🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.1

Radius: 12.4

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.55 AU - 0.87 AU

Year: 380 Days

Day: 8.5 Hours

Environment

Temp: -135 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 78,218,809 km

• M1: 154,235 km (0.119 R)
• M2: 625,020 km (0.095 R)
• M3: 1,036,713 km (0.118 R)
• M4: 1,774,979 km (0.1 R)
• M5: 2,305,453 km (0.117 R)
• M6: 2,761,726 km (0.075 R)
• M7: 3,618,922 km (0.074 R)
• M8: 4,033,757 km (0.103 R)
• M9: 4,744,496 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.3

Radius: 11.2

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.91 AU - 0.93 AU

Year: 561 Days

Day: 11.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 78,218,809 km

• M1: 139,724 km (0.108 R)
• M2: 692,489 km (0.078 R)
• M3: 1,194,090 km (0.103 R)
• M4: 1,614,909 km (0.096 R)
• M5: 2,088,835 km (0.095 R)
• M6: 3,384,502 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.9

Radius: 12.1

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.67 AU - 2.15 AU

Year: 1678 Days

Day: 13.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 78,218,809 km

• M1: 150,495 km (0.067 R)
• M2: 786,286 km (0.089 R)
• M3: 1,468,453 km (0.06 R)
• M4: 1,933,702 km (0.103 R)
• M5: 2,372,173 km (0.11 R)
• M6: 2,842,210 km (0.112 R)
• M7: 3,713,468 km (0.114 R)
• M8: 5,290,529 km (0.114 R)
• M9: 7,893,382 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.6

Radius: 12.4

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.83 AU - 2.37 AU

Year: 1935 Days

Day: 7.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 78,218,809 km

• M1: 154,983 km (0.072 R)
• M2: 559,646 km (0.086 R)
• M3: 1,833,023 km (0.102 R)
• M4: 2,576,823 km (0.094 R)
• M5: 4,003,987 km (0.066 R)
• M6: 5,239,516 km (0.046 R)
• M7: 6,969,615 km (0.097 R)
• M8: 7,524,025 km (0.109 R)
• M9: 8,775,860 km (0.067 R)

Asteroid Belt

Center: 2.44 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.1

Radius: 11.7

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.4 AU - 3.14 AU

Year: 2931 Days

Day: 12.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 78,218,809 km

• M1: 145,708 km (0.073 R)
• M2: 638,185 km (0.091 R)
• M3: 1,018,163 km (0.111 R)
• M4: 1,555,967 km (0.111 R)
• M5: 2,049,790 km (0.079 R)
• M6: 2,465,523 km (0.096 R)
• M7: 3,451,073 km (0.079 R)
• M8: 3,920,811 km (0.057 R)
• M9: 4,636,487 km (0.063 R)
• M10: 5,013,773 km (0.107 R)
• M11: 5,386,271 km (0.115 R)
• M12: 5,938,736 km (0.032 R)
• M13: 6,413,560 km (0.094 R)
• M14: 7,631,586 km (0.067 R)
• M15: 8,571,808 km (0.05 R)
• M16: 9,289,579 km (0.094 R)
• M17: 10,086,038 km (0.039 R)
• M18: 12,477,659 km (0.104 R)
• M19: 13,305,683 km (0.073 R)
• M20: 13,733,234 km (0.069 R)
• M21: 17,718,671 km (0.079 R)
• M22: 18,646,327 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 594

Radius: 3

Gravity: 66 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 6.88 AU - 7.14 AU

Year: 11801 Days

Day: 18.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 78,218,809 km

• M1: 220,058 km (0.053 R)
• M2: 339,737 km (0.091 R)
• M3: 1,075,160 km (0.112 R)
• M4: 1,243,158 km (0.106 R)
• M5: 1,442,123 km (0.118 R)
• M6: 2,042,011 km (0.11 R)
• M7: 2,205,521 km (0.112 R)
• M8: 2,558,572 km (0.076 R)
• M9: 2,880,507 km (0.092 R)
• M10: 3,016,641 km (0.069 R)
• M11: 3,630,441 km (0.1 R)
• M12: 4,064,425 km (0.106 R)
• M13: 6,883,148 km (0.114 R)
• M14: 9,042,892 km (0.071 R)
• M15: 9,683,470 km (0.111 R)
• M16: 9,989,248 km (0.096 R)
• M17: 11,220,738 km (0.108 R)
• M18: 11,901,707 km (0.103 R)
• M19: 13,915,893 km (0.114 R)
• M20: 14,969,511 km (0.107 R)
• M21: 30,160,876 km (0.065 R)
• M22: 31,805,704 km (0.112 R)
• M23: 34,559,950 km (0.08 R)
• M24: 45,164,196 km (0.106 R)
• M25: 46,445,352 km (0.077 R)
• M26: 48,633,969 km (0.082 R)
• M27: 50,890,503 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 942.6

Radius: 3.8

Gravity: 65.28 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 5.77 AU - 8.83 AU

Year: 12541 Days

Day: 16.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 78,218,809 km

• M1: 47,273 km (0.106 R)
• M2: 296,353 km (0.116 R)
• M3: 439,519 km (0.097 R)
• M4: 596,746 km (0.104 R)
• M5: 725,101 km (0.12 R)
• M6: 882,478 km (0.067 R)
• M7: 1,451,399 km (0.106 R)
• M8: 1,653,954 km (0.089 R)
• M9: 1,787,844 km (0.108 R)
• M10: 2,658,205 km (0.116 R)
• M11: 3,340,520 km (0.113 R)
• M12: 3,582,719 km (0.118 R)
• M13: 4,539,547 km (0.115 R)
• M14: 5,076,753 km (0.092 R)
• M15: 8,313,752 km (0.105 R)
• M16: 10,581,207 km (0.092 R)
• M17: 12,323,424 km (0.119 R)
• M18: 15,172,366 km (0.084 R)
• M19: 19,441,290 km (0.074 R)
• M20: 24,346,455 km (0.053 R)
• M21: 25,050,313 km (0.096 R)
• M22: 26,922,231 km (0.084 R)
• M23: 28,662,503 km (0.025 R)
• M24: 29,901,622 km (0.119 R)
• M25: 35,088,181 km (0.103 R)
• M26: 35,856,515 km (0.067 R)
• M27: 39,452,549 km (0.103 R)
• M28: 41,978,958 km (0.111 R)
• M29: 42,122,422 km (0.065 R)
• M30: 47,506,749 km (0.09 R)
• M31: 47,818,660 km (0.111 R)
• M32: 49,239,092 km (0.112 R)
• M33: 58,000,291 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 439.3

Radius: 3.5

Gravity: 35.86 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 6.37 AU - 8.69 AU

Year: 13138 Days

Day: 22.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 78,218,809 km

• M1: 43,683 km (0.102 R)
• M2: 262,095 km (0.054 R)
• M3: 515,514 km (0.055 R)
• M4: 694,733 km (0.113 R)
• M5: 874,699 km (0.049 R)
• M6: 1,096,403 km (0.091 R)
• M7: 1,341,444 km (0.101 R)
• M8: 1,712,896 km (0.048 R)
• M9: 2,259,975 km (0.117 R)
• M10: 2,614,372 km (0.111 R)
• M11: 2,982,234 km (0.079 R)
• M12: 3,310,152 km (0.109 R)
• M13: 3,482,938 km (0.111 R)
• M14: 4,497,959 km (0.088 R)
• M15: 4,802,989 km (0.096 R)
• M16: 5,252,830 km (0.059 R)
• M17: 8,650,796 km (0.108 R)
• M18: 9,363,630 km (0.082 R)
• M19: 10,531,690 km (0.052 R)
• M20: 10,744,269 km (0.075 R)
• M21: 12,138,371 km (0.116 R)
• M22: 12,728,236 km (0.067 R)
• M23: 15,966,730 km (0.115 R)
• M24: 16,106,604 km (0.117 R)
• M25: 17,476,622 km (0.119 R)
• M26: 18,457,385 km (0.09 R)
• M27: 21,195,176 km (0.116 R)
• M28: 25,790,523 km (0.11 R)
• M29: 27,358,459 km (0.088 R)
• M30: 27,962,535 km (0.095 R)
• M31: 29,406,304 km (0.101 R)
• M32: 33,919,073 km (0.116 R)
• M33: 34,499,214 km (0.097 R)
• M34: 35,679,092 km (0.113 R)
• M35: 36,038,277 km (0.058 R)
• M36: 36,885,599 km (0.069 R)
• M37: 38,998,669 km (0.115 R)
• M38: 39,763,264 km (0.088 R)
• M39: 41,586,263 km (0.112 R)
• M40: 47,532,180 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 589.4

Radius: 7.7

Gravity: 9.94 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 10.23 AU - 11.31 AU

Year: 22473 Days

Day: 23.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 78,218,809 km

• M1: 96,042 km (0.097 R)
• M2: 446,699 km (0.043 R)
• M3: 702,212 km (0.057 R)
• M4: 1,316,461 km (0.102 R)
• M5: 1,566,140 km (0.112 R)
• M6: 3,388,242 km (0.068 R)
• M7: 5,171,000 km (0.102 R)
• M8: 5,599,149 km (0.11 R)
• M9: 7,601,217 km (0.057 R)
• M10: 13,164,463 km (0.08 R)
• M11: 13,815,363 km (0.054 R)
• M12: 15,025,311 km (0.073 R)
• M13: 15,656,016 km (0.107 R)
• M14: 16,970,382 km (0.096 R)
• M15: 17,828,177 km (0.107 R)
• M16: 18,986,214 km (0.083 R)
• M17: 22,453,892 km (0.107 R)
• M18: 24,877,528 km (0.093 R)
• M19: 32,529,459 km (0.112 R)
• M20: 35,900,647 km (0.098 R)
• M21: 40,849,494 km (0.106 R)
• M22: 42,231,628 km (0.108 R)
• M23: 51,895,651 km (0.099 R)
• M24: 62,530,115 km (0.083 R)
• M25: 71,838,543 km (0.115 R)
• M26: 74,528,612 km (0.113 R)
• M27: 77,984,622 km (0.076 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 11,159 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit