🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264

Radius: 9.7

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.45 AU - 0.61 AU

Year: 257 Days

Day: 10.2 Hours

Environment

Temp: -135 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 76,353,341 km

• M1: 121,773 km (0.041 R)
• M2: 833,410 km (0.108 R)
• M3: 1,427,762 km (0.115 R)
• M4: 1,851,124 km (0.087 R)
• M5: 2,185,774 km (0.101 R)
• M6: 3,013,948 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414

Radius: 14.1

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.51 AU - 0.65 AU

Year: 295 Days

Day: 5.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 76,353,341 km

• M1: 175,478 km (0.092 R)
• M2: 806,183 km (0.113 R)
• M3: 1,280,259 km (0.091 R)
• M4: 1,820,905 km (0.071 R)
• M5: 2,883,349 km (0.117 R)
• M6: 3,522,282 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 612

Radius: 11.2

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.56 AU - 0.82 AU

Year: 382 Days

Day: 14.9 Hours

Environment

Temp: -165 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,353,341 km

• M1: 139,276 km (0.079 R)
• M2: 539,001 km (0.083 R)
• M3: 964,757 km (0.09 R)
• M4: 1,432,549 km (0.098 R)
• M5: 1,888,224 km (0.088 R)
• M6: 2,615,270 km (0.109 R)
• M7: 3,002,429 km (0.093 R)
• M8: 3,371,188 km (0.108 R)
• M9: 3,770,465 km (0.061 R)
• M10: 4,415,082 km (0.106 R)
• M11: 4,764,243 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.3

Radius: 14.9

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.62 AU - 0.82 AU

Year: 407 Days

Day: 10.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,353,341 km

• M1: 185,501 km (0.081 R)
• M2: 719,267 km (0.079 R)
• M3: 1,256,323 km (0.083 R)
• M4: 1,965,716 km (0.052 R)
• M5: 2,530,598 km (0.104 R)
• M6: 3,297,436 km (0.089 R)
• M7: 4,055,449 km (0.042 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 99.4

Radius: 14.6

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.06 AU - 1.76 AU

Year: 1116 Days

Day: 6.4 Hours

Environment

Temp: -186 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 76,353,341 km

• M1: 181,612 km (0.118 R)
• M2: 977,173 km (0.084 R)
• M3: 2,908,482 km (0.08 R)
• M4: 4,836,798 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.6

Radius: 12.9

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 2.74 AU - 3.14 AU

Year: 3362 Days

Day: 10.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,353,341 km

• M1: 160,369 km (0.114 R)
• M2: 605,871 km (0.039 R)
• M3: 1,036,264 km (0.119 R)
• M4: 1,442,423 km (0.102 R)
• M5: 2,083,150 km (0.115 R)
• M6: 2,718,193 km (0.108 R)
• M7: 4,553,460 km (0.072 R)
• M8: 5,302,347 km (0.107 R)
• M9: 5,758,770 km (0.103 R)
• M10: 6,464,573 km (0.099 R)
• M11: 7,918,963 km (0.12 R)
• M12: 8,348,010 km (0.102 R)
• M13: 9,181,270 km (0.074 R)
• M14: 11,176,457 km (0.102 R)
• M15: 12,807,074 km (0.095 R)
• M16: 14,058,460 km (0.101 R)
• M17: 15,288,454 km (0.066 R)
• M18: 18,074,864 km (0.115 R)
• M19: 18,996,237 km (0.091 R)
• M20: 19,647,736 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 309.8

Radius: 8

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 6.23 AU - 6.69 AU

Year: 10949 Days

Day: 18.8 Hours

Environment

Temp: -221 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,353,341 km

• M1: 100,530 km (0.102 R)
• M2: 531,820 km (0.099 R)
• M3: 792,719 km (0.117 R)
• M4: 1,631,814 km (0.088 R)
• M5: 3,092,338 km (0.069 R)
• M6: 3,796,046 km (0.106 R)
• M7: 7,319,375 km (0.111 R)
• M8: 8,861,879 km (0.039 R)
• M9: 9,572,020 km (0.119 R)
• M10: 11,206,227 km (0.093 R)
• M11: 14,711,604 km (0.066 R)
• M12: 16,350,150 km (0.069 R)
• M13: 30,457,378 km (0.084 R)
• M14: 31,458,188 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 916.9

Radius: 4

Gravity: 57.31 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 8.36 AU - 9.42 AU

Year: 17676 Days

Day: 22.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 76,353,341 km

• M1: 51,013 km (0.077 R)
• M2: 365,916 km (0.103 R)
• M3: 562,488 km (0.106 R)
• M4: 724,353 km (0.078 R)
• M5: 882,777 km (0.098 R)
• M6: 1,051,374 km (0.077 R)
• M7: 1,241,214 km (0.086 R)
• M8: 1,602,792 km (0.078 R)
• M9: 3,003,476 km (0.074 R)
• M10: 3,802,628 km (0.063 R)
• M11: 4,251,272 km (0.103 R)
• M12: 4,698,570 km (0.034 R)
• M13: 4,915,337 km (0.106 R)
• M14: 6,271,891 km (0.089 R)
• M15: 6,759,281 km (0.094 R)
• M16: 12,680,963 km (0.112 R)
• M17: 12,820,089 km (0.055 R)
• M18: 14,117,850 km (0.115 R)
• M19: 18,354,163 km (0.114 R)
• M20: 19,624,548 km (0.115 R)
• M21: 23,890,780 km (0.082 R)
• M22: 25,292,811 km (0.116 R)
• M23: 25,735,023 km (0.103 R)
• M24: 34,062,388 km (0.097 R)
• M25: 34,196,577 km (0.063 R)
• M26: 40,761,530 km (0.078 R)
• M27: 44,819,372 km (0.057 R)
• M28: 45,629,445 km (0.103 R)
• M29: 49,309,852 km (0.093 R)
• M30: 50,870,756 km (0.049 R)
• M31: 65,386,686 km (0.045 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 486.1

Radius: 5

Gravity: 19.44 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 10.74 AU - 10.98 AU

Year: 23866 Days

Day: 23.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 76,353,341 km

• M1: 62,532 km (0.08 R)
• M2: 319,691 km (0.061 R)
• M3: 537,505 km (0.036 R)
• M4: 799,451 km (0.03 R)
• M5: 966,402 km (0.062 R)
• M6: 2,248,157 km (0.109 R)
• M7: 3,446,585 km (0.119 R)
• M8: 3,651,385 km (0.086 R)
• M9: 6,043,604 km (0.116 R)
• M10: 6,472,801 km (0.116 R)
• M11: 6,921,893 km (0.088 R)
• M12: 9,713,539 km (0.078 R)
• M13: 11,038,827 km (0.105 R)
• M14: 15,651,228 km (0.071 R)
• M15: 15,810,550 km (0.052 R)
• M16: 17,124,618 km (0.099 R)
• M17: 22,700,878 km (0.043 R)
• M18: 24,691,129 km (0.074 R)
• M19: 27,483,223 km (0.07 R)
• M20: 30,354,754 km (0.119 R)
• M21: 31,354,667 km (0.042 R)
• M22: 31,990,757 km (0.119 R)
• M23: 32,895,525 km (0.099 R)
• M24: 37,819,688 km (0.109 R)
• M25: 41,058,632 km (0.109 R)
• M26: 44,159,197 km (0.105 R)
• M27: 44,958,050 km (0.066 R)
• M28: 47,746,105 km (0.11 R)
• M29: 49,097,273 km (0.053 R)
• M30: 53,123,101 km (0.088 R)
• M31: 58,314,447 km (0.099 R)
• M32: 62,023,277 km (0.036 R)
• M33: 63,630,856 km (0.116 R)
• M34: 64,444,968 km (0.068 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 399 - 16,377 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit