🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.49 AU - 0.73 AU

Year: 308 Days

Day: 42.4 Hours

Environment

Temp: -129 °C

Axial Tilt: 33.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 93,141,675 km

• M1: 432,338 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12

Radius: 8.4

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.59 AU - 0.81 AU

Year: 378 Days

Day: 13.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 93,141,675 km

• M1: 104,419 km (0.106 R)
• M2: 493,075 km (0.08 R)
• M3: 1,057,059 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414

Radius: 13.5

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.13 AU - 1.41 AU

Year: 924 Days

Day: 14.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 93,141,675 km

• M1: 168,148 km (0.108 R)
• M2: 623,823 km (0.108 R)
• M3: 1,099,544 km (0.032 R)
• M4: 1,801,009 km (0.116 R)
• M5: 2,597,917 km (0.11 R)
• M6: 3,312,097 km (0.036 R)
• M7: 3,945,644 km (0.101 R)
• M8: 5,064,486 km (0.117 R)
• M9: 5,493,683 km (0.059 R)
• M10: 6,243,318 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937

Radius: 8.9

Gravity: 11.83 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.92 AU - 2.9 AU

Year: 2416 Days

Day: 9.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 93,141,675 km

• M1: 110,702 km (0.12 R)
• M2: 443,109 km (0.12 R)
• M3: 783,294 km (0.06 R)
• M4: 1,125,425 km (0.105 R)
• M5: 1,404,874 km (0.118 R)
• M6: 1,708,856 km (0.091 R)
• M7: 2,409,423 km (0.1 R)
• M8: 3,379,117 km (0.107 R)
• M9: 3,735,010 km (0.107 R)
• M10: 4,500,502 km (0.032 R)
• M11: 5,441,623 km (0.062 R)
• M12: 5,879,196 km (0.116 R)
• M13: 6,367,933 km (0.06 R)
• M14: 7,303,667 km (0.117 R)
• M15: 7,901,012 km (0.076 R)
• M16: 10,503,117 km (0.11 R)
• M17: 12,628,454 km (0.084 R)
• M18: 14,004,605 km (0.04 R)
• M19: 14,339,554 km (0.117 R)
• M20: 15,579,870 km (0.057 R)
• M21: 16,729,081 km (0.106 R)
• M22: 17,324,481 km (0.071 R)
• M23: 19,254,293 km (0.101 R)
• M24: 20,089,199 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.9

Radius: 11.2

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.93 AU - 4.49 AU

Year: 5577 Days

Day: 7.7 Hours

Environment

Temp: -210 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 93,141,675 km

• M1: 139,276 km (0.099 R)
• M2: 536,907 km (0.071 R)
• M3: 1,252,583 km (0.11 R)
• M4: 1,970,503 km (0.065 R)
• M5: 2,448,020 km (0.073 R)
• M6: 2,926,134 km (0.048 R)
• M7: 3,794,251 km (0.115 R)
• M8: 5,821,152 km (0.11 R)
• M9: 7,366,349 km (0.042 R)
• M10: 8,446,894 km (0.085 R)
• M11: 9,715,484 km (0.066 R)
• M12: 11,924,596 km (0.06 R)
• M13: 12,423,954 km (0.115 R)
• M14: 13,146,362 km (0.114 R)
• M15: 17,375,493 km (0.075 R)
• M16: 18,344,888 km (0.054 R)
• M17: 20,746,532 km (0.087 R)
• M18: 24,053,842 km (0.119 R)
• M19: 31,033,480 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.1

Radius: 10.9

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 4.3 AU - 5.08 AU

Year: 6558 Days

Day: 13.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 93,141,675 km

• M1: 135,536 km (0.114 R)
• M2: 560,543 km (0.067 R)
• M3: 1,259,614 km (0.099 R)
• M4: 1,688,960 km (0.047 R)
• M5: 2,169,020 km (0.05 R)
• M6: 2,578,918 km (0.083 R)
• M7: 2,943,936 km (0.047 R)
• M8: 3,343,662 km (0.026 R)
• M9: 3,756,851 km (0.106 R)
• M10: 5,206,155 km (0.118 R)
• M11: 8,719,461 km (0.1 R)
• M12: 9,253,227 km (0.095 R)
• M13: 9,721,767 km (0.091 R)
• M14: 10,116,855 km (0.119 R)
• M15: 11,463,535 km (0.109 R)
• M16: 11,954,515 km (0.097 R)
• M17: 14,453,099 km (0.087 R)
• M18: 16,096,731 km (0.093 R)
• M19: 17,537,508 km (0.106 R)
• M20: 18,656,201 km (0.088 R)
• M21: 19,198,942 km (0.074 R)
• M22: 20,174,021 km (0.12 R)
• M23: 21,772,474 km (0.098 R)
• M24: 22,374,157 km (0.106 R)
• M25: 26,219,869 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 122.4

Radius: 4

Gravity: 7.65 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 6.81 AU - 10.15 AU

Year: 15944 Days

Day: 15.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 93,141,675 km

• M1: 50,115 km (0.094 R)
• M2: 322,533 km (0.032 R)
• M3: 515,215 km (0.112 R)
• M4: 742,305 km (0.119 R)
• M5: 994,377 km (0.105 R)
• M6: 1,289,683 km (0.063 R)
• M7: 2,512,347 km (0.065 R)
• M8: 4,677,028 km (0.105 R)
• M9: 9,033,467 km (0.032 R)
• M10: 10,062,252 km (0.085 R)
• M11: 17,714,333 km (0.113 R)
• M12: 18,890,022 km (0.091 R)
• M13: 26,696,638 km (0.11 R)
• M14: 32,200,343 km (0.047 R)
• M15: 34,577,154 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 891.1

Radius: 3.6

Gravity: 68.76 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 9.88 AU - 12.24 AU

Year: 23749 Days

Day: 16.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 93,141,675 km

• M1: 44,730 km (0.11 R)
• M2: 235,467 km (0.119 R)
• M3: 359,035 km (0.111 R)
• M4: 478,414 km (0.094 R)
• M5: 1,192,295 km (0.029 R)
• M6: 1,499,419 km (0.101 R)
• M7: 1,662,182 km (0.118 R)
• M8: 1,918,293 km (0.079 R)
• M9: 2,199,837 km (0.057 R)
• M10: 2,315,326 km (0.08 R)
• M11: 2,686,179 km (0.068 R)
• M12: 3,768,819 km (0.108 R)
• M13: 4,002,192 km (0.106 R)
• M14: 6,092,822 km (0.073 R)
• M15: 7,090,939 km (0.109 R)
• M16: 8,872,051 km (0.113 R)
• M17: 9,225,102 km (0.044 R)
• M18: 13,134,992 km (0.117 R)
• M19: 14,785,805 km (0.097 R)
• M20: 17,467,795 km (0.099 R)
• M21: 23,882,103 km (0.109 R)
• M22: 24,449,528 km (0.114 R)
• M23: 25,611,455 km (0.057 R)
• M24: 27,422,636 km (0.075 R)
• M25: 28,170,476 km (0.089 R)
• M26: 29,576,397 km (0.077 R)
• M27: 30,627,920 km (0.118 R)
• M28: 33,789,372 km (0.074 R)
• M29: 39,163,077 km (0.069 R)
• M30: 44,224,123 km (0.115 R)
• M31: 46,119,677 km (0.032 R)
• M32: 52,892,422 km (0.043 R)
• M33: 60,298,414 km (0.102 R)
• M34: 63,056,101 km (0.12 R)
• M35: 72,066,530 km (0.063 R)
• M36: 76,631,659 km (0.052 R)
• M37: 79,109,897 km (0.113 R)
• M38: 93,141,729 km (0.03 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 514 - 19,311 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit