🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.15 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.28 AU - 2.32 AU

Year: 1307 Days

Day: 36.5 Hours

Environment

Temp: -90 °C

Axial Tilt: 15.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.4

Radius: 13.5

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.94 AU - 5.1 AU

Year: 3601 Days

Day: 7.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 24,387,556 km

• M1: 169,644 km (0.102 R)
• M2: 615,894 km (0.026 R)
• M3: 1,204,263 km (0.065 R)
• M4: 2,406,731 km (0.119 R)
• M5: 4,192,780 km (0.029 R)
• M6: 5,252,680 km (0.097 R)
• M7: 5,703,269 km (0.108 R)
• M8: 6,289,244 km (0.087 R)
• M9: 7,182,942 km (0.058 R)
• M10: 14,612,570 km (0.081 R)
• M11: 15,407,384 km (0.109 R)
• M12: 16,441,404 km (0.087 R)
• M13: 17,631,755 km (0.118 R)
• M14: 19,053,234 km (0.115 R)
• M15: 19,941,995 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 7.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.5

Radius: 11.7

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 6.85 AU - 8.25 AU

Year: 7774 Days

Day: 14.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 24,387,556 km

• M1: 145,559 km (0.089 R)
• M2: 807,679 km (0.097 R)
• M3: 1,723,367 km (0.084 R)
• M4: 2,115,164 km (0.091 R)
• M5: 2,583,705 km (0.098 R)
• M6: 3,045,214 km (0.096 R)
• M7: 4,421,515 km (0.061 R)
• M8: 6,519,326 km (0.112 R)
• M9: 7,346,901 km (0.081 R)
• M10: 7,732,564 km (0.118 R)
• M11: 13,744,903 km (0.086 R)
• M12: 14,991,951 km (0.114 R)
• M13: 15,386,141 km (0.035 R)
• M14: 15,787,213 km (0.036 R)
• M15: 18,598,905 km (0.048 R)
• M16: 19,450,416 km (0.098 R)
• M17: 21,090,607 km (0.12 R)
• M18: 24,256,846 km (0.106 R)
• M19: 25,912,894 km (0.076 R)
• M20: 26,645,176 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446

Radius: 13.3

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 7.32 AU - 8.76 AU

Year: 8543 Days

Day: 6.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 24,387,556 km

• M1: 165,455 km (0.116 R)
• M2: 642,523 km (0.044 R)
• M3: 1,408,614 km (0.05 R)
• M4: 2,192,656 km (0.109 R)
• M5: 3,673,226 km (0.091 R)
• M6: 5,192,841 km (0.081 R)
• M7: 5,804,098 km (0.114 R)
• M8: 13,493,728 km (0.116 R)
• M9: 21,075,647 km (0.104 R)
• M10: 22,237,125 km (0.077 R)
• M11: 24,100,217 km (0.118 R)
• M12: 25,284,135 km (0.101 R)
• M13: 32,701,945 km (0.103 R)
• M14: 36,298,427 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.7

Radius: 11.8

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 9.26 AU - 9.42 AU

Year: 10697 Days

Day: 5.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 24,387,556 km

• M1: 149,747 km (0.06 R)
• M2: 925,861 km (0.119 R)
• M3: 1,336,807 km (0.056 R)
• M4: 1,954,197 km (0.104 R)
• M5: 2,426,777 km (0.111 R)
• M6: 2,952,613 km (0.091 R)
• M7: 3,528,266 km (0.082 R)
• M8: 3,980,351 km (0.115 R)
• M9: 4,937,179 km (0.093 R)
• M10: 10,611,725 km (0.117 R)
• M11: 11,906,794 km (0.057 R)
• M12: 12,622,919 km (0.056 R)
• M13: 12,991,677 km (0.109 R)
• M14: 15,637,017 km (0.112 R)
• M15: 16,642,314 km (0.108 R)
• M16: 18,622,841 km (0.096 R)
• M17: 21,705,454 km (0.03 R)
• M18: 25,404,411 km (0.114 R)
• M19: 26,391,009 km (0.077 R)
• M20: 27,814,732 km (0.086 R)
• M21: 32,050,596 km (0.065 R)
• M22: 33,670,591 km (0.095 R)
• M23: 39,117,001 km (0.061 R)
• M24: 40,166,729 km (0.108 R)
• M25: 40,832,140 km (0.102 R)
• M26: 45,123,655 km (0.102 R)
• M27: 46,132,692 km (0.078 R)
• M28: 46,569,817 km (0.101 R)
• M29: 49,554,295 km (0.072 R)
• M30: 50,628,258 km (0.116 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 676.6

Radius: 4.6

Gravity: 31.98 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 12.63 AU - 15.31 AU

Year: 19567 Days

Day: 22.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 24,387,556 km

• M1: 57,146 km (0.109 R)
• M2: 244,892 km (0.054 R)
• M3: 492,327 km (0.037 R)
• M4: 738,415 km (0.089 R)
• M5: 1,154,596 km (0.107 R)
• M6: 1,526,048 km (0.047 R)
• M7: 1,858,454 km (0.034 R)
• M8: 2,738,838 km (0.107 R)
• M9: 2,990,162 km (0.103 R)
• M10: 3,715,712 km (0.12 R)
• M11: 4,151,790 km (0.118 R)
• M12: 4,415,980 km (0.1 R)
• M13: 6,157,299 km (0.115 R)
• M14: 7,132,677 km (0.1 R)
• M15: 7,463,587 km (0.088 R)
• M16: 8,517,804 km (0.082 R)
• M17: 12,337,336 km (0.06 R)
• M18: 13,232,231 km (0.057 R)
• M19: 14,095,859 km (0.115 R)
• M20: 14,391,914 km (0.033 R)
• M21: 18,101,043 km (0.099 R)
• M22: 21,219,261 km (0.08 R)
• M23: 24,892,188 km (0.1 R)
• M24: 27,793,639 km (0.09 R)
• M25: 30,788,588 km (0.105 R)
• M26: 32,685,040 km (0.115 R)
• M27: 33,859,533 km (0.113 R)
• M28: 35,742,073 km (0.113 R)
• M29: 37,551,459 km (0.085 R)
• M30: 53,734,059 km (0.056 R)
• M31: 57,785,768 km (0.107 R)
• M32: 59,885,972 km (0.117 R)
• M33: 72,243,056 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 10

Radius: 5.9

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 17.83 AU - 19.35 AU

Year: 30036 Days

Day: 17.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 24,387,556 km

• M1: 73,453 km (0.091 R)
• M2: 397,033 km (0.116 R)
• M3: 1,275,172 km (0.114 R)
• M4: 2,728,815 km (0.118 R)
• M5: 3,551,603 km (0.064 R)
• M6: 6,750,604 km (0.104 R)
• M7: 8,702,407 km (0.107 R)
• M8: 9,073,111 km (0.117 R)
• M9: 9,886,175 km (0.069 R)
• M10: 13,975,882 km (0.091 R)
• M11: 16,869,853 km (0.117 R)
• M12: 18,275,325 km (0.119 R)
• M13: 23,168,521 km (0.05 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 486 - 20,126 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit