🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.52 AU - 0.74 AU

Year: 328 Days

Day: 41.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 4.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.3

Radius: 11.6

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.59 AU - 0.85 AU

Year: 401 Days

Day: 7.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,033,164 km

• M1: 144,212 km (0.072 R)
• M2: 562,787 km (0.11 R)
• M3: 1,007,542 km (0.105 R)
• M4: 1,516,174 km (0.051 R)
• M5: 2,081,804 km (0.074 R)
• M6: 3,456,160 km (0.091 R)
• M7: 3,961,651 km (0.048 R)
• M8: 4,330,410 km (0.113 R)
• M9: 6,024,755 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.9

Radius: 8.5

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.02 AU - 1.1 AU

Year: 716 Days

Day: 14.9 Hours

Environment

Temp: -169 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,033,164 km

• M1: 105,766 km (0.034 R)
• M2: 413,937 km (0.055 R)
• M3: 993,629 km (0.068 R)
• M4: 1,389,016 km (0.086 R)
• M5: 1,931,009 km (0.041 R)
• M6: 2,326,546 km (0.116 R)
• M7: 2,833,084 km (0.114 R)
• M8: 3,259,738 km (0.083 R)
• M9: 3,556,390 km (0.098 R)
• M10: 3,882,962 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 292.9

Radius: 8.1

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.1 AU - 1.1 AU

Year: 757 Days

Day: 11 Hours

Environment

Temp: -172 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,033,164 km

• M1: 100,829 km (0.053 R)
• M2: 412,591 km (0.08 R)
• M3: 719,865 km (0.095 R)
• M4: 1,069,326 km (0.081 R)
• M5: 1,454,091 km (0.119 R)
• M6: 1,888,075 km (0.109 R)
• M7: 3,084,409 km (0.097 R)
• M8: 3,406,344 km (0.119 R)
• M9: 3,763,882 km (0.09 R)
• M10: 4,231,525 km (0.111 R)
• M11: 5,536,767 km (0.106 R)
• M12: 5,869,921 km (0.074 R)
• M13: 6,385,136 km (0.08 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.4

Radius: 10.6

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.78 AU - 1.88 AU

Year: 1624 Days

Day: 5.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 52.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,033,164 km

• M1: 150,346 km (0.047 R)
• M2: 485,744 km (0.099 R)
• M3: 915,838 km (0.097 R)
• M4: 1,574,817 km (0.106 R)
• M5: 2,326,396 km (0.038 R)
• M6: 2,843,407 km (0.048 R)
• M7: 3,229,519 km (0.117 R)
• M8: 3,826,115 km (0.11 R)
• M9: 4,211,479 km (0.057 R)
• M10: 4,866,868 km (0.119 R)
• M11: 5,976,136 km (0.06 R)
• M12: 7,296,636 km (0.075 R)
• M13: 9,750,789 km (0.1 R)
• M14: 10,441,333 km (0.073 R)
• M15: 11,097,170 km (0.062 R)
• M16: 11,606,850 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 714.3

Radius: 8.5

Gravity: 9.89 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.45 AU - 2.29 AU

Year: 1678 Days

Day: 6.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,033,164 km

• M1: 107,561 km (0.067 R)
• M2: 518,057 km (0.117 R)
• M3: 1,102,686 km (0.059 R)
• M4: 1,408,015 km (0.116 R)
• M5: 1,886,130 km (0.118 R)
• M6: 2,229,756 km (0.101 R)
• M7: 2,547,951 km (0.098 R)
• M8: 3,882,065 km (0.092 R)
• M9: 4,520,548 km (0.068 R)
• M10: 4,948,847 km (0.069 R)
• M11: 5,293,221 km (0.034 R)
• M12: 6,574,826 km (0.092 R)
• M13: 7,206,429 km (0.081 R)
• M14: 8,169,689 km (0.062 R)
• M15: 9,705,311 km (0.101 R)
• M16: 12,220,201 km (0.107 R)
• M17: 12,691,135 km (0.111 R)
• M18: 13,133,347 km (0.038 R)
• M19: 13,544,292 km (0.099 R)
• M20: 14,696,794 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 671.8

Radius: 5.4

Gravity: 23.04 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 7.28 AU - 8.22 AU

Year: 14153 Days

Day: 24.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 60,033,164 km

• M1: 69,114 km (0.105 R)
• M2: 257,608 km (0.114 R)
• M3: 546,930 km (0.096 R)
• M4: 885,769 km (0.041 R)
• M5: 1,183,170 km (0.07 R)
• M6: 1,686,267 km (0.093 R)
• M7: 2,841,612 km (0.115 R)
• M8: 3,055,686 km (0.059 R)
• M9: 3,357,575 km (0.108 R)
• M10: 4,230,329 km (0.102 R)
• M11: 4,670,446 km (0.095 R)
• M12: 5,387,169 km (0.074 R)
• M13: 5,604,684 km (0.114 R)
• M14: 5,980,474 km (0.1 R)
• M15: 7,928,538 km (0.086 R)
• M16: 8,210,380 km (0.108 R)
• M17: 8,794,111 km (0.106 R)
• M18: 8,994,722 km (0.117 R)
• M19: 9,667,912 km (0.053 R)
• M20: 12,445,645 km (0.032 R)
• M21: 12,635,036 km (0.11 R)
• M22: 14,637,104 km (0.105 R)
• M23: 15,494,001 km (0.11 R)
• M24: 18,922,335 km (0.085 R)
• M25: 31,935,555 km (0.117 R)
• M26: 33,861,628 km (0.037 R)
• M27: 36,634,424 km (0.118 R)
• M28: 39,691,307 km (0.051 R)
• M29: 39,964,922 km (0.113 R)
• M30: 40,515,741 km (0.051 R)
• M31: 43,491,542 km (0.079 R)
• M32: 47,836,014 km (0.072 R)
• M33: 51,156,488 km (0.099 R)
• M34: 52,790,396 km (0.117 R)
• M35: 57,549,702 km (0.04 R)
• M36: 59,316,453 km (0.074 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 509 - 19,528 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit