🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.54 AU - 0.56 AU

Year: 268 Days

Day: 13 Hours

Environment

Temp: -119 °C

Axial Tilt: 8.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 397.7

Radius: 8.9

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.58 AU - 0.88 AU

Year: 409 Days

Day: 6.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,023,412 km

• M1: 111,002 km (0.107 R)
• M2: 533,316 km (0.09 R)
• M3: 820,844 km (0.102 R)
• M4: 1,142,778 km (0.043 R)
• M5: 1,763,460 km (0.097 R)
• M6: 2,051,436 km (0.119 R)
• M7: 2,810,495 km (0.077 R)
• M8: 3,745,332 km (0.05 R)
• M9: 4,099,281 km (0.111 R)
• M10: 4,382,470 km (0.035 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614

Radius: 12.4

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.69 AU - 1.15 AU

Year: 579 Days

Day: 9.6 Hours

Environment

Temp: -150 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,023,412 km

• M1: 154,235 km (0.083 R)
• M2: 627,114 km (0.106 R)
• M3: 1,014,722 km (0.07 R)
• M4: 1,926,821 km (0.03 R)
• M5: 2,394,912 km (0.082 R)
• M6: 2,795,535 km (0.066 R)
• M7: 3,265,273 km (0.079 R)
• M8: 3,951,029 km (0.063 R)
• M9: 4,365,715 km (0.063 R)
• M10: 5,788,390 km (0.068 R)
• M11: 6,596,518 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.2

Radius: 9.7

Gravity: 8.88 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 2 AU - 2.64 AU

Year: 2318 Days

Day: 13 Hours

Environment

Temp: -192 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,023,412 km

• M1: 121,025 km (0.081 R)
• M2: 755,768 km (0.044 R)
• M3: 1,069,924 km (0.038 R)
• M4: 1,473,389 km (0.114 R)
• M5: 2,002,068 km (0.108 R)
• M6: 2,492,301 km (0.106 R)
• M7: 3,094,282 km (0.084 R)
• M8: 3,492,961 km (0.097 R)
• M9: 4,479,409 km (0.107 R)
• M10: 5,948,161 km (0.088 R)
• M11: 6,539,372 km (0.11 R)
• M12: 7,198,949 km (0.026 R)
• M13: 8,319,586 km (0.04 R)
• M14: 9,303,791 km (0.051 R)
• M15: 10,100,848 km (0.086 R)
• M16: 10,708,664 km (0.097 R)
• M17: 11,180,346 km (0.106 R)
• M18: 11,502,431 km (0.099 R)
• M19: 11,913,825 km (0.113 R)
• M20: 12,766,084 km (0.096 R)
• M21: 14,119,795 km (0.052 R)
• M22: 15,716,902 km (0.069 R)
• M23: 17,057,448 km (0.063 R)
• M24: 17,538,705 km (0.114 R)

Asteroid Belt

Center: 2.69 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 776.1

Radius: 11.2

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.84 AU - 3.28 AU

Year: 3511 Days

Day: 11.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 72,023,412 km

• M1: 139,276 km (0.105 R)
• M2: 530,324 km (0.06 R)
• M3: 897,737 km (0.084 R)
• M4: 2,626,041 km (0.099 R)
• M5: 3,718,105 km (0.081 R)
• M6: 4,276,554 km (0.057 R)
• M7: 4,890,354 km (0.089 R)
• M8: 6,868,936 km (0.1 R)
• M9: 7,314,588 km (0.114 R)
• M10: 7,915,971 km (0.084 R)
• M11: 8,406,204 km (0.099 R)
• M12: 8,916,631 km (0.054 R)
• M13: 9,564,241 km (0.054 R)
• M14: 10,202,126 km (0.113 R)
• M15: 11,651,729 km (0.12 R)
• M16: 12,519,397 km (0.05 R)
• M17: 19,398,057 km (0.032 R)
• M18: 22,226,653 km (0.116 R)
• M19: 24,575,938 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.1

Radius: 12.7

Gravity: 3.84 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 3.49 AU - 3.53 AU

Year: 4314 Days

Day: 11.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,023,412 km

• M1: 188,344 km (0.064 R)
• M2: 636,389 km (0.11 R)
• M3: 1,578,407 km (0.047 R)
• M4: 2,522,818 km (0.044 R)
• M5: 3,121,509 km (0.078 R)
• M6: 3,856,035 km (0.113 R)
• M7: 4,605,670 km (0.105 R)
• M8: 5,003,151 km (0.102 R)
• M9: 5,504,902 km (0.102 R)
• M10: 6,456,495 km (0.104 R)
• M11: 9,491,985 km (0.115 R)
• M12: 10,222,172 km (0.116 R)
• M13: 12,165,149 km (0.077 R)
• M14: 16,596,687 km (0.045 R)
• M15: 19,912,225 km (0.038 R)
• M16: 25,292,961 km (0.068 R)
• M17: 25,910,351 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.4

Radius: 14.5

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 3.87 AU - 4.29 AU

Year: 5406 Days

Day: 11.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,023,412 km

• M1: 180,565 km (0.096 R)
• M2: 641,476 km (0.117 R)
• M3: 1,248,245 km (0.11 R)
• M4: 3,617,576 km (0.055 R)
• M5: 4,506,337 km (0.091 R)
• M6: 5,265,247 km (0.07 R)
• M7: 7,071,641 km (0.112 R)
• M8: 7,885,603 km (0.116 R)
• M9: 9,904,875 km (0.105 R)
• M10: 13,678,332 km (0.107 R)
• M11: 16,341,772 km (0.074 R)
• M12: 16,866,262 km (0.1 R)
• M13: 19,528,805 km (0.119 R)
• M14: 20,926,199 km (0.114 R)
• M15: 22,819,510 km (0.096 R)
• M16: 25,909,603 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.3

Radius: 13.4

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 4.08 AU - 4.78 AU

Year: 6117 Days

Day: 11.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 72,023,412 km

• M1: 166,652 km (0.067 R)
• M2: 960,119 km (0.109 R)
• M3: 1,490,593 km (0.043 R)
• M4: 2,598,216 km (0.076 R)
• M5: 3,920,811 km (0.103 R)
• M6: 4,566,774 km (0.101 R)
• M7: 5,252,830 km (0.036 R)
• M8: 5,747,849 km (0.054 R)
• M9: 8,088,009 km (0.065 R)
• M10: 9,094,503 km (0.082 R)
• M11: 10,661,391 km (0.076 R)
• M12: 11,356,423 km (0.043 R)
• M13: 12,028,566 km (0.084 R)
• M14: 15,923,048 km (0.106 R)
• M15: 16,503,338 km (0.117 R)
• M16: 23,027,002 km (0.105 R)
• M17: 24,699,057 km (0.112 R)
• M18: 26,992,093 km (0.082 R)
• M19: 28,660,409 km (0.098 R)
• M20: 29,135,831 km (0.113 R)
• M21: 30,102,532 km (0.097 R)
• M22: 31,090,327 km (0.12 R)
• M23: 32,099,814 km (0.075 R)
• M24: 35,586,192 km (0.04 R)
• M25: 36,579,223 km (0.088 R)
• M26: 38,620,635 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 105.8

Radius: 7.5

Gravity: 1.88 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 7.08 AU - 9.92 AU

Year: 16257 Days

Day: 15 Hours

Environment

Temp: -217 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,023,412 km

• M1: 93,648 km (0.09 R)
• M2: 541,843 km (0.026 R)
• M3: 880,084 km (0.105 R)
• M4: 1,139,637 km (0.103 R)
• M5: 2,245,913 km (0.115 R)
• M6: 3,052,844 km (0.068 R)
• M7: 3,324,962 km (0.061 R)
• M8: 5,584,937 km (0.114 R)
• M9: 8,918,726 km (0.076 R)
• M10: 9,302,893 km (0.08 R)
• M11: 10,150,515 km (0.109 R)
• M12: 12,153,331 km (0.094 R)
• M13: 13,219,964 km (0.062 R)
• M14: 13,945,962 km (0.085 R)
• M15: 14,816,323 km (0.057 R)
• M16: 15,538,432 km (0.093 R)
• M17: 22,258,966 km (0.096 R)
• M18: 22,728,853 km (0.028 R)
• M19: 28,526,818 km (0.087 R)
• M20: 29,642,818 km (0.087 R)
• M21: 30,981,569 km (0.096 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 792.4

Radius: 4.5

Gravity: 39.13 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 8.41 AU - 9.19 AU

Year: 17125 Days

Day: 15.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 72,023,412 km

• M1: 56,099 km (0.099 R)
• M2: 448,345 km (0.078 R)
• M3: 1,380,190 km (0.093 R)
• M4: 3,141,555 km (0.101 R)
• M5: 3,441,798 km (0.104 R)
• M6: 3,701,351 km (0.081 R)
• M7: 3,942,951 km (0.078 R)
• M8: 4,099,281 km (0.112 R)
• M9: 5,698,482 km (0.113 R)
• M10: 5,939,035 km (0.114 R)
• M11: 6,701,835 km (0.105 R)
• M12: 8,837,644 km (0.07 R)
• M13: 9,106,022 km (0.117 R)
• M14: 9,658,787 km (0.065 R)
• M15: 10,116,855 km (0.051 R)
• M16: 10,410,516 km (0.114 R)
• M17: 10,589,285 km (0.041 R)
• M18: 13,105,222 km (0.089 R)
• M19: 21,507,835 km (0.074 R)
• M20: 24,319,976 km (0.05 R)
• M21: 24,529,862 km (0.086 R)
• M22: 25,922,917 km (0.094 R)
• M23: 26,361,987 km (0.086 R)
• M24: 29,814,108 km (0.101 R)
• M25: 30,660,832 km (0.099 R)
• M26: 33,555,700 km (0.111 R)
• M27: 33,815,701 km (0.112 R)
• M28: 34,471,688 km (0.04 R)
• M29: 35,002,461 km (0.118 R)
• M30: 41,954,124 km (0.076 R)
• M31: 44,097,114 km (0.096 R)
• M32: 45,037,486 km (0.107 R)
• M33: 48,103,495 km (0.097 R)
• M34: 48,932,716 km (0.098 R)
• M35: 59,640,333 km (0.113 R)
• M36: 60,405,077 km (0.116 R)
• M37: 63,133,144 km (0.034 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 373 - 12,456 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit