🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.6

Radius: 14.6

Gravity: 0.05 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.83 AU - 1.35 AU

Year: 786 Days

Day: 5.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 72,112,088 km

• M1: 182,210 km (0.071 R)
• M2: 820,096 km (0.114 R)
• M3: 1,390,213 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96.2

Radius: 14.6

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.93 AU - 1.45 AU

Year: 896 Days

Day: 14.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,112,088 km

• M1: 182,061 km (0.09 R)
• M2: 808,128 km (0.089 R)
• M3: 1,551,180 km (0.099 R)
• M4: 2,113,968 km (0.066 R)
• M5: 3,061,670 km (0.082 R)
• M6: 3,662,904 km (0.087 R)
• M7: 4,610,008 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.2

Radius: 8.7

Gravity: 6.93 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.99 AU - 1.61 AU

Year: 1023 Days

Day: 12.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,112,088 km

• M1: 108,309 km (0.096 R)
• M2: 401,820 km (0.069 R)
• M3: 710,590 km (0.102 R)
• M4: 1,001,408 km (0.074 R)
• M5: 1,511,986 km (0.068 R)
• M6: 1,818,512 km (0.101 R)
• M7: 2,390,125 km (0.11 R)
• M8: 3,223,236 km (0.06 R)
• M9: 3,502,086 km (0.102 R)
• M10: 3,781,984 km (0.047 R)
• M11: 4,092,699 km (0.079 R)
• M12: 5,931,705 km (0.117 R)
• M13: 6,998,039 km (0.071 R)
• M14: 8,238,355 km (0.116 R)
• M15: 9,364,976 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.6

Radius: 9.7

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.97 AU - 2.37 AU

Year: 2206 Days

Day: 6.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,112,088 km

• M1: 120,576 km (0.098 R)
• M2: 515,664 km (0.069 R)
• M3: 952,190 km (0.076 R)
• M4: 1,274,873 km (0.109 R)
• M5: 1,747,602 km (0.062 R)
• M6: 2,050,538 km (0.111 R)
• M7: 2,764,569 km (0.061 R)
• M8: 3,179,553 km (0.093 R)
• M9: 4,402,366 km (0.086 R)
• M10: 4,970,539 km (0.112 R)
• M11: 6,441,834 km (0.039 R)
• M12: 6,943,585 km (0.115 R)
• M13: 8,088,607 km (0.097 R)
• M14: 9,390,109 km (0.108 R)
• M15: 10,596,167 km (0.03 R)
• M16: 11,779,486 km (0.041 R)
• M17: 14,832,180 km (0.096 R)
• M18: 15,265,864 km (0.109 R)
• M19: 15,907,041 km (0.116 R)
• M20: 16,412,382 km (0.119 R)
• M21: 18,486,557 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.1

Radius: 12

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.39 AU - 3.98 AU

Year: 3914 Days

Day: 9.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,112,088 km

• M1: 150,346 km (0.045 R)
• M2: 644,318 km (0.075 R)
• M3: 1,200,373 km (0.064 R)
• M4: 1,795,922 km (0.083 R)
• M5: 2,670,172 km (0.117 R)
• M6: 3,168,483 km (0.091 R)
• M7: 6,826,300 km (0.056 R)
• M8: 7,685,142 km (0.114 R)
• M9: 8,473,523 km (0.064 R)
• M10: 9,617,797 km (0.092 R)
• M11: 11,961,547 km (0.103 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 113.7

Radius: 4.2

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 5.77 AU - 5.81 AU

Year: 9617 Days

Day: 24.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,112,088 km

• M1: 88,263 km (0.087 R)
• M2: 317,596 km (0.093 R)
• M3: 875,896 km (0.053 R)
• M4: 1,287,439 km (0.105 R)
• M5: 2,355,269 km (0.116 R)
• M6: 5,075,557 km (0.111 R)
• M7: 8,141,266 km (0.119 R)
• M8: 8,466,342 km (0.104 R)
• M9: 10,389,123 km (0.045 R)
• M10: 10,900,898 km (0.114 R)
• M11: 11,474,157 km (0.109 R)
• M12: 13,765,098 km (0.104 R)
• M13: 21,190,389 km (0.076 R)
• M14: 21,598,641 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 446.7

Radius: 7.4

Gravity: 8.16 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 9.84 AU - 10.78 AU

Year: 22851 Days

Day: 23.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 169.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,112,088 km

• M1: 96,640 km (0.049 R)
• M2: 634,295 km (0.049 R)
• M3: 1,217,278 km (0.083 R)
• M4: 2,056,073 km (0.052 R)
• M5: 2,564,407 km (0.12 R)
• M6: 3,127,194 km (0.056 R)
• M7: 4,983,404 km (0.064 R)
• M8: 5,818,160 km (0.099 R)
• M9: 7,617,224 km (0.095 R)
• M10: 15,110,283 km (0.085 R)
• M11: 21,947,504 km (0.097 R)
• M12: 23,546,106 km (0.098 R)
• M13: 30,112,406 km (0.098 R)
• M14: 30,475,480 km (0.119 R)
• M15: 31,458,188 km (0.07 R)
• M16: 38,508,437 km (0.101 R)
• M17: 46,543,039 km (0.044 R)
• M18: 52,245,411 km (0.071 R)
• M19: 53,829,203 km (0.103 R)
• M20: 65,012,991 km (0.066 R)
• M21: 70,185,038 km (0.052 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 289 - 15,937 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit