🌌 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: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.08

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.47 AU - 0.75 AU

Year: 308 Days

Day: 17.5 Hours

Environment

Temp: -121 °C

Axial Tilt: 25.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.51 AU - 0.71 AU

Year: 308 Days

Day: 37.6 Hours

Environment

Temp: -122 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,556,016 km

• M1: 33,959 km (0.102 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.2

Radius: 0.53

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.66 AU - 0.68 AU

Year: 354 Days

Day: 44.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 1.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 67,556,016 km

• M1: 312,211 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.4

Radius: 13.1

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.54 AU - 0.84 AU

Year: 370 Days

Day: 5.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 67,556,016 km

• M1: 162,912 km (0.078 R)
• M2: 666,010 km (0.1 R)
• M3: 1,129,913 km (0.113 R)
• M4: 1,624,334 km (0.104 R)
• M5: 2,541,668 km (0.047 R)
• M6: 3,388,841 km (0.087 R)
• M7: 4,364,967 km (0.074 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 764.9

Radius: 9

Gravity: 9.44 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.97 AU - 2.45 AU

Year: 2121 Days

Day: 11.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,556,016 km

• M1: 112,049 km (0.104 R)
• M2: 493,673 km (0.108 R)
• M3: 973,583 km (0.087 R)
• M4: 1,423,424 km (0.086 R)
• M5: 1,713,494 km (0.09 R)
• M6: 2,684,384 km (0.103 R)
• M7: 3,281,878 km (0.107 R)
• M8: 4,023,285 km (0.114 R)
• M9: 4,465,048 km (0.096 R)
• M10: 5,785,997 km (0.07 R)
• M11: 6,590,385 km (0.078 R)
• M12: 6,921,145 km (0.082 R)
• M13: 8,420,565 km (0.073 R)
• M14: 9,144,619 km (0.092 R)
• M15: 10,197,937 km (0.083 R)
• M16: 11,886,448 km (0.088 R)
• M17: 14,710,108 km (0.105 R)
• M18: 17,062,684 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.2

Radius: 9.7

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 4.15 AU - 4.75 AU

Year: 6061 Days

Day: 8.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,556,016 km

• M1: 121,773 km (0.062 R)
• M2: 620,233 km (0.084 R)
• M3: 1,059,751 km (0.042 R)
• M4: 1,690,306 km (0.098 R)
• M5: 2,076,718 km (0.11 R)
• M6: 2,634,867 km (0.038 R)
• M7: 3,252,108 km (0.086 R)
• M8: 4,531,469 km (0.092 R)
• M9: 6,089,980 km (0.072 R)
• M10: 7,532,103 km (0.079 R)
• M11: 10,860,656 km (0.072 R)
• M12: 21,572,013 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 885.5

Radius: 4.7

Gravity: 40.09 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 5.91 AU - 7.69 AU

Year: 11449 Days

Day: 16 Hours

Environment

Temp: -229 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 67,556,016 km

• M1: 97,388 km (0.102 R)
• M2: 437,723 km (0.099 R)
• M3: 961,166 km (0.079 R)
• M4: 1,108,819 km (0.076 R)
• M5: 1,338,751 km (0.084 R)
• M6: 1,509,143 km (0.107 R)
• M7: 1,825,842 km (0.067 R)
• M8: 1,982,172 km (0.117 R)
• M9: 2,402,691 km (0.09 R)
• M10: 2,655,961 km (0.081 R)
• M11: 3,020,979 km (0.077 R)
• M12: 5,260,609 km (0.068 R)
• M13: 5,798,264 km (0.026 R)
• M14: 6,215,343 km (0.113 R)
• M15: 7,410,630 km (0.114 R)
• M16: 8,413,983 km (0.111 R)
• M17: 9,556,312 km (0.118 R)
• M18: 11,605,055 km (0.108 R)
• M19: 12,513,114 km (0.116 R)
• M20: 12,825,923 km (0.114 R)
• M21: 13,208,295 km (0.093 R)
• M22: 15,881,310 km (0.058 R)
• M23: 16,771,118 km (0.095 R)
• M24: 17,074,951 km (0.063 R)
• M25: 25,217,563 km (0.051 R)
• M26: 26,222,412 km (0.078 R)
• M27: 27,991,557 km (0.081 R)
• M28: 30,735,481 km (0.037 R)
• M29: 31,997,489 km (0.115 R)
• M30: 32,936,814 km (0.041 R)
• M31: 33,533,111 km (0.076 R)
• M32: 35,117,352 km (0.096 R)
• M33: 35,365,385 km (0.072 R)
• M34: 35,739,679 km (0.032 R)
• M35: 36,750,662 km (0.105 R)
• M36: 49,003,775 km (0.12 R)
• M37: 51,040,849 km (0.114 R)
• M38: 53,788,662 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 819.2

Radius: 3.3

Gravity: 75.22 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 7.43 AU - 9.08 AU

Year: 15300 Days

Day: 19.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 67,556,016 km

• M1: 40,990 km (0.092 R)
• M2: 230,231 km (0.059 R)
• M3: 693,536 km (0.099 R)
• M4: 810,072 km (0.07 R)
• M5: 1,009,786 km (0.082 R)
• M6: 2,401,794 km (0.079 R)
• M7: 4,076,841 km (0.092 R)
• M8: 4,329,662 km (0.118 R)
• M9: 4,797,155 km (0.112 R)
• M10: 5,007,490 km (0.116 R)
• M11: 5,260,609 km (0.107 R)
• M12: 5,371,611 km (0.102 R)
• M13: 5,522,106 km (0.048 R)
• M14: 6,111,671 km (0.07 R)
• M15: 7,005,967 km (0.095 R)
• M16: 7,322,517 km (0.101 R)
• M17: 9,262,951 km (0.102 R)
• M18: 13,350,712 km (0.099 R)
• M19: 13,907,216 km (0.078 R)
• M20: 14,406,574 km (0.047 R)
• M21: 14,697,243 km (0.117 R)
• M22: 17,989,742 km (0.118 R)
• M23: 18,582,300 km (0.075 R)
• M24: 19,806,309 km (0.116 R)
• M25: 20,712,872 km (0.08 R)
• M26: 21,932,245 km (0.077 R)
• M27: 23,000,822 km (0.099 R)
• M28: 26,305,439 km (0.078 R)
• M29: 29,678,422 km (0.111 R)
• M30: 30,148,908 km (0.113 R)
• M31: 31,225,564 km (0.043 R)
• M32: 31,589,984 km (0.12 R)
• M33: 32,451,518 km (0.094 R)
• M34: 35,788,598 km (0.104 R)
• M35: 38,924,917 km (0.119 R)
• M36: 42,091,754 km (0.102 R)
• M37: 50,084,320 km (0.101 R)
• M38: 57,380,058 km (0.066 R)
• M39: 58,660,915 km (0.118 R)
• M40: 65,352,428 km (0.102 R)
• M41: 66,749,074 km (0.037 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: 330 - 15,379 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit