🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.57 AU - 0.57 AU

Year: 274 Days

Day: 33.1 Hours

Environment

Temp: -131 °C

Axial Tilt: 139.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,185,907 km

• M1: 121,922 km (0.109 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.82

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.53 AU - 0.77 AU

Year: 333 Days

Day: 20.9 Hours

Environment

Temp: -130 °C

Axial Tilt: 11.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.3

Radius: 9

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.81 AU - 0.91 AU

Year: 507 Days

Day: 13.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,185,907 km

• M1: 111,899 km (0.101 R)
• M2: 406,009 km (0.086 R)
• M3: 816,655 km (0.087 R)
• M4: 1,159,383 km (0.094 R)
• M5: 1,476,531 km (0.061 R)
• M6: 1,963,472 km (0.104 R)
• M7: 2,733,153 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163

Radius: 8.8

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.26 AU - 1.5 AU

Year: 1031 Days

Day: 10.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 40,185,907 km

• M1: 109,506 km (0.104 R)
• M2: 487,390 km (0.098 R)
• M3: 1,131,708 km (0.077 R)
• M4: 1,800,410 km (0.077 R)
• M5: 2,535,983 km (0.11 R)
• M6: 2,883,499 km (0.051 R)
• M7: 3,914,827 km (0.055 R)
• M8: 4,979,664 km (0.032 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.6

Radius: 8.6

Gravity: 12.14 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.61 AU - 1.65 AU

Year: 1323 Days

Day: 7.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,185,907 km

• M1: 106,962 km (0.103 R)
• M2: 521,349 km (0.088 R)
• M3: 831,016 km (0.057 R)
• M4: 1,338,303 km (0.076 R)
• M5: 1,629,570 km (0.119 R)
• M6: 1,952,701 km (0.079 R)
• M7: 2,967,723 km (0.098 R)
• M8: 4,098,832 km (0.111 R)
• M9: 4,546,130 km (0.116 R)
• M10: 5,150,655 km (0.084 R)
• M11: 5,627,274 km (0.104 R)
• M12: 6,204,272 km (0.11 R)
• M13: 7,129,835 km (0.05 R)
• M14: 8,732,028 km (0.091 R)
• M15: 9,378,590 km (0.099 R)
• M16: 10,289,940 km (0.098 R)
• M17: 11,366,446 km (0.037 R)
• M18: 11,876,575 km (0.045 R)
• M19: 12,708,788 km (0.045 R)
• M20: 13,338,146 km (0.114 R)

Asteroid Belt

Center: 2.27 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.4

Radius: 8.9

Gravity: 12.33 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.87 AU - 2.93 AU

Year: 3140 Days

Day: 11.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 40,185,907 km

• M1: 111,151 km (0.114 R)
• M2: 715,826 km (0.098 R)
• M3: 1,138,440 km (0.031 R)
• M4: 1,440,029 km (0.078 R)
• M5: 2,015,233 km (0.038 R)
• M6: 2,803,314 km (0.106 R)
• M7: 3,599,175 km (0.06 R)
• M8: 4,215,967 km (0.108 R)
• M9: 5,336,904 km (0.1 R)
• M10: 7,946,340 km (0.095 R)
• M11: 8,261,094 km (0.038 R)
• M12: 10,042,655 km (0.086 R)
• M13: 10,493,991 km (0.102 R)
• M14: 11,174,662 km (0.104 R)
• M15: 12,483,045 km (0.119 R)
• M16: 12,765,934 km (0.112 R)
• M17: 13,393,797 km (0.12 R)
• M18: 13,690,449 km (0.086 R)
• M19: 14,245,756 km (0.075 R)
• M20: 14,711,155 km (0.094 R)
• M21: 15,672,322 km (0.104 R)
• M22: 16,279,988 km (0.066 R)
• M23: 17,897,590 km (0.064 R)
• M24: 19,179,345 km (0.086 R)
• M25: 22,267,793 km (0.118 R)
• M26: 24,257,145 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.4

Radius: 11.7

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 5.66 AU - 6.4 AU

Year: 9415 Days

Day: 6.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 40,185,907 km

• M1: 164,558 km (0.05 R)
• M2: 595,549 km (0.109 R)
• M3: 1,664,426 km (0.032 R)
• M4: 2,290,942 km (0.104 R)
• M5: 2,884,995 km (0.088 R)
• M6: 3,745,781 km (0.101 R)
• M7: 4,276,106 km (0.052 R)
• M8: 4,827,374 km (0.076 R)
• M9: 5,582,843 km (0.063 R)
• M10: 6,591,581 km (0.087 R)
• M11: 7,877,375 km (0.093 R)
• M12: 9,144,768 km (0.096 R)
• M13: 9,688,257 km (0.111 R)
• M14: 10,543,808 km (0.097 R)
• M15: 14,658,796 km (0.102 R)
• M16: 17,309,222 km (0.096 R)
• M17: 19,219,886 km (0.098 R)
• M18: 20,112,686 km (0.079 R)
• M19: 20,723,195 km (0.113 R)
• M20: 24,996,607 km (0.111 R)
• M21: 26,603,289 km (0.102 R)
• M22: 30,318,851 km (0.079 R)
• M23: 32,769,713 km (0.12 R)
• M24: 33,615,090 km (0.119 R)
• M25: 34,475,128 km (0.091 R)
• M26: 38,761,706 km (0.11 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: 464 - 11,072 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit