🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.8

Radius: 11.1

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.69 AU - 1.11 AU

Year: 579 Days

Day: 7.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,494,072 km

• M1: 138,079 km (0.111 R)
• M2: 529,876 km (0.102 R)
• M3: 889,210 km (0.072 R)
• M4: 1,270,684 km (0.048 R)
• M5: 1,741,768 km (0.097 R)
• M6: 2,310,390 km (0.083 R)
• M7: 2,683,038 km (0.115 R)
• M8: 4,170,639 km (0.109 R)
• M9: 4,584,128 km (0.045 R)
• M10: 4,934,635 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 837

Radius: 12.7

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 0.83 AU - 1.13 AU

Year: 658 Days

Day: 11.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,494,072 km

• M1: 157,975 km (0.099 R)
• M2: 644,019 km (0.119 R)
• M3: 1,058,555 km (0.109 R)
• M4: 1,536,221 km (0.11 R)
• M5: 2,578,618 km (0.083 R)
• M6: 3,029,207 km (0.061 R)
• M7: 6,032,534 km (0.102 R)
• M8: 6,538,624 km (0.099 R)
• M9: 7,453,116 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.3

Radius: 8.9

Gravity: 9.98 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.95 AU - 1.43 AU

Year: 880 Days

Day: 8 Hours

Environment

Temp: -176 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,494,072 km

• M1: 114,143 km (0.11 R)
• M2: 493,972 km (0.102 R)
• M3: 798,703 km (0.105 R)
• M4: 1,080,845 km (0.071 R)
• M5: 1,385,426 km (0.067 R)
• M6: 1,694,645 km (0.045 R)
• M7: 2,141,643 km (0.072 R)
• M8: 2,570,839 km (0.119 R)
• M9: 3,662,006 km (0.04 R)
• M10: 4,065,472 km (0.087 R)
• M11: 5,797,665 km (0.105 R)
• M12: 6,303,605 km (0.096 R)
• M13: 7,283,322 km (0.047 R)
• M14: 8,127,353 km (0.049 R)
• M15: 8,842,880 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.7

Radius: 14.3

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.17 AU - 1.69 AU

Year: 1160 Days

Day: 9.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,494,072 km

• M1: 177,872 km (0.098 R)
• M2: 803,789 km (0.075 R)
• M3: 1,269,488 km (0.117 R)
• M4: 1,735,485 km (0.098 R)
• M5: 2,284,958 km (0.109 R)
• M6: 2,859,115 km (0.097 R)
• M7: 3,499,094 km (0.101 R)
• M8: 4,148,947 km (0.11 R)
• M9: 4,935,084 km (0.091 R)
• M10: 5,485,754 km (0.091 R)
• M11: 6,231,798 km (0.106 R)
• M12: 7,166,336 km (0.056 R)
• M13: 8,463,948 km (0.032 R)
• M14: 9,082,386 km (0.054 R)
• M15: 9,730,743 km (0.088 R)
• M16: 10,536,776 km (0.101 R)
• M17: 11,054,684 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.6

Radius: 12.6

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.44 AU - 2.44 AU

Year: 2585 Days

Day: 6.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,494,072 km

• M1: 157,078 km (0.052 R)
• M2: 566,228 km (0.096 R)
• M3: 1,100,442 km (0.044 R)
• M4: 1,497,026 km (0.101 R)
• M5: 1,890,917 km (0.104 R)
• M6: 2,692,462 km (0.075 R)
• M7: 3,109,242 km (0.117 R)
• M8: 3,926,047 km (0.055 R)
• M9: 4,902,322 km (0.071 R)
• M10: 5,529,287 km (0.096 R)
• M11: 6,465,321 km (0.051 R)
• M12: 7,109,190 km (0.112 R)
• M13: 8,842,581 km (0.064 R)
• M14: 10,370,274 km (0.06 R)
• M15: 11,178,102 km (0.054 R)
• M16: 12,266,577 km (0.118 R)
• M17: 13,768,240 km (0.114 R)
• M18: 14,384,134 km (0.026 R)
• M19: 15,064,506 km (0.094 R)
• M20: 15,624,002 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.1

Radius: 10.5

Gravity: 7.65 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.8 AU - 4.1 AU

Year: 4346 Days

Day: 10.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,494,072 km

• M1: 130,749 km (0.115 R)
• M2: 708,196 km (0.061 R)
• M3: 1,065,286 km (0.103 R)
• M4: 2,512,795 km (0.074 R)
• M5: 2,876,468 km (0.098 R)
• M6: 3,540,682 km (0.052 R)
• M7: 3,909,740 km (0.09 R)
• M8: 4,256,508 km (0.119 R)
• M9: 4,854,601 km (0.117 R)
• M10: 7,715,211 km (0.09 R)
• M11: 8,877,287 km (0.091 R)
• M12: 9,896,498 km (0.074 R)
• M13: 10,588,687 km (0.07 R)
• M14: 11,639,911 km (0.11 R)
• M15: 15,609,790 km (0.093 R)
• M16: 17,091,557 km (0.032 R)
• M17: 18,151,308 km (0.082 R)
• M18: 18,600,102 km (0.069 R)
• M19: 20,539,339 km (0.06 R)
• M20: 27,579,863 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 683.6

Radius: 3.3

Gravity: 62.77 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 5.53 AU - 6.23 AU

Year: 9671 Days

Day: 15.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 72,494,072 km

• M1: 41,738 km (0.111 R)
• M2: 156,180 km (0.028 R)
• M3: 279,150 km (0.099 R)
• M4: 421,118 km (0.098 R)
• M5: 603,029 km (0.117 R)
• M6: 882,777 km (0.071 R)
• M7: 1,046,587 km (0.093 R)
• M8: 1,159,084 km (0.096 R)
• M9: 1,342,940 km (0.116 R)
• M10: 1,677,441 km (0.099 R)
• M11: 1,864,289 km (0.103 R)
• M12: 2,298,272 km (0.049 R)
• M13: 3,127,044 km (0.119 R)
• M14: 3,459,152 km (0.111 R)
• M15: 6,508,555 km (0.111 R)
• M16: 6,813,435 km (0.106 R)
• M17: 7,827,709 km (0.056 R)
• M18: 9,267,438 km (0.084 R)
• M19: 10,150,216 km (0.078 R)
• M20: 11,087,596 km (0.103 R)
• M21: 11,467,275 km (0.092 R)
• M22: 12,081,225 km (0.094 R)
• M23: 12,252,365 km (0.081 R)
• M24: 16,510,369 km (0.116 R)
• M25: 16,791,912 km (0.094 R)
• M26: 25,376,885 km (0.026 R)
• M27: 28,379,314 km (0.072 R)
• M28: 31,394,460 km (0.111 R)
• M29: 32,262,426 km (0.094 R)
• M30: 33,481,649 km (0.104 R)
• M31: 43,553,176 km (0.106 R)
• M32: 44,360,705 km (0.106 R)
• M33: 45,041,077 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 838.8

Radius: 3.6

Gravity: 64.72 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 6.42 AU - 10.58 AU

Year: 16808 Days

Day: 20.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 72,494,072 km

• M1: 46,076 km (0.071 R)
• M2: 207,642 km (0.117 R)
• M3: 795,412 km (0.12 R)
• M4: 1,046,288 km (0.094 R)
• M5: 1,163,273 km (0.102 R)
• M6: 1,303,446 km (0.087 R)
• M7: 2,486,167 km (0.057 R)
• M8: 3,045,813 km (0.119 R)
• M9: 3,804,573 km (0.102 R)
• M10: 4,716,372 km (0.105 R)
• M11: 7,711,621 km (0.106 R)
• M12: 8,412,786 km (0.054 R)
• M13: 9,883,183 km (0.104 R)
• M14: 11,708,277 km (0.078 R)
• M15: 12,632,194 km (0.07 R)
• M16: 16,733,270 km (0.102 R)
• M17: 26,194,886 km (0.093 R)
• M18: 27,312,233 km (0.082 R)
• M19: 38,404,915 km (0.113 R)
• M20: 38,976,678 km (0.054 R)
• M21: 41,320,727 km (0.096 R)
• M22: 42,527,383 km (0.086 R)
• M23: 43,912,510 km (0.085 R)
• M24: 52,860,258 km (0.099 R)
• M25: 57,944,641 km (0.105 R)
• M26: 61,185,380 km (0.104 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 226 - 11,018 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit