M11: 5,056,109 km (0.081 R)
• M12: 6,263,962 km (0.098 R)
• M13: 6,440,787 km (0.086 R)
• M14: 7,813,048 km (0.107 R)
• M15: 8,524,087 km (0.113 R)
• M16: 12,567,119 km (0.101 R)
• M17: 13,191,391 km (0.092 R)
• M18: 14,873,170 km (0.038 R)
• M19: 23,963,634 km (0.099 R)
• M20: 27,948,024 km (0.113 R)
• M21: 33,844,573 km (0.099 R)
• M22: 36,281,822 km (0.116 R)
• M23: 39,429,810 km (0.086 R)
• M24: 41,008,367 km (0.112 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 389 - 14,015 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit