🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.9

Radius: 9.9

Gravity: 8.77 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.73 AU - 0.87 AU

Year: 485 Days

Day: 11.9 Hours

Environment

Temp: -171 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,846,489 km

• M1: 123,119 km (0.113 R)
• M2: 446,250 km (0.059 R)
• M3: 932,743 km (0.087 R)
• M4: 1,361,341 km (0.114 R)
• M5: 2,182,633 km (0.116 R)
• M6: 2,490,655 km (0.065 R)
• M7: 2,872,130 km (0.085 R)
• M8: 3,454,364 km (0.067 R)
• M9: 3,848,555 km (0.081 R)
• M10: 4,480,905 km (0.108 R)
• M11: 4,838,294 km (0.053 R)
• M12: 5,897,746 km (0.061 R)
• M13: 6,698,993 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.9

Radius: 15

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.72 AU - 1.18 AU

Year: 628 Days

Day: 14.1 Hours

Environment

Temp: -174 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 28,846,489 km

• M1: 187,147 km (0.045 R)
• M2: 1,071,869 km (0.063 R)
• M3: 2,327,593 km (0.111 R)
• M4: 3,298,932 km (0.063 R)
• M5: 4,142,515 km (0.074 R)
• M6: 4,863,128 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 774

Radius: 11.8

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.97 AU - 1.49 AU

Year: 925 Days

Day: 12.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,846,489 km

• M1: 146,756 km (0.111 R)
• M2: 767,138 km (0.048 R)
• M3: 1,165,367 km (0.068 R)
• M4: 1,696,889 km (0.064 R)
• M5: 2,070,435 km (0.069 R)
• M6: 2,534,188 km (0.113 R)
• M7: 4,176,324 km (0.114 R)
• M8: 6,394,262 km (0.079 R)
• M9: 6,913,366 km (0.088 R)
• M10: 8,722,902 km (0.039 R)
• M11: 10,182,678 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.5

Radius: 13.7

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.26 AU - 1.36 AU

Year: 1017 Days

Day: 8 Hours

Environment

Temp: -178 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,846,489 km

• M1: 170,392 km (0.101 R)
• M2: 668,254 km (0.112 R)
• M3: 1,171,950 km (0.116 R)
• M4: 1,897,350 km (0.072 R)
• M5: 2,459,838 km (0.108 R)
• M6: 3,270,509 km (0.111 R)
• M7: 3,863,215 km (0.043 R)
• M8: 4,474,772 km (0.067 R)
• M9: 5,285,742 km (0.11 R)
• M10: 6,938,798 km (0.083 R)
• M11: 7,618,421 km (0.071 R)
• M12: 9,111,109 km (0.116 R)
• M13: 10,017,223 km (0.104 R)
• M14: 10,539,170 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926

Radius: 9.3

Gravity: 10.71 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.36 AU - 1.86 AU

Year: 1386 Days

Day: 7.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 28,846,489 km

• M1: 115,639 km (0.119 R)
• M2: 441,463 km (0.119 R)
• M3: 766,988 km (0.097 R)
• M4: 1,085,781 km (0.1 R)
• M5: 1,389,764 km (0.091 R)
• M6: 2,223,174 km (0.087 R)
• M7: 2,521,921 km (0.073 R)
• M8: 2,833,683 km (0.086 R)
• M9: 4,199,362 km (0.072 R)
• M10: 4,739,709 km (0.085 R)
• M11: 5,819,507 km (0.053 R)
• M12: 6,319,014 km (0.107 R)
• M13: 6,821,065 km (0.089 R)
• M14: 7,933,474 km (0.119 R)
• M15: 8,668,748 km (0.084 R)
• M16: 8,975,274 km (0.096 R)
• M17: 10,173,104 km (0.042 R)
• M18: 12,183,849 km (0.083 R)
• M19: 12,922,563 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.1

Radius: 10.7

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.64 AU - 3.46 AU

Year: 3613 Days

Day: 5.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 28,846,489 km

• M1: 137,480 km (0.1 R)
• M2: 479,162 km (0.088 R)
• M3: 1,184,516 km (0.076 R)
• M4: 2,258,030 km (0.096 R)
• M5: 3,213,961 km (0.114 R)
• M6: 3,698,807 km (0.118 R)
• M7: 4,157,923 km (0.092 R)
• M8: 5,255,672 km (0.098 R)
• M9: 6,144,433 km (0.061 R)
• M10: 6,612,375 km (0.09 R)
• M11: 6,998,488 km (0.078 R)
• M12: 7,759,642 km (0.102 R)
• M13: 8,605,169 km (0.109 R)
• M14: 9,255,022 km (0.079 R)
• M15: 9,870,916 km (0.093 R)
• M16: 10,410,516 km (0.09 R)
• M17: 11,402,200 km (0.113 R)
• M18: 12,224,689 km (0.06 R)
• M19: 13,655,144 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.1

Radius: 8.2

Gravity: 12.24 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 3.02 AU - 3.38 AU

Year: 3883 Days

Day: 7.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 28,846,489 km

• M1: 102,026 km (0.102 R)
• M2: 781,649 km (0.059 R)
• M3: 1,046,736 km (0.11 R)
• M4: 2,005,359 km (0.086 R)
• M5: 2,515,189 km (0.106 R)
• M6: 3,813,998 km (0.107 R)
• M7: 4,949,296 km (0.118 R)
• M8: 5,211,691 km (0.071 R)
• M9: 5,622,786 km (0.077 R)
• M10: 6,356,114 km (0.097 R)
• M11: 6,987,417 km (0.082 R)
• M12: 8,011,864 km (0.1 R)
• M13: 8,448,390 km (0.104 R)
• M14: 9,133,100 km (0.073 R)
• M15: 9,488,993 km (0.039 R)
• M16: 10,019,467 km (0.102 R)
• M17: 10,526,454 km (0.102 R)
• M18: 11,637,817 km (0.087 R)
• M19: 13,423,118 km (0.102 R)
• M20: 14,407,621 km (0.099 R)
• M21: 23,931,620 km (0.05 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 620.4

Radius: 10.9

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.66 AU - 3.82 AU

Year: 4906 Days

Day: 9.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 28,846,489 km

• M1: 253,120 km (0.098 R)
• M2: 880,084 km (0.068 R)
• M3: 1,324,839 km (0.116 R)
• M4: 1,786,797 km (0.116 R)
• M5: 2,386,535 km (0.037 R)
• M6: 2,839,966 km (0.062 R)
• M7: 4,886,315 km (0.062 R)
• M8: 8,965,550 km (0.069 R)
• M9: 9,323,388 km (0.089 R)
• M10: 10,586,144 km (0.09 R)
• M11: 12,491,871 km (0.06 R)
• M12: 16,611,497 km (0.079 R)
• M13: 17,767,590 km (0.037 R)
• M14: 18,653,358 km (0.104 R)
• M15: 25,936,082 km (0.076 R)
• M16: 28,078,324 km (0.099 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: 461 - 16,238 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit