🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.7

Radius: 11.6

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.5 AU - 0.7 AU

Year: 310 Days

Day: 11.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 66,004,351 km

• M1: 144,362 km (0.042 R)
• M2: 515,514 km (0.096 R)
• M3: 940,522 km (0.096 R)
• M4: 1,354,310 km (0.113 R)
• M5: 1,869,824 km (0.063 R)
• M6: 2,558,572 km (0.037 R)
• M7: 3,377,322 km (0.07 R)
• M8: 4,010,719 km (0.106 R)
• M9: 4,401,618 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.9

Radius: 9.8

Gravity: 10.24 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.8 AU - 1.12 AU

Year: 627 Days

Day: 13.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,004,351 km

• M1: 121,922 km (0.118 R)
• M2: 455,526 km (0.038 R)
• M3: 909,405 km (0.107 R)
• M4: 1,225,207 km (0.091 R)
• M5: 1,876,855 km (0.11 R)
• M6: 2,317,720 km (0.093 R)
• M7: 3,058,229 km (0.063 R)
• M8: 3,504,629 km (0.072 R)
• M9: 4,039,292 km (0.11 R)
• M10: 5,512,233 km (0.117 R)
• M11: 5,818,011 km (0.089 R)
• M12: 6,135,158 km (0.094 R)
• M13: 6,632,571 km (0.114 R)
• M14: 7,246,670 km (0.052 R)
• M15: 8,437,170 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.7

Radius: 8

Gravity: 14.12 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.95 AU - 1.21 AU

Year: 748 Days

Day: 8.2 Hours

Environment

Temp: -176 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 66,004,351 km

• M1: 99,483 km (0.075 R)
• M2: 382,671 km (0.03 R)
• M3: 833,859 km (0.115 R)
• M4: 1,121,086 km (0.116 R)
• M5: 1,819,110 km (0.069 R)
• M6: 2,084,796 km (0.115 R)
• M7: 2,566,651 km (0.118 R)
• M8: 2,877,665 km (0.104 R)
• M9: 3,707,634 km (0.064 R)
• M10: 4,122,469 km (0.102 R)
• M11: 4,653,691 km (0.101 R)
• M12: 4,918,180 km (0.098 R)
• M13: 5,324,039 km (0.093 R)
• M14: 6,161,188 km (0.031 R)
• M15: 6,545,655 km (0.117 R)
• M16: 7,129,386 km (0.099 R)
• M17: 7,386,544 km (0.041 R)
• M18: 8,348,758 km (0.048 R)
• M19: 9,144,020 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.4

Radius: 10.4

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.27 AU - 1.49 AU

Year: 1081 Days

Day: 12.8 Hours

Environment

Temp: -196 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 66,004,351 km

• M1: 129,402 km (0.087 R)
• M2: 591,360 km (0.096 R)
• M3: 1,406,070 km (0.118 R)
• M4: 2,029,445 km (0.08 R)
• M5: 2,361,552 km (0.109 R)
• M6: 2,816,180 km (0.025 R)
• M7: 3,232,212 km (0.105 R)
• M8: 4,353,896 km (0.064 R)
• M9: 4,750,780 km (0.079 R)
• M10: 5,209,596 km (0.118 R)
• M11: 6,237,483 km (0.083 R)
• M12: 7,516,545 km (0.12 R)
• M13: 7,962,646 km (0.104 R)
• M14: 8,400,070 km (0.072 R)
• M15: 9,464,459 km (0.12 R)

Asteroid Belt

Center: 2.51 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.1

Radius: 13.8

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 3.24 AU - 4.02 AU

Year: 4612 Days

Day: 8.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,004,351 km

• M1: 171,589 km (0.117 R)
• M2: 1,193,641 km (0.102 R)
• M3: 1,633,609 km (0.078 R)
• M4: 2,231,252 km (0.1 R)
• M5: 3,996,657 km (0.114 R)
• M6: 5,394,350 km (0.111 R)
• M7: 6,760,926 km (0.071 R)
• M8: 7,362,758 km (0.117 R)
• M9: 7,971,771 km (0.071 R)
• M10: 9,165,263 km (0.114 R)
• M11: 11,868,048 km (0.087 R)
• M12: 13,101,034 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716

Radius: 11.6

Gravity: 5.32 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 3.74 AU - 4.6 AU

Year: 5679 Days

Day: 5.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,004,351 km

• M1: 152,590 km (0.119 R)
• M2: 657,034 km (0.045 R)
• M3: 1,032,076 km (0.068 R)
• M4: 2,039,617 km (0.112 R)
• M5: 2,916,111 km (0.074 R)
• M6: 5,730,646 km (0.094 R)
• M7: 9,139,832 km (0.079 R)
• M8: 9,649,661 km (0.091 R)
• M9: 10,913,464 km (0.107 R)
• M10: 11,487,770 km (0.068 R)
• M11: 12,489,477 km (0.101 R)
• M12: 15,485,175 km (0.103 R)
• M13: 16,895,733 km (0.064 R)
• M14: 17,992,136 km (0.1 R)
• M15: 19,204,028 km (0.111 R)
• M16: 21,269,825 km (0.12 R)
• M17: 22,394,652 km (0.114 R)
• M18: 22,933,054 km (0.099 R)
• M19: 24,844,317 km (0.098 R)
• M20: 25,671,294 km (0.094 R)
• M21: 30,551,176 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 700.4

Radius: 8.4

Gravity: 9.93 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.45 AU - 5.25 AU

Year: 6050 Days

Day: 7.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 66,004,351 km

• M1: 105,766 km (0.075 R)
• M2: 759,957 km (0.04 R)
• M3: 1,243,607 km (0.106 R)
• M4: 1,645,277 km (0.108 R)
• M5: 2,178,893 km (0.03 R)
• M6: 2,998,241 km (0.063 R)
• M7: 3,327,057 km (0.09 R)
• M8: 4,539,697 km (0.092 R)
• M9: 5,260,609 km (0.033 R)
• M10: 5,618,148 km (0.042 R)
• M11: 6,348,934 km (0.066 R)
• M12: 6,651,570 km (0.074 R)
• M13: 8,593,350 km (0.088 R)
• M14: 10,232,195 km (0.082 R)
• M15: 13,556,858 km (0.036 R)
• M16: 14,517,277 km (0.103 R)
• M17: 17,278,255 km (0.109 R)
• M18: 21,179,468 km (0.075 R)
• M19: 24,137,916 km (0.115 R)
• M20: 25,210,233 km (0.071 R)
• M21: 26,659,837 km (0.107 R)
• M22: 27,184,626 km (0.106 R)
• M23: 28,435,563 km (0.073 R)
• M24: 31,730,456 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 337.7

Radius: 6.1

Gravity: 9.08 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 9.32 AU - 11.88 AU

Year: 23014 Days

Day: 22.9 Hours

Environment

Temp: -243 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 66,004,351 km

• M1: 75,846 km (0.11 R)
• M2: 281,094 km (0.119 R)
• M3: 619,335 km (0.101 R)
• M4: 847,023 km (0.078 R)
• M5: 1,045,390 km (0.101 R)
• M6: 1,492,388 km (0.096 R)
• M7: 1,873,863 km (0.072 R)
• M8: 2,759,632 km (0.099 R)
• M9: 4,960,366 km (0.113 R)
• M10: 6,577,070 km (0.064 R)
• M11: 7,597,328 km (0.083 R)
• M12: 8,072,152 km (0.111 R)
• M13: 9,133,698 km (0.039 R)
• M14: 11,164,788 km (0.082 R)
• M15: 11,407,586 km (0.033 R)
• M16: 13,685,213 km (0.104 R)
• M17: 14,033,477 km (0.087 R)
• M18: 15,188,073 km (0.09 R)
• M19: 19,551,694 km (0.039 R)
• M20: 25,934,586 km (0.078 R)
• M21: 27,446,721 km (0.119 R)
• M22: 28,562,273 km (0.108 R)
• M23: 29,360,976 km (0.12 R)
• M24: 33,578,738 km (0.103 R)
• M25: 33,831,259 km (0.096 R)
• M26: 36,693,366 km (0.047 R)
• M27: 43,340,448 km (0.075 R)
• M28: 45,619,721 km (0.089 R)
• M29: 55,009,979 km (0.078 R)
• M30: 63,659,280 km (0.111 R)
• M31: 65,609,587 km (0.084 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 197 - 16,784 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit