🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.1

Radius: 12.5

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.63 AU - 0.73 AU

Year: 380 Days

Day: 5.5 Hours

Environment

Temp: -148 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 23,920,124 km

• M1: 155,582 km (0.056 R)
• M2: 587,620 km (0.053 R)
• M3: 1,165,966 km (0.065 R)
• M4: 1,652,608 km (0.101 R)
• M5: 2,320,562 km (0.094 R)
• M6: 2,840,415 km (0.05 R)
• M7: 3,239,392 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.4

Radius: 12.5

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.82 AU - 1.08 AU

Year: 628 Days

Day: 11.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 85.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 23,920,124 km

• M1: 155,432 km (0.065 R)
• M2: 601,383 km (0.051 R)
• M3: 1,210,247 km (0.081 R)
• M4: 1,783,655 km (0.059 R)
• M5: 2,262,817 km (0.113 R)
• M6: 2,875,121 km (0.113 R)
• M7: 3,365,204 km (0.088 R)
• M8: 3,779,740 km (0.045 R)
• M9: 4,306,773 km (0.119 R)
• M10: 5,546,640 km (0.105 R)
• M11: 5,989,300 km (0.112 R)
• M12: 6,455,597 km (0.091 R)
• M13: 7,810,954 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 249.7

Radius: 14.2

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.89 AU - 1.09 AU

Year: 668 Days

Day: 8.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 23,920,124 km

• M1: 176,675 km (0.089 R)
• M2: 632,350 km (0.078 R)
• M3: 1,120,338 km (0.119 R)
• M4: 1,732,493 km (0.042 R)
• M5: 2,389,527 km (0.105 R)
• M6: 3,220,842 km (0.066 R)
• M7: 4,065,621 km (0.059 R)
• M8: 4,741,505 km (0.042 R)
• M9: 5,540,058 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.3

Radius: 14.6

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 1.07 AU - 1.55 AU

Year: 1017 Days

Day: 9.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 23,920,124 km

• M1: 181,612 km (0.055 R)
• M2: 649,704 km (0.078 R)
• M3: 1,323,044 km (0.067 R)
• M4: 1,875,209 km (0.117 R)
• M5: 2,331,333 km (0.043 R)
• M6: 3,036,538 km (0.073 R)
• M7: 3,821,328 km (0.043 R)
• M8: 4,384,414 km (0.114 R)
• M9: 5,111,310 km (0.12 R)
• M10: 5,777,470 km (0.097 R)
• M11: 6,674,907 km (0.053 R)
• M12: 7,833,244 km (0.087 R)
• M13: 9,013,870 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53.5

Radius: 14.7

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.58 AU - 2.42 AU

Year: 1918 Days

Day: 7.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 23,920,124 km

• M1: 191,934 km (0.085 R)
• M2: 755,469 km (0.066 R)
• M3: 1,322,744 km (0.093 R)
• M4: 1,970,802 km (0.067 R)
• M5: 2,467,467 km (0.081 R)
• M6: 3,037,136 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.5

Radius: 14.3

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.63 AU - 2.51 AU

Year: 2020 Days

Day: 7.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 23,920,124 km

• M1: 178,171 km (0.109 R)
• M2: 885,619 km (0.109 R)
• M3: 1,441,824 km (0.113 R)
• M4: 2,086,442 km (0.079 R)
• M5: 2,642,946 km (0.07 R)
• M6: 3,232,960 km (0.06 R)
• M7: 3,764,032 km (0.111 R)
• M8: 5,069,872 km (0.045 R)
• M9: 5,839,852 km (0.066 R)
• M10: 6,369,578 km (0.108 R)
• M11: 7,467,926 km (0.044 R)
• M12: 8,883,271 km (0.1 R)
• M13: 9,724,011 km (0.062 R)
• M14: 14,518,324 km (0.031 R)
• M15: 15,781,678 km (0.11 R)
• M16: 16,763,788 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 584.9

Radius: 5.2

Gravity: 21.63 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 5.33 AU - 6.39 AU

Year: 9621 Days

Day: 16.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 23,920,124 km

• M1: 64,626 km (0.098 R)
• M2: 239,207 km (0.112 R)
• M3: 451,486 km (0.102 R)
• M4: 638,933 km (0.074 R)
• M5: 1,166,415 km (0.102 R)
• M6: 1,569,880 km (0.06 R)
• M7: 1,881,941 km (0.114 R)
• M8: 2,324,452 km (0.102 R)
• M9: 2,531,495 km (0.107 R)
• M10: 3,204,835 km (0.089 R)
• M11: 3,390,486 km (0.029 R)
• M12: 3,783,181 km (0.089 R)
• M13: 5,176,086 km (0.119 R)
• M14: 6,395,459 km (0.036 R)
• M15: 6,994,448 km (0.114 R)
• M16: 7,228,420 km (0.106 R)
• M17: 8,390,346 km (0.084 R)
• M18: 9,199,820 km (0.11 R)
• M19: 9,528,337 km (0.105 R)
• M20: 10,258,524 km (0.047 R)
• M21: 11,774,699 km (0.114 R)
• M22: 12,614,840 km (0.117 R)
• M23: 13,315,258 km (0.119 R)
• M24: 14,985,069 km (0.101 R)
• M25: 16,789,818 km (0.112 R)
• M26: 17,422,168 km (0.033 R)
• M27: 19,491,256 km (0.087 R)
• M28: 23,757,787 km (0.103 R)
• M29: 24,198,204 km (0.036 R)
• M30: 25,460,211 km (0.056 R)
• M31: 27,146,478 km (0.058 R)
• M32: 27,627,735 km (0.118 R)
• M33: 30,532,177 km (0.073 R)
• M34: 37,768,077 km (0.055 R)
• M35: 38,488,391 km (0.058 R)
• M36: 40,830,196 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 479.5

Radius: 6.9

Gravity: 10.07 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 6.27 AU - 8.21 AU

Year: 13213 Days

Day: 19.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 23,920,124 km

• M1: 85,869 km (0.089 R)
• M2: 425,756 km (0.092 R)
• M3: 1,467,106 km (0.06 R)
• M4: 2,114,416 km (0.111 R)
• M5: 4,624,669 km (0.103 R)
• M6: 15,267,360 km (0.1 R)
• M7: 17,334,803 km (0.074 R)
• M8: 26,774,429 km (0.065 R)
• M9: 28,294,193 km (0.117 R)
• M10: 35,188,710 km (0.117 R)
• M11: 38,893,950 km (0.059 R)
• M12: 40,184,531 km (0.105 R)
• M13: 42,579,144 km (0.056 R)
• M14: 45,775,303 km (0.105 R)
• M15: 48,978,792 km (0.1 R)
• M16: 49,576,884 km (0.112 R)
• M17: 50,331,306 km (0.078 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 31

Radius: 7.1

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 7.09 AU - 9.75 AU

Year: 16571 Days

Day: 20.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 23,920,124 km

• M1: 94,546 km (0.108 R)
• M2: 321,785 km (0.103 R)
• M3: 1,101,340 km (0.113 R)
• M4: 1,742,815 km (0.108 R)
• M5: 2,216,891 km (0.111 R)
• M6: 3,305,664 km (0.066 R)
• M7: 5,057,904 km (0.08 R)
• M8: 8,332,901 km (0.087 R)
• M9: 9,745,553 km (0.1 R)
• M10: 14,724,021 km (0.097 R)
• M11: 19,443,684 km (0.094 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 551 - 19,148 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit