🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.57 AU - 0.67 AU

Year: 320 Days

Day: 34.6 Hours

Environment

Temp: -126 °C

Axial Tilt: 4.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.3

Radius: 8.5

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.07 AU - 1.09 AU

Year: 736 Days

Day: 15 Hours

Environment

Temp: -170 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,724,001 km

• M1: 105,766 km (0.09 R)
• M2: 378,782 km (0.04 R)
• M3: 695,780 km (0.059 R)
• M4: 1,025,045 km (0.073 R)
• M5: 1,339,649 km (0.096 R)
• M6: 1,682,826 km (0.108 R)
• M7: 2,857,918 km (0.086 R)
• M8: 3,125,100 km (0.093 R)
• M9: 3,810,407 km (0.086 R)
• M10: 4,325,174 km (0.098 R)
• M11: 4,840,688 km (0.057 R)
• M12: 5,238,020 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.1

Radius: 12.1

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.41 AU - 1.81 AU

Year: 1340 Days

Day: 7 Hours

Environment

Temp: -174 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 72,724,001 km

• M1: 150,495 km (0.056 R)
• M2: 591,360 km (0.094 R)
• M3: 1,051,374 km (0.092 R)
• M4: 1,505,254 km (0.081 R)
• M5: 2,051,136 km (0.101 R)
• M6: 2,702,785 km (0.055 R)
• M7: 3,251,659 km (0.1 R)
• M8: 3,633,583 km (0.109 R)
• M9: 5,751,889 km (0.087 R)
• M10: 6,292,834 km (0.091 R)
• M11: 7,097,970 km (0.07 R)
• M12: 8,406,802 km (0.102 R)
• M13: 8,831,809 km (0.117 R)
• M14: 9,553,470 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.4

Radius: 8.7

Gravity: 9.6 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.4 AU - 2.08 AU

Year: 1506 Days

Day: 7.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 72,724,001 km

• M1: 108,159 km (0.063 R)
• M2: 467,793 km (0.117 R)
• M3: 1,061,098 km (0.071 R)
• M4: 1,470,547 km (0.091 R)
• M5: 1,752,838 km (0.059 R)
• M6: 2,049,341 km (0.107 R)
• M7: 2,623,498 km (0.034 R)
• M8: 2,927,182 km (0.053 R)
• M9: 3,285,468 km (0.075 R)
• M10: 3,556,689 km (0.109 R)
• M11: 3,912,583 km (0.102 R)
• M12: 4,735,969 km (0.056 R)
• M13: 6,824,356 km (0.03 R)
• M14: 7,109,489 km (0.101 R)
• M15: 7,402,701 km (0.067 R)
• M16: 7,815,442 km (0.091 R)
• M17: 8,185,547 km (0.116 R)
• M18: 10,214,842 km (0.055 R)
• M19: 10,971,657 km (0.091 R)
• M20: 11,363,753 km (0.094 R)
• M21: 12,635,485 km (0.106 R)
• M22: 13,834,063 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.1

Radius: 14.8

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.9 AU - 2.14 AU

Year: 1883 Days

Day: 8.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 47.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,724,001 km

• M1: 203,752 km (0.105 R)
• M2: 893,398 km (0.109 R)
• M3: 1,379,891 km (0.115 R)
• M4: 2,038,121 km (0.103 R)
• M5: 2,640,552 km (0.115 R)
• M6: 3,229,668 km (0.115 R)
• M7: 3,961,950 km (0.083 R)
• M8: 4,910,999 km (0.118 R)
• M9: 6,157,897 km (0.04 R)
• M10: 10,354,117 km (0.09 R)
• M11: 11,911,282 km (0.106 R)
• M12: 13,360,137 km (0.095 R)
• M13: 13,882,982 km (0.101 R)
• M14: 15,063,010 km (0.113 R)
• M15: 15,870,240 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 639.1

Radius: 14.4

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 3.78 AU - 5.04 AU

Year: 6075 Days

Day: 13.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 72,724,001 km

• M1: 179,218 km (0.103 R)
• M2: 646,861 km (0.12 R)
• M3: 1,305,241 km (0.106 R)
• M4: 1,804,150 km (0.101 R)
• M5: 2,602,255 km (0.078 R)
• M6: 3,306,263 km (0.086 R)
• M7: 3,783,181 km (0.062 R)
• M8: 4,232,273 km (0.066 R)
• M9: 5,296,363 km (0.058 R)
• M10: 7,764,429 km (0.1 R)
• M11: 8,416,376 km (0.054 R)
• M12: 9,188,152 km (0.105 R)
• M13: 9,830,375 km (0.084 R)
• M14: 10,320,308 km (0.091 R)
• M15: 10,779,873 km (0.084 R)
• M16: 11,349,242 km (0.102 R)
• M17: 12,190,431 km (0.117 R)
• M18: 19,634,571 km (0.076 R)
• M19: 21,509,182 km (0.092 R)
• M20: 23,343,102 km (0.116 R)
• M21: 23,897,063 km (0.044 R)
• M22: 26,800,010 km (0.08 R)
• M23: 27,670,819 km (0.101 R)
• M24: 29,377,282 km (0.101 R)
• M25: 30,868,025 km (0.09 R)
• M26: 32,115,970 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.2

Radius: 14.6

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 5 AU - 5.74 AU

Year: 8163 Days

Day: 14.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 72,724,001 km

• M1: 181,761 km (0.074 R)
• M2: 636,090 km (0.065 R)
• M3: 1,093,560 km (0.029 R)
• M4: 1,661,135 km (0.084 R)
• M5: 2,355,119 km (0.12 R)
• M6: 3,303,869 km (0.112 R)
• M7: 4,069,361 km (0.117 R)
• M8: 6,472,651 km (0.117 R)
• M9: 7,400,008 km (0.1 R)
• M10: 9,427,658 km (0.085 R)
• M11: 10,373,715 km (0.112 R)
• M12: 11,124,098 km (0.069 R)
• M13: 12,510,421 km (0.116 R)
• M14: 13,830,174 km (0.079 R)
• M15: 14,310,532 km (0.101 R)
• M16: 14,801,812 km (0.05 R)
• M17: 20,279,487 km (0.064 R)
• M18: 21,215,372 km (0.108 R)
• M19: 22,922,134 km (0.107 R)
• M20: 34,579,997 km (0.079 R)
• M21: 36,482,433 km (0.082 R)
• M22: 38,453,534 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.8

Radius: 15

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 4.78 AU - 6.84 AU

Year: 9187 Days

Day: 10.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 72,724,001 km

• M1: 250,277 km (0.091 R)
• M2: 918,830 km (0.106 R)
• M3: 1,489,546 km (0.117 R)
• M4: 2,096,315 km (0.084 R)
• M5: 3,320,175 km (0.12 R)
• M6: 4,889,606 km (0.112 R)
• M7: 5,575,363 km (0.042 R)
• M8: 8,321,980 km (0.104 R)
• M9: 9,488,993 km (0.093 R)
• M10: 11,763,329 km (0.118 R)
• M11: 12,258,648 km (0.093 R)
• M12: 12,882,920 km (0.094 R)
• M13: 13,528,285 km (0.106 R)
• M14: 15,075,875 km (0.105 R)
• M15: 16,669,840 km (0.072 R)
• M16: 17,793,320 km (0.098 R)
• M17: 19,649,082 km (0.12 R)
• M18: 20,426,542 km (0.112 R)
• M19: 23,309,891 km (0.116 R)
• M20: 26,174,840 km (0.082 R)
• M21: 26,926,270 km (0.089 R)
• M22: 27,885,791 km (0.089 R)
• M23: 30,281,601 km (0.116 R)
• M24: 33,137,574 km (0.08 R)
• M25: 33,906,357 km (0.075 R)
• M26: 36,983,885 km (0.09 R)
• M27: 39,014,377 km (0.079 R)
• M28: 40,741,634 km (0.097 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 793.9

Radius: 4.3

Gravity: 42.94 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 6.73 AU - 11.03 AU

Year: 17359 Days

Day: 17 Hours

Environment

Temp: -236 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 72,724,001 km

• M1: 72,555 km (0.041 R)
• M2: 391,946 km (0.103 R)
• M3: 679,474 km (0.073 R)
• M4: 816,804 km (0.112 R)
• M5: 1,598,004 km (0.095 R)
• M6: 1,789,490 km (0.119 R)
• M7: 1,957,339 km (0.085 R)
• M8: 2,260,573 km (0.116 R)
• M9: 2,884,546 km (0.113 R)
• M10: 4,136,232 km (0.111 R)
• M11: 5,632,061 km (0.107 R)
• M12: 8,761,050 km (0.051 R)
• M13: 9,693,344 km (0.074 R)
• M14: 11,369,737 km (0.12 R)
• M15: 12,078,233 km (0.056 R)
• M16: 13,300,148 km (0.114 R)
• M17: 13,511,530 km (0.11 R)
• M18: 16,957,218 km (0.097 R)
• M19: 20,102,812 km (0.042 R)
• M20: 22,602,293 km (0.063 R)
• M21: 24,766,376 km (0.064 R)
• M22: 25,086,516 km (0.081 R)
• M23: 26,839,952 km (0.102 R)
• M24: 29,740,655 km (0.059 R)
• M25: 30,711,396 km (0.112 R)
• M26: 34,274,817 km (0.076 R)
• M27: 34,805,441 km (0.07 R)
• M28: 38,246,042 km (0.086 R)
• M29: 39,975,244 km (0.115 R)
• M30: 41,007,619 km (0.055 R)
• M31: 42,818,651 km (0.116 R)
• M32: 42,971,988 km (0.109 R)
• M33: 44,055,227 km (0.045 R)
• M34: 44,211,407 km (0.098 R)
• M35: 45,474,462 km (0.031 R)
• M36: 48,904,142 km (0.111 R)
• M37: 53,561,872 km (0.063 R)
• M38: 54,276,052 km (0.11 R)
• M39: 65,154,809 km (0.061 R)
• M40: 66,172,973 km (0.057 R)
• M41: 67,408,801 km (0.087 R)
• M42: 69,291,340 km (0.108 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 153 - 17,151 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit