🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.5

Radius: 13

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.47 AU - 0.57 AU

Year: 254 Days

Day: 14.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 68,958,788 km

• M1: 161,715 km (0.115 R)
• M2: 588,668 km (0.038 R)
• M3: 1,068,428 km (0.118 R)
• M4: 1,477,728 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.9

Radius: 9.6

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.82 AU - 1.1 AU

Year: 638 Days

Day: 10.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 68,958,788 km

• M1: 119,828 km (0.09 R)
• M2: 469,289 km (0.108 R)
• M3: 796,160 km (0.073 R)
• M4: 1,581,698 km (0.096 R)
• M5: 1,917,097 km (0.117 R)
• M6: 2,549,447 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.1

Radius: 9.2

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.25 AU - 1.41 AU

Year: 1040 Days

Day: 12.2 Hours

Environment

Temp: -192 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,958,788 km

• M1: 114,442 km (0.091 R)
• M2: 641,625 km (0.097 R)
• M3: 1,072,318 km (0.118 R)
• M4: 1,637,947 km (0.083 R)
• M5: 2,123,542 km (0.113 R)
• M6: 2,819,770 km (0.049 R)
• M7: 3,251,061 km (0.044 R)
• M8: 4,090,604 km (0.094 R)
• M9: 4,449,789 km (0.09 R)
• M10: 6,065,446 km (0.065 R)
• M11: 6,457,093 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.2

Radius: 14.2

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.09 AU - 1.65 AU

Year: 1088 Days

Day: 14.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 54.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,958,788 km

• M1: 176,675 km (0.102 R)
• M2: 857,645 km (0.101 R)
• M3: 1,504,805 km (0.087 R)
• M4: 2,195,050 km (0.053 R)
• M5: 2,718,343 km (0.111 R)
• M6: 3,410,532 km (0.104 R)
• M7: 4,456,670 km (0.079 R)
• M8: 5,246,996 km (0.1 R)
• M9: 7,953,670 km (0.115 R)
• M10: 8,949,393 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.4

Radius: 13.5

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.53 AU - 3.69 AU

Year: 3720 Days

Day: 8.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,958,788 km

• M1: 327,619 km (0.092 R)
• M2: 798,553 km (0.082 R)
• M3: 1,561,353 km (0.119 R)
• M4: 2,944,086 km (0.073 R)
• M5: 3,424,146 km (0.092 R)
• M6: 4,172,883 km (0.066 R)
• M7: 4,760,204 km (0.073 R)
• M8: 8,698,967 km (0.117 R)
• M9: 10,923,936 km (0.117 R)
• M10: 13,020,400 km (0.081 R)
• M11: 15,667,086 km (0.097 R)
• M12: 16,115,580 km (0.113 R)
• M13: 17,090,659 km (0.114 R)
• M14: 17,780,156 km (0.087 R)
• M15: 18,654,256 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 295.4

Radius: 4.3

Gravity: 15.98 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 5.41 AU - 6.79 AU

Year: 10218 Days

Day: 16.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,958,788 km

• M1: 54,005 km (0.075 R)
• M2: 351,405 km (0.036 R)
• M3: 783,594 km (0.076 R)
• M4: 1,336,208 km (0.079 R)
• M5: 1,765,105 km (0.098 R)
• M6: 2,656,559 km (0.114 R)
• M7: 4,584,427 km (0.054 R)
• M8: 5,894,605 km (0.098 R)
• M9: 8,017,249 km (0.054 R)
• M10: 9,851,917 km (0.115 R)
• M11: 14,033,627 km (0.094 R)
• M12: 19,986,276 km (0.117 R)
• M13: 22,583,145 km (0.114 R)
• M14: 26,266,095 km (0.11 R)
• M15: 27,245,662 km (0.108 R)
• M16: 28,620,317 km (0.116 R)
• M17: 32,308,353 km (0.081 R)
• M18: 34,687,707 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 764.3

Radius: 6.1

Gravity: 20.54 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 6.56 AU - 6.98 AU

Year: 11947 Days

Day: 17 Hours

Environment

Temp: -234 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,958,788 km

• M1: 77,043 km (0.118 R)
• M2: 331,509 km (0.098 R)
• M3: 550,371 km (0.097 R)
• M4: 1,790,088 km (0.096 R)
• M5: 2,048,444 km (0.072 R)
• M6: 2,253,692 km (0.059 R)
• M7: 3,191,970 km (0.11 R)
• M8: 5,102,185 km (0.057 R)
• M9: 6,938,499 km (0.084 R)
• M10: 7,711,471 km (0.093 R)
• M11: 8,829,416 km (0.03 R)
• M12: 13,015,613 km (0.036 R)
• M13: 15,286,359 km (0.115 R)
• M14: 18,841,852 km (0.084 R)
• M15: 23,848,145 km (0.074 R)
• M16: 25,299,244 km (0.062 R)
• M17: 29,128,501 km (0.059 R)
• M18: 34,284,990 km (0.086 R)
• M19: 39,351,570 km (0.118 R)
• M20: 41,785,827 km (0.085 R)
• M21: 43,889,622 km (0.079 R)
• M22: 45,916,074 km (0.048 R)
• M23: 54,645,858 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 596.2

Radius: 7.4

Gravity: 10.89 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 7.83 AU - 10.29 AU

Year: 18496 Days

Day: 16.9 Hours

Environment

Temp: -242 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 68,958,788 km

• M1: 93,349 km (0.081 R)
• M2: 390,301 km (0.115 R)
• M3: 805,435 km (0.107 R)
• M4: 1,129,763 km (0.097 R)
• M5: 1,896,153 km (0.117 R)
• M6: 2,391,172 km (0.048 R)
• M7: 2,774,891 km (0.115 R)
• M8: 4,368,557 km (0.107 R)
• M9: 5,760,715 km (0.102 R)
• M10: 7,900,114 km (0.105 R)
• M11: 8,144,557 km (0.081 R)
• M12: 9,389,361 km (0.115 R)
• M13: 9,663,873 km (0.117 R)
• M14: 10,057,315 km (0.065 R)
• M15: 11,363,305 km (0.09 R)
• M16: 12,980,458 km (0.109 R)
• M17: 15,494,001 km (0.097 R)
• M18: 16,584,420 km (0.116 R)
• M19: 18,145,025 km (0.035 R)
• M20: 21,650,552 km (0.117 R)
• M21: 25,053,903 km (0.104 R)
• M22: 26,335,658 km (0.104 R)
• M23: 26,882,438 km (0.108 R)
• M24: 32,024,566 km (0.113 R)
• M25: 38,341,485 km (0.118 R)
• M26: 39,897,603 km (0.108 R)
• M27: 42,384,817 km (0.102 R)
• M28: 43,590,276 km (0.096 R)
• M29: 46,703,558 km (0.114 R)
• M30: 50,128,750 km (0.067 R)
• M31: 53,892,783 km (0.063 R)
• M32: 60,262,510 km (0.108 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 435 - 20,181 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit