🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.2

Radius: 9.1

Gravity: 10.92 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.01 AU - 1.43 AU

Year: 930 Days

Day: 11.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 31,938,251 km

• M1: 113,246 km (0.074 R)
• M2: 425,307 km (0.082 R)
• M3: 838,646 km (0.08 R)
• M4: 1,440,328 km (0.095 R)
• M5: 1,757,925 km (0.052 R)
• M6: 2,273,588 km (0.104 R)
• M7: 2,646,536 km (0.102 R)
• M8: 3,032,947 km (0.088 R)
• M9: 3,808,313 km (0.093 R)
• M10: 4,764,991 km (0.052 R)
• M11: 5,339,447 km (0.093 R)
• M12: 5,810,531 km (0.105 R)
• M13: 7,268,661 km (0.113 R)
• M14: 7,899,665 km (0.11 R)
• M15: 8,430,438 km (0.109 R)
• M16: 9,242,007 km (0.118 R)
• M17: 9,622,285 km (0.076 R)
• M18: 10,571,483 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.9

Radius: 10.1

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.41 AU - 1.45 AU

Year: 1180 Days

Day: 9.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,938,251 km

• M1: 131,048 km (0.091 R)
• M2: 483,650 km (0.032 R)
• M3: 1,050,177 km (0.115 R)
• M4: 1,365,081 km (0.062 R)
• M5: 1,880,595 km (0.056 R)
• M6: 2,204,325 km (0.1 R)
• M7: 2,709,666 km (0.078 R)
• M8: 3,063,764 km (0.103 R)
• M9: 3,395,572 km (0.092 R)
• M10: 3,737,254 km (0.106 R)
• M11: 4,490,778 km (0.043 R)
• M12: 5,041,299 km (0.093 R)
• M13: 6,297,771 km (0.105 R)
• M14: 7,521,781 km (0.081 R)

Asteroid Belt

Center: 1.76 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.9

Radius: 9.8

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.94 AU - 2.22 AU

Year: 2071 Days

Day: 7.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,938,251 km

• M1: 121,922 km (0.105 R)
• M2: 445,802 km (0.106 R)
• M3: 830,418 km (0.068 R)
• M4: 1,308,981 km (0.099 R)
• M5: 1,976,637 km (0.085 R)
• M6: 2,324,302 km (0.08 R)
• M7: 2,871,531 km (0.06 R)
• M8: 4,281,341 km (0.119 R)
• M9: 4,599,237 km (0.112 R)
• M10: 5,171,449 km (0.068 R)
• M11: 5,555,616 km (0.092 R)
• M12: 6,824,206 km (0.119 R)
• M13: 7,231,711 km (0.093 R)
• M14: 8,006,029 km (0.078 R)
• M15: 8,739,956 km (0.111 R)
• M16: 10,131,516 km (0.116 R)
• M17: 10,734,694 km (0.115 R)
• M18: 13,686,111 km (0.06 R)
• M19: 14,116,653 km (0.046 R)
• M20: 15,004,966 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.3

Radius: 9.2

Gravity: 8.43 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.06 AU - 2.76 AU

Year: 2582 Days

Day: 6.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 45.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,938,251 km

• M1: 115,190 km (0.111 R)
• M2: 474,824 km (0.106 R)
• M3: 786,885 km (0.05 R)
• M4: 1,074,711 km (0.057 R)
• M5: 1,737,878 km (0.115 R)
• M6: 2,447,272 km (0.057 R)
• M7: 2,916,560 km (0.081 R)
• M8: 4,178,418 km (0.117 R)
• M9: 4,560,491 km (0.051 R)
• M10: 4,919,676 km (0.09 R)
• M11: 5,419,632 km (0.085 R)
• M12: 5,822,948 km (0.055 R)
• M13: 8,411,140 km (0.118 R)
• M14: 9,267,588 km (0.085 R)
• M15: 9,772,032 km (0.063 R)
• M16: 12,229,028 km (0.078 R)
• M17: 14,778,175 km (0.077 R)
• M18: 15,718,099 km (0.12 R)
• M19: 17,553,066 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 187.9

Radius: 14

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 4.98 AU - 5.26 AU

Year: 7997 Days

Day: 14.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,938,251 km

• M1: 175,927 km (0.078 R)
• M2: 765,642 km (0.057 R)
• M3: 1,867,430 km (0.093 R)
• M4: 3,794,251 km (0.076 R)
• M5: 4,982,207 km (0.09 R)
• M6: 6,224,917 km (0.086 R)
• M7: 7,699,653 km (0.052 R)
• M8: 8,931,591 km (0.096 R)
• M9: 10,207,362 km (0.101 R)
• M10: 10,759,079 km (0.062 R)
• M11: 13,069,618 km (0.114 R)
• M12: 15,472,010 km (0.112 R)
• M13: 17,071,062 km (0.117 R)
• M14: 20,730,076 km (0.069 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 344.1

Radius: 6.4

Gravity: 8.4 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.98 AU - 6.22 AU

Year: 9147 Days

Day: 15.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,938,251 km

• M1: 100,829 km (0.11 R)
• M2: 374,892 km (0.06 R)
• M3: 574,905 km (0.062 R)
• M4: 1,894,208 km (0.094 R)
• M5: 3,236,550 km (0.069 R)
• M6: 5,116,995 km (0.1 R)
• M7: 9,648,315 km (0.115 R)
• M8: 13,563,291 km (0.112 R)
• M9: 15,559,226 km (0.058 R)
• M10: 15,993,209 km (0.051 R)
• M11: 17,015,561 km (0.089 R)
• M12: 23,347,141 km (0.114 R)
• M13: 25,165,803 km (0.039 R)
• M14: 26,988,054 km (0.077 R)
• M15: 29,457,766 km (0.119 R)
• M16: 29,741,104 km (0.08 R)
• M17: 34,109,212 km (0.084 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 345.9

Radius: 7.8

Gravity: 5.69 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 7.11 AU - 8.79 AU

Year: 15473 Days

Day: 24.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 31,938,251 km

• M1: 105,466 km (0.07 R)
• M2: 846,425 km (0.098 R)
• M3: 1,486,853 km (0.066 R)
• M4: 2,065,049 km (0.089 R)
• M5: 2,319,814 km (0.044 R)
• M6: 2,616,168 km (0.038 R)
• M7: 3,096,975 km (0.1 R)
• M8: 4,588,017 km (0.066 R)
• M9: 7,770,712 km (0.05 R)
• M10: 8,301,784 km (0.099 R)
• M11: 8,762,546 km (0.108 R)
• M12: 9,143,422 km (0.05 R)
• M13: 9,989,398 km (0.091 R)
• M14: 13,645,869 km (0.099 R)
• M15: 16,051,253 km (0.068 R)
• M16: 21,943,614 km (0.111 R)
• M17: 28,300,177 km (0.113 R)
• M18: 45,611,344 km (0.095 R)
• M19: 48,654,314 km (0.111 R)
• M20: 50,452,480 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 46.6

Radius: 7

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 7.74 AU - 11.66 AU

Year: 20853 Days

Day: 19.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,938,251 km

• M1: 87,066 km (0.101 R)
• M2: 323,281 km (0.091 R)
• M3: 666,459 km (0.059 R)
• M4: 981,960 km (0.106 R)
• M5: 2,763,372 km (0.049 R)
• M6: 4,287,325 km (0.111 R)
• M7: 6,864,298 km (0.075 R)
• M8: 7,825,913 km (0.114 R)
• M9: 8,165,650 km (0.04 R)
• M10: 8,955,826 km (0.105 R)
• M11: 14,402,685 km (0.092 R)
• M12: 14,913,262 km (0.113 R)
• M13: 15,910,482 km (0.026 R)
• M14: 18,167,764 km (0.079 R)
• M15: 27,481,727 km (0.11 R)
• M16: 28,977,407 km (0.097 R)
• M17: 31,842,804 km (0.108 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 17,584 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit